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Chen L, Hu J, Wang H, He Y, Deng Q, Wu F. Predicting Cd(II) adsorption capacity of biochar materials using typical machine learning models for effective remediation of aquatic environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 944:173955. [PMID: 38879031 DOI: 10.1016/j.scitotenv.2024.173955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/12/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
The screening and design of "green" biochar materials with high adsorption capacity play a pivotal role in promoting the sustainable treatment of Cd(II)-containing wastewater. In this study, six typical machine learning (ML) models, namely Linear Regression, Random Forest, Gradient Boosting Decision Tree, CatBoost, K-Nearest Neighbors, and Backpropagation Neural Network, were employed to accurately predict the adsorption capacity of Cd(II) onto biochars. A large dataset with 1051 data points was generated using 21 input variables obtained from batch adsorption experiments, including preparation conditions for biochar (2 features), physical properties of biochar (4 features), chemical composition of biochar (9 features), and adsorption experiment conditions (6 features). The rigorous evaluation and comparison of the ML models revealed that the CatBoost model exhibited the highest test R2 value (0.971) and the lowest RMSE (20.54 mg/g), significantly outperforming all other models. The feature importance analysis using Shapley Additive Explanations (SHAP) indicated that biochar chemical compositions had the greatest impact on model predictions of adsorption capacity (42.2 %), followed by adsorption conditions (37.57 %), biochar physical characteristics (12.38 %), and preparation conditions (7.85 %). The optimal experimental conditions optimized by partial dependence plots (PDP) are as follows: as high Cd(II) concentration as possible, C(%) of 33 %, N(%) of 0.3 %, adsorption time of 600 min, pyrolysis time of 50 min, biochar dosage of less than 2 g/L, O(%) of 42 %, biochar pH value of 11.2, and DBE of 1.15. This study unveils novel insights into the adsorption of Cd(II) and provides a comprehensive reference for the sustainable engineering of biochars in Cd(II) wastewater treatment.
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Affiliation(s)
- Long Chen
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China; State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Jian Hu
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Hong Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yanying He
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Qianyi Deng
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China
| | - Fangfang Wu
- School of Chemistry and Materials Science, Hunan Engineering Research Center for Biochar, Hunan Agricultural University, Changsha, Hunan 410128, China.
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Ko YG. Hybrid method integrating adsorption and chemical precipitation of heavy metal ions on polymeric fiber surfaces for highly efficient water purification. CHEMOSPHERE 2024; 363:142909. [PMID: 39033862 DOI: 10.1016/j.chemosphere.2024.142909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024]
Abstract
A lot of research has been focused on increasing the specific surface area of adsorbents over a long period of time to remove heavy metal ions from wastewater using the adsorbent. However, porous adsorbents with high specific surface area have demonstrated drawbacks in water purification processes, such as high pressure drop and limitations in the adsorption capacity of heavy metal ions. In recent years, a mechanism-based convergence method involving adsorption/chemical precipitation has emerged as a promising strategy to surmount the constraints associated with porous adsorbents. The mechanism involves amine groups on chelating fibers dissociating OH- ions from water molecules, thereby raising the pH near the fibers. This elevated pH promotes the crystallization of heavy metal ions on the fiber surfaces. The removal of heavy metal ions proceeds through a sequence of adsorption and chemical precipitation processes. An adsorbent based on chelating fibers, integrating adsorption technology with chemical precipitation, demonstrates superior performance in removing significant quantities of heavy metal ions (ca. 1000-2000 mg/g for Cd2+, Cu2+ and Pb2+) when compared to developed porous adsorbents (ca. 50-760 mg/g for same ions). This review paper introduces advanced polymer fibers endowed with the capability to integrate hybrid technology, delves into the mechanism of hybrid technology, and examines its application in process technology for the effective removal of heavy metal ions. The versatility of these advanced fibers extends far beyond the removal of heavy metal ions in water treatment, making them poised to garner significant attention from researchers across diverse fields due to their broad range of potential applications. After further processes involving the removal of templates from chelating polymeric fibers used as supports and the reduction of precipitated heavy metal oxide crystals, the resulting heavy metal crystals can exhibit thin walls and well-interconnected porous structures, suitable for catalytic applications.
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Affiliation(s)
- Young Gun Ko
- Department of Chemical Engineering and Materials Science, Sangmyung University, Hongjimun 2-gil 20, Jongno-gu, Seoul, 03016, Republic of Korea.
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3
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Tibebu S, Kassahun E, Ale TH, Worku A, Sime T, Berhanu AA, Akino B, Hailu AM, Ayana LW, Shibeshi A, Mohammed MA, Lema NK, Ammona AA, Tebeje A, Korsa G, Ayele A, Nuru S, Kebede S, Ayalneh S, Angassa K, Weldmichael TG, Ashebir H. The application of Rumex Abysinicus derived activated carbon/bentonite clay/graphene oxide/iron oxide nanocomposite for removal of chromium from aqueous solution. Sci Rep 2024; 14:19280. [PMID: 39164377 PMCID: PMC11335875 DOI: 10.1038/s41598-024-70238-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Accepted: 08/14/2024] [Indexed: 08/22/2024] Open
Abstract
Rapid industrialization has significantly boosted economic growth but has also introduced severe environmental challenges, particularly in water pollution. This study evaluates the effectiveness of a nanocomposite composed of Rumex Abyssinicus Activated Carbon/Acid Activated Bentonite Clay/Graphene Oxide, and Iron Oxide (RAAC/AABC/GO/Fe3O4) for chromium removal from aqueous solutions. The preparation of the nanocomposite involved precise methods, and its characterization was performed using Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) surface area analysis, and the point of zero charge (pHpzc). Batch adsorption experiments were designed using Design Expert software with a central composite design under response surface methodology. The factors investigated included pH (3, 6, and 9), initial Cr (VI) concentration (40, 70, and 100 mg/L), adsorbent dose (0.5, 0.75, 1 g/200 mL), and contact time (60, 90, and 120 min). Adsorption isotherms were analyzed using nonlinearized Langmuir, Freundlich, and Temkin models, while pseudo-first-order and pseudo-second-order models were applied to adsorption kinetics. Characterization revealed a pHpzc of 8.25, a porous and heterogeneous surface (SEM), diverse functional groups (FTIR), an amorphous structure (XRD), and a significant surface area of 1201.23 m2/g (BET). The highest removal efficiency of 99.91% was achieved at pH 6, with an initial Cr (VI) concentration of 70 mg/L, a 90 min contact time, and an adsorbent dose of 1 g/200 mL. Optimization of the adsorption process identified optimal parameters as pH 5.84, initial Cr (VI) concentration of 88.94 mg/L, contact time of 60 min, and adsorbent dose of 0.52 g/200 mL. The Langmuir isotherm model, with an R2 value of 0.92836, best described the adsorption process, indicating a monolayer adsorption mechanism. The pseudo-second-order kinetics model provided the best fit with an R2 value of 0.988. Overall, the nanocomposite demonstrates significant potential as a cost-effective and environmentally friendly solution for chromium removal from wastewater.
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Affiliation(s)
- Solomon Tibebu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia.
| | - Estifanos Kassahun
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Innovation Incubation Center & Intellectual Property Right Coordination Office, University-Industry Linkage & Technology Transfer Directorate, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Tigabu Haddis Ale
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abebe Worku
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Takele Sime
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Afework Aemro Berhanu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Belay Akino
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abrha Mulu Hailu
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Department of Chemistry, Aksum University, Tigray, Ethiopia
| | - Lalise Wakshum Ayana
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
- Manufacturing Industry Development Institute, Chemical and Construction Inputs Industry Research and Development Center, Addis Ababa, Ethiopia
| | - Abebaw Shibeshi
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Mohammednur Abdu Mohammed
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Niguse Kelile Lema
- Department of Biotechnology, Arba Minch University, Arba Minch, Ethiopia
| | - Andualem Arka Ammona
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Aseged Tebeje
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Gamachis Korsa
- Department of Biotechnology, College of Applied and Natural Science, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Abate Ayele
- Department of Biotechnology, College of Applied and Natural Science, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Saba Nuru
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Seble Kebede
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Shiferaw Ayalneh
- Department of Chemical Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Kenatu Angassa
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Tsedekech Gebremeskel Weldmichael
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
| | - Hailu Ashebir
- Department of Environmental Engineering, College of Engineering, Sustainable Energy Center of Excellence, Bioprocess and Biotechnology Center of Excellence, Nanotechnology Center of Excellence, Addis Ababa Science and Technology University, 16417, Addis Ababa, Ethiopia
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Cui K, Han X, Zhou P, Hao M, Wang X, Bian L, Nie J, Yang G, Liang J, Liu X, Wang F. A novel highly dispersed calcium silicate hydrate nanosheets for efficient high-concentration Cu 2+ adsorption. JOURNAL OF HAZARDOUS MATERIALS 2024; 475:134774. [PMID: 38870850 DOI: 10.1016/j.jhazmat.2024.134774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/15/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Currently, the low cost and effective purification toward heavy metal ions in wastewater has garnered global attention. Herein, we used hydrothermal method to prepare highly dispersed calcium silicate hydrate in fluorite tailings. And the stacking thickness of calcium silicate hydrate layered morphology was less than 5 nm. For high concentration Cu2+ purification investigation in wastewater, we found that the equilibrium adsorption capacity reached 797.92 mg/g via the CSH with 3:2 Ca/Si molar ratio, be 1.43-21.8 times than that of reported data. Therein, the metal-metal exchange and deposition are the primary pathways for Cu2+ adsorption, and electrostatic attraction is the secondary pathway. And the relative ∼100 % removal rate of high-concentration Ni2+ and Cr3+ ions were confirmed via CSH prepared from different tailings. This method offers a cost-effective way to utilize tailings for preparing highly efficient adsorbents toward HMIs removal in wastewater.
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Affiliation(s)
- Kaibin Cui
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Xiaoyu Han
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Pengfei Zhou
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Ming Hao
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Xianku Wang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Liang Bian
- Key Laboratory of Solid Waste Treatment and Resource Recycle, State Key Laboratory of Environment-friendly Energy Materials, Tianfu Institute of Research and Innovation, School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China.
| | - Jianan Nie
- Key Laboratory of Solid Waste Treatment and Resource Recycle, State Key Laboratory of Environment-friendly Energy Materials, Tianfu Institute of Research and Innovation, School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Guanling Yang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Jinsheng Liang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China
| | - Xinnan Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, State Key Laboratory of Environment-friendly Energy Materials, Tianfu Institute of Research and Innovation, School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
| | - Fei Wang
- Key Laboratory of Special Functional Materials for Ecological Environment and Information (Hebei University of Technology), Ministry of Education, Tianjin 300130, China; Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China.
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5
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Kumari S, Chowdhry J, Kumar M, Chandra Garg M. Zeolites in wastewater treatment: A comprehensive review on scientometric analysis, adsorption mechanisms, and future prospects. ENVIRONMENTAL RESEARCH 2024; 260:119782. [PMID: 39142462 DOI: 10.1016/j.envres.2024.119782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 08/08/2024] [Accepted: 08/11/2024] [Indexed: 08/16/2024]
Abstract
Zeolites possess a microporous crystalline structure, a large surface area, and a uniform pore size. Natural or synthetic zeolites are commonly utilized for adsorbing organic and inorganic compounds from wastewater because of their unique physicochemical properties and cost-effectiveness. The present review work comprehensively revealed the application of zeolites in removing a diverse range of wastewater contaminates, such as dyes, heavy metal ions, and phenolic compounds, within the framework of contemporary research. The present review work offers a summary of the existing literature about the chemical composition of zeolites and their synthesis by different methods. Subsequently, the article provides a wide range of factors to examine the adsorption mechanisms of both inorganic and organic pollutants using natural zeolites and modified zeolites. This review explores the different mechanisms through which zeolites effectively eliminate pollutants from aquatic matrices. Additionally, this review explores that the Langmuir and pseudo-second-order models are the predominant models used in investigating isothermal and kinetic adsorption and also evaluates the research gap on zeolite through scientometric analysis. The prospective efficacy of zeolite materials in future wastewater treatment may be assessed by a comparative analysis of their capacity to adsorb toxic inorganic and organic contaminates from wastewater, with other adsorbents.
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Affiliation(s)
- Sheetal Kumari
- Amity Institute of Environmental Science (AIES), Amity University, Noida, India
| | | | - Manish Kumar
- Amity Institute of Environmental Science (AIES), Amity University, Noida, India.
| | - Manoj Chandra Garg
- Amity Institute of Environmental Science (AIES), Amity University, Noida, India.
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Mosharaf MK, Gomes RL, Cook S, Alam MS, Rasmusssen A. Wastewater reuse and pharmaceutical pollution in agriculture: Uptake, transport, accumulation and metabolism of pharmaceutical pollutants within plants. CHEMOSPHERE 2024; 364:143055. [PMID: 39127189 DOI: 10.1016/j.chemosphere.2024.143055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
The presence of pharmaceutical pollutants in water sources has become a growing concern due to its potential impacts on human health and other organisms. The physicochemical properties of pharmaceuticals based on their intended therapeutical application, which include antibiotics, hormones, analgesics, and antidepressants, is quite diverse. Their presence in wastewater, sewerage water, surface water, ground water and even in drinking water is reported by many researchers throughout the world. Human exposure to these pollutants through drinking water or consumption of aquatic and terrestrial organisms has raised concerns about potential adverse effects, such as endocrine disruption, antibiotic resistance, and developmental abnormalities. Once in the environment, they can persist, undergo transformation, or degrade, leading to a complex mixture of contaminants. Application of treated wastewater, compost, manures or biosolids in agricultural fields introduce pharmaceutical pollutants in the environment. As pharmaceuticals are diverse in nature, significant differences are observed during their uptake and accumulation in plants. While there have been extensive studies on aquatic ecosystems, the effect on agricultural land is more disparate. As of now, there are few reports available on the potential of plant uptake and transportation of pharmaceuticals within and between plant organs. This review summarizes the occurrence of pharmaceuticals in aquatic water bodies at a range of concentrations and their uptake, accumulation, and transport within plant tissues. Research gaps on pharmaceutical pollutants' specific effect on plant growth and future research scopes are highlighted. The factors affecting uptake of pharmaceuticals including hydrophobicity, ionization, physicochemical properties (pKa, logKow, pH, Henry's law constant) are discussed. Finally, metabolism of pharmaceuticals within plant cells through metabolism phase enzymes and plant responses to pharmaceuticals are reviewed.
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Affiliation(s)
- Md Khaled Mosharaf
- Agriculture and Environmental Sciences Division, School of Biosciences, Sutton Bonington, University of Nottingham, LE12 5RD, United Kingdom; Department of Environmental Science, Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
| | - Rachel L Gomes
- Food Water Waste Research Group, Faculty of Engineering, University of Nottingham, NG7 2RD, United Kingdom
| | - Sarah Cook
- Water and Environmental Engineering, School of Engineering, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Mohammed S Alam
- Agriculture and Environmental Sciences Division, School of Biosciences, Sutton Bonington, University of Nottingham, LE12 5RD, United Kingdom
| | - Amanda Rasmusssen
- Agriculture and Environmental Sciences Division, School of Biosciences, Sutton Bonington, University of Nottingham, LE12 5RD, United Kingdom
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da Silva TL, da Costa TB, de Carvalho Neves HS, da Silva MGC, Guirardello R, Vieira MGA. Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34496-z. [PMID: 39098971 DOI: 10.1007/s11356-024-34496-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/22/2024] [Indexed: 08/06/2024]
Abstract
In this study, four Brazilian clays (Bofe, Verde-lodo, commercial Fluidgel, and expanded commercial vermiculite) were evaluated for their adsorptive capacity and removal percentage in relation to different toxic metals (Ni2+, Cd2+, Zn2+, and Cu2+). The best results were obtained by expanded vermiculite, with cadmium removal reaching values of 95%. The most promising clay was modified by the sodification process, and the metal cadmium was used to evaluate the ion exchange process. The clays expanded vermiculite (EV) and VNa-sodified vermiculite were evaluated by equilibrium study at 25, 35, and 45 °C. At 25 °C, EV obtained a maximum adsorption capacity of 0.368 mmol/g and sodified vermiculite 0.480 mmol/g, which represents an improvement of 30.4% in modified clay capacity. At 45 °C, the sodified vermiculite reached 0.970 mmol/g adsorption capacity. The Langmuir, Redlich-Peterson Freundlich, and Dubinin-Raduskevich models were adjusted to the results. Langmuir provided the best fit among the models. The thermodynamic quantities (ΔS, ΔH, and ΔG) demonstrated that the process is spontaneous and endothermic and the metal is captured by physisorption and chemisorption in the studied temperature range. For the ion exchange equilibrium, the binary Langmuir and binary Langmuir-Freundlich models were adjusted to the expanded vermiculite and sodified vermiculite isotherms, respectively. Both models were predictive. Thermal analysis indicated good heat resistance even after material modification. The apparent and real densities demonstrated that after each treatment or contamination, the clayey material undergoes contraction in its structure. An improved efficiency of the adsorbent was found after sodification.
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Affiliation(s)
- Thiago Lopes da Silva
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein, 500, Campinas, São Paulo, 13083-852, Brazil
| | - Talles Barcelos da Costa
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein, 500, Campinas, São Paulo, 13083-852, Brazil
| | | | - Meuris Gurgel Carlos da Silva
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein, 500, Campinas, São Paulo, 13083-852, Brazil
| | - Reginaldo Guirardello
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein, 500, Campinas, São Paulo, 13083-852, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein, 500, Campinas, São Paulo, 13083-852, Brazil.
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Singh J, Mehta A, Basu S. N-doped nano-casted carbon monolith for Pb (II) removal and photocatalytic degradation of thiamethoxam from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34490-5. [PMID: 39096456 DOI: 10.1007/s11356-024-34490-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Accepted: 07/22/2024] [Indexed: 08/05/2024]
Abstract
Single rock-like N-doped carbon monolith (ND-PFCM) was successfully constructed via nanocasting method. Phenol formaldehyde resin was taken as carbon source and nitrogen was incorporated in monoliths through NaNH2 activation. The synthesized monoliths were used for the removal of Pb (II) from aqueous solution. Various characterization techniques, namely Brunauer-Emmett-Teller (BET), Raman spectroscopy, UV-visible diffuse reflectance spectra (DRS) UV-DRS, zeta potential, scanning electron microscopy (SEM), TEM (transmission electron microscopy), TGA (thermogravimetric analysis), and XPS (X-ray photoelectron spectroscopy), were utilized to characterize synthesized monolithic samples. The different parameters such as pH, adsorbent dosage, and time were enquired on the removal efficiency of monoliths toward Pb(II). ND-PFCM exhibited the highest adsorption capacity of 330.03 mg g-1 in 180 min at pH 6. This is attributed to the fact that the better texture properties and presence of nitrogen functional groups enhance the uptake of Pb (II) ions on the monolith surface. In the kinetic studies, pseudo-second-order model fitted best with the experimental data. Furthermore, the removal of thiamethoxam (TM) from aqueous solution was done by using different weight ratios of ND-PFCM under the visible light. The maximum removal efficiency of 97.35% with rate constant of 0.02085 min-1 was obtained in 160 min. Moreover, monoliths exhibited good reusability for five consecutive cycles. The findings suggest that the synthesized monoliths exhibit characteristics suitable and eco-friendly for sustainable use in water treatment applications.
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Affiliation(s)
- Jasminder Singh
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India.
| | - Akansha Mehta
- FunGlass-Centre for Functional and Surface Functionalized Glass, Alexander Dubcek University of Trencin, 91150, Trencin, Slovakia
| | - Soumen Basu
- Department of Chemistry, School of Chemistry & Biochemistry, Thapar Institute of Engineering and Technology (Deemed to Be University), Patiala, 147004, Punjab, India
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Chen L, Fang L, Tan W, Bing H, Zeng Y, Chen X, Li Z, Hu W, Yang X, Shaheen SM, White JC, Xing B. Nano-enabled strategies to promote safe crop production in heavy metal(loid)-contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174505. [PMID: 38971252 DOI: 10.1016/j.scitotenv.2024.174505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/08/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Nanobiotechnology is a potentially safe and sustainable strategy for both agricultural production and soil remediation, yet the potential of nanomaterials (NMs) application to remediate heavy metal(loid)-contaminated soils is still unclear. A meta-analysis with approximately 6000 observations was conducted to quantify the effects of NMs on safe crop production in soils contaminated with heavy metal(loid) (HM), and a machine learning approach was used to identify the major contributing features. Applying NMs can elevate the crop shoot (18.2 %, 15.4-21.2 %) and grain biomass (30.7 %, 26.9-34.9 %), and decrease the shoot and grain HM concentration by 31.8 % (28.9-34.5 %) and 46.8 % (43.7-49.8 %), respectively. Iron-NMs showed a greater potential to inhibit crop HM uptake compared to other types of NMs. Our result further demonstrates that NMs application substantially reduces the potential health risk of HM in crop grains by human health risk assessment. The NMs-induced reduction in HM accumulation was associated with decreasing HM bioavailability, as well as increased soil pH and organic matter. A random forest model demonstrates that soil pH and total HM concentration are the two significant features affecting shoot HM accumulation. This analysis of the literature highlights the significant potential of NMs application in promoting safe agricultural production in HM-contaminated agricultural lands.
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Affiliation(s)
- Li Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712000, China.
| | - Linchuan Fang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712000, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China.
| | - Wenfeng Tan
- State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Haijian Bing
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
| | - Yi Zeng
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712000, China
| | - Xunfeng Chen
- Biofuels Institute, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zimin Li
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 71000, China
| | - Weifang Hu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510000, China
| | - Xing Yang
- College of Ecology and Environment, Hainan University, Haikou 570100, China
| | - Sabry M Shaheen
- School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, University of Wuppertal, Wuppertal, Germany; Faculty of Environmental Sciences, Department of Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia; Faculty of Agriculture, Department of Soil and Water Sciences, University of Kafrelsheikh, Kafr El-Sheikh, Egypt
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, USA
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10
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Callisaya MP, Fuentes DP, Braga VHA, Finzi-Quintão CM, Oliveira PV, Petri DFS. Harnessing carboxymethyl cellulose and Moringa oleifera seed husks for sustainable treatment of a multi-metal real waste. ENVIRONMENTAL RESEARCH 2024; 252:118970. [PMID: 38642642 DOI: 10.1016/j.envres.2024.118970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/30/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
This study aimed to evaluate effective treatment strategies for laboratory waste with an initial pH of 1.0, containing Cr6+, Mn2+, Co2+, Fe3+, Ni2+, Cu2+, Zn2+, Sr2+, Hg2+, and Pb2+ ions, focusing on flocculation, precipitation, and adsorption techniques. The study utilized microparticles derived from Moringa oleifera seed husks (MS), cryogels of carboxymethyl cellulose (CMC), and hybrid cryogels combining CMC and MS (CMC-MS25 and CMC-MS50) as adsorbents. The optimal strategy involved raising the pH to 7 using NH4OH, leading to the partial precipitation of metal ions. The remaining supernatant was then passed through columns packed with the aforementioned adsorbents. Utilizing CMC-MS25 and CMC-MS50 adsorbents resulted in the simultaneous removal of over 90% of the targeted metal ions. The adsorption of Cu2+ ions onto the adsorbents was facilitated by electrostatic interactions between Cu2+ ions and carboxylate groups, as well as Cu-OH chelation, as confirmed by X-ray photoelectron spectroscopy. Under optimized conditions, the fixed-bed column adsorption capacity was determined as 88.2 mg g-1. The CMC-MS25 adsorbents proved reusable at least 5 times, with the recovered Cu2+ ions potentially suitable for other processes. The scalability and feasibility of producing these novel adsorbents suggest a promising, cost-effective solution for treating complex matrices and recovering high-value metals, as copper.
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Affiliation(s)
- Marleidy P Callisaya
- Institute of Chemistry, University of São Paulo, Brazil Av. Prof. Lineu Prestes 748, 05508-000, São Paulo, Brazil.
| | - Dairon P Fuentes
- Institute of Chemistry, University of São Paulo, Brazil Av. Prof. Lineu Prestes 748, 05508-000, São Paulo, Brazil.
| | - Victor H A Braga
- Institute of Chemistry, University of São Paulo, Brazil Av. Prof. Lineu Prestes 748, 05508-000, São Paulo, Brazil.
| | - Cristiane M Finzi-Quintão
- Department of Chemical Engineering, Federal University of São João del-Rei (UFSJ), Ouro Branco, Brazil.
| | - Pedro V Oliveira
- Institute of Chemistry, University of São Paulo, Brazil Av. Prof. Lineu Prestes 748, 05508-000, São Paulo, Brazil.
| | - Denise F S Petri
- Institute of Chemistry, University of São Paulo, Brazil Av. Prof. Lineu Prestes 748, 05508-000, São Paulo, Brazil.
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11
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Fang X, Zhang G, Zhang X, He S, Xu W, Zhang X, Zhong S. Resource utilization of medical waste incineration fly ash to activate peroxydisulfate for tetracycline degradation: Synergy between adsorption and PDS activation. ENVIRONMENTAL RESEARCH 2024; 258:119488. [PMID: 38925468 DOI: 10.1016/j.envres.2024.119488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/13/2024] [Accepted: 06/22/2024] [Indexed: 06/28/2024]
Abstract
Medical waste incineration fly ash (MWI FA) is classified as a hazardous solid waste. Therefore, the development of recycling technologies to convert MWI FA into useful products is necessary and challenging. In this study, we developed a sustainable approach for preparing a catalyst through the pyrolysis of water-washed MWI FA (WW FA-x, where x corresponds to the pyrolysis temperature). Subsequently, it was applied as a potent peroxydisulfate (PDS) activator to remove tetracycline (TC) from water. The results showed that the WW FA-800 exhibited remarkable adsorption performance as well as highly efficient catalytic activation of PDS, with a 115 mg/g maximum TC adsorption capacity and 93.5% (reaction kinetic rate = 315 μmol/g/h) TC removal within 60 min. A synergistic effect was achieved by adsorption and PDS activation. TC degradation was primarily driven by non-radical (1O2 and electron transfer) processes. WW FA-800 possesses multiple active sites, including defects, π-π*, O-CO groups, Fe0, and Cu(I). Three possible pathways for TC decomposition have been proposed, with the majority of intermediates exhibiting less toxicity than TC. Furthermore, the WW FA/PDS system exhibited an excellent anti-interference ability, and universality in the degradation of various organic contaminants. Notably, energy consumption was minimal, approximately 2.80 kWh/(g·TC), and the leachability of heavy metals in the WW FA-800 was within acceptable limits. This study provides a MWI FA recycling route for the development of highly active catalysts.
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Affiliation(s)
- Xiaolin Fang
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Guichang Zhang
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Xiaoping Zhang
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China; The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters of Ministry of Education, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, 510006, PR China; Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, PR China.
| | - Songwen He
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Wei Xu
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Xin Zhang
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
| | - Siqi Zhong
- School of Environment & Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, PR China
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12
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Wang G, Chen C, Li J, Lan Y, Lin X, Chen J. Conversion of Phosphogypsum into Porous Calcium Silicate Hydrate for the Removal and Recycling of Pb(II) and Cd(II) from Wastewater. Molecules 2024; 29:2665. [PMID: 38893539 PMCID: PMC11173502 DOI: 10.3390/molecules29112665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/21/2024] Open
Abstract
The discharge of lead and cadmium wastewater, along with the pollution caused by phosphogypsum, represents a particularly urgent environmental issue. This study employed a straightforward hydrothermal method to convert phosphogypsum into porous calcium silicate hydrate (P-CSH), which was then used to remove and recover Pb(II) and Cd(II) from wastewater. The adsorption capacities of P-CSH for Pb(II) and Cd(II) were notably high at 989.3 mg/g and 290.3 mg/g, respectively. The adsorption processes adhered to the pseudo-second-order kinetics model and the Langmuir isotherm model. Due to identical adsorption sites on P-CSH for both Pb(II) and Cd(II), competitive interaction occurred when both ions were present simultaneously. Additionally, the adsorption efficacy was minimally impacted by the presence of common coexisting cations in wastewater. The dominant mechanisms for removing Pb(II) and Cd(II) via P-CSH were chemical precipitation and surface complexation. Moreover, the adsorbed heavy metals were efficiently separated and reclaimed from the wastewater through a stepwise desorption process. The primary components of the residue from stepwise desorption were quartz and amorphous SiO2. Following dissolution via pressurized alkaline leaching, this residue could be recycled for synthesizing P-CSH. This research offered a new strategy for the resourceful use of phosphogypsum and heavy metal wastewater.
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Affiliation(s)
- Gangan Wang
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
| | - Chaoyi Chen
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
| | - Junqi Li
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
- Guizhou Province Dual Carbon and New Energy Technology Innovation and Development Research Institute, Guiyang 550025, China
| | - Yuanpei Lan
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
| | - Xin Lin
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
| | - Jiahang Chen
- School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China; (G.W.); (Y.L.); (X.L.); (J.C.)
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13
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Alterary SS. Potent and Versatile Biogenically Synthesized Alumina/Nickel Oxide Nanocomposite Adsorbent for Defluoridation of Drinking Water. ACS OMEGA 2024; 9:23220-23240. [PMID: 38854543 PMCID: PMC11154934 DOI: 10.1021/acsomega.3c09076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 05/01/2024] [Accepted: 05/09/2024] [Indexed: 06/11/2024]
Abstract
In the present work, an extract of Salvia officinalis leaves was used to synthesize an alumina/NiO nanocomposite by the coprecipitation method. First, the shape and surface content of the synthesized adsorbent were determined. Scanning electron microscopy images showed the production of nanospheres and nanorods with sizes between 35 and 50 nm. X-ray diffraction measurement revealed strong, high-intensity peaks, confirming the preparation of a highly crystalline alumina/nickel oxide nanocomposite. Then, the pure nanoalumina, nickel oxide, and functionalized alumina/nickel oxide nanocomposite for water defluoridation were investigated under various conditions, for example, stirring period, pH, and initial fluoride concentration. Defluoridation with greener alumina, nickel oxide, and alumina/nickel oxide nanocomposite lasted 120 min at adsorbent dosages of 0.8 g/L in a pH 7 solution. The adoption process for the three sorbents matches the Langmuir adsorption isotherm. The process dynamics were explored using pseudo-second-order and first-order kinetics. The water quality after treatment met drinking water requirements, proving the viability of using nanoparticles for drinking water defluoridation. This work confirmed effective water defluoridation in the crystalline phase using synthesized nanoalumina, nickel oxide, and their nanocomposite, which highlights their importance for future drinking water defluoridation.
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Affiliation(s)
- Seham S. Alterary
- Department of Chemistry, College of
Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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14
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Satyam S, Patra S. Innovations and challenges in adsorption-based wastewater remediation: A comprehensive review. Heliyon 2024; 10:e29573. [PMID: 38699034 PMCID: PMC11064087 DOI: 10.1016/j.heliyon.2024.e29573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 05/05/2024] Open
Abstract
Water contamination is an escalating emergency confronting communities worldwide. While traditional adsorbents have laid the groundwork for effective water purification, their selectivity, capacity, and sustainability limitations have driven the search for more advanced solutions. Despite many technological advancements, economic, environmental, and regulatory hurdles challenge the practical application of advanced adsorption techniques in large-scale water treatment. Integrating nanotechnology, advanced material fabrication techniques, and data-driven design enabled by artificial intelligence (AI) and machine learning (ML) have led to a new generation of optimized, high-performance adsorbents. These advanced materials leverage properties like high surface area, tailored pore structures, and functionalized surfaces to capture diverse water contaminants efficiently. With a focus on sustainability and effectiveness, this review highlights the transformative potential of these advanced materials in setting new benchmarks for water purification technologies. This article delivers an in-depth exploration of the current landscape and future directions of adsorbent technology for water remediation, advocating for a multidisciplinary approach to overcome existing barriers in large-scale water treatment applications.
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Affiliation(s)
- Satyam Satyam
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Sanjukta Patra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
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15
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Goswami S, Dutta D, Pandey S, Chattopadhyay P, Lalhmunsiama, Dubey R, Tiwari D. Novel fibrous Ag(NP) decorated clay-polymer composite: Implications in water purification contaminated with predominant micro-pollutants and bacteria. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 359:121063. [PMID: 38704955 DOI: 10.1016/j.jenvman.2024.121063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 04/11/2024] [Accepted: 04/29/2024] [Indexed: 05/07/2024]
Abstract
Due to the potential harm caused by emerging micro-pollutants to living organisms, contaminating water supplies by micro-pollutants like EDCs, pharmaceuticals, and microorganisms has become a concern in many countries. Considering both microbiological and micro-pollutant exposure risks associated with water use for agricultural/or household purposes, it is imperative to create a strategy for improving pollutant removal from treated wastewater that is both effective and affordable. Natural clay minerals efficiently remove contaminants from wastewater, though the pristine clay has less affinity to several organic pollutants. Hydrophilic polymers, viz., poly(ethylene glycol) (PEG), improve the dispersion of particles, flocculation processes, and surface properties. In this study, PEG grafted with attapulgite, thereby providing a high-specific surface-area, mesoporous materials for the adsorption of micro-pollutants like ciprofloxacin (CIP) and 17α-ethinylestradiol (EE2) at high rates. A gentle washing process regenerates the clay-polymer material several times with no performance loss, and the natural water implications show fair applicability of solid in decontaminating the CIP and EE2 in an aqueous medium. Further, greenly synthesized silver nanoparticles in situ disperse with the clay polymer efficiently remove the gram-positive and gram-negative bacterium viz., Bacillus subtilis, and Pseudomonas aeruginosa, which are commonly persistent in aquatic environments. The clay polymer outperformed a modified clay composite to eliminate microorganisms and organic micro-pollutants in significant quantities quickly. These results clearly show the importance of fibrous clay-polymer composite for water purification technologies.
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Affiliation(s)
- Swagata Goswami
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India
| | - Dhiraj Dutta
- DRL, Post Bag No 02, Tezpur, Assam, 784001, India
| | - Shreekant Pandey
- Department of Biotechnology, Vinoba Bhave University, Hazaribagh, Jharkhand, 825301, India
| | | | - Lalhmunsiama
- Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India
| | - Rama Dubey
- DRL, Post Bag No 02, Tezpur, Assam, 784001, India
| | - Diwakar Tiwari
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India.
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16
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Wiśniewska M, Nowicki P. Research on Green Adsorbents. Molecules 2024; 29:1855. [PMID: 38675675 PMCID: PMC11054294 DOI: 10.3390/molecules29081855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Adsorption processes play a crucial role in air purification, wastewater treatment, soil remediation technologies, noble metals recovery, and long-term energy storage systems [...].
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Affiliation(s)
- Małgorzata Wiśniewska
- Department of Radiochemistry and Environmental Chemistry, Faculty of Chemistry, Institute of Chemical Sciences, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - Piotr Nowicki
- Department of Applied Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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17
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Fu M, Ma Q, Luo Y, Feng W, Wang X. Na/N Co-doped Seaweed Biochar Composite for Efficient Removal of Aqueous Pb(II) and Cu(II). Chem Asian J 2024:e202400163. [PMID: 38606886 DOI: 10.1002/asia.202400163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/13/2024]
Abstract
Pollution from harmful heavy metal ions such as Pb(II) and Cu(II) is causing serious environmental and health problems. In this study, Sodium and nitrogen co-doped porous carbon material (Na/NABc) was successfully prepared from seaweed, sodium hydroxide, and dicyandiamide. The experimental results showed that Na/NABc is an excellent adsorbent for the effective removal of Pb(II) and Cu(II) from water bodies. Specifically, 99.8% of Pb(II) and 64.6% Cu(II) (100 mg/L) were removed within 12 h using 10 mg Na/NABc(10%) at 25 °C. The adsorption of Pb(II) and Cu(II) in aqueous solution by Na/NABc(10%) was efficient and rapid in the first stage. The theoretical maximum removal capacities of Na/NABc for Pb(II) and Cu(II) were 959.6 and 299.1 mg/g, respectively. Pb(II) and Cu(II) ions were adsorbed quickly in the first 60 min, and the kinetics data were generally consistent with a pseudo-second-order model. Na/NABc(10%) had a large distribution coefficient for Pb(II) (8.38 L/mg) and Cu(II) (1.17 L/mg). The possible mechanisms were precipitation, Ion exchange, and surface complexation. The removal rate can reach about 70% after five cycles, and the release of sodium meets the standard. The results of this study demonstrate the potential applicability of Na/NABc(10%) for adsorption of heavy metals from aqueous solution.
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Affiliation(s)
- Meiyuan Fu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Soil Pollution Remediation and Resource Reuse of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Qianhui Ma
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Soil Pollution Remediation and Resource Reuse of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Yun Luo
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Soil Pollution Remediation and Resource Reuse of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Wen Feng
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Soil Pollution Remediation and Resource Reuse of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
| | - Xianghui Wang
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Soil Pollution Remediation and Resource Reuse of Haikou City, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China
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18
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Chen F, Zhao Y, Zhao H, Zhou X, Liu X. Heavy Metal Removal from Wastewater Using Poly(Gamma-Glutamic Acid)-Based Hydrogel. Gels 2024; 10:259. [PMID: 38667678 PMCID: PMC11049372 DOI: 10.3390/gels10040259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024] Open
Abstract
The removal of toxic heavy metal ions from wastewater is of great significance in the protection of the environment and human health. Poly(gamma-glutamic acid) (PGA) is a non-toxic, biodegradable, and highly water-soluble polymer possessing carboxyl and imino functional groups. Herein, water-insoluble PGA-based hydrogels were prepared, characterized, and investigated as heavy metal adsorbents. The prepared hydrogels were recyclable and exhibited good adsorption effects on heavy metal ions including Cu2+, Cr6+, and Zn2+. The effects of adsorption parameters including temperature, solution pH, initial concentration of metal ions, and contact time on the adsorption capacity of the hydrogel for Cu2+ were investigated. The adsorption was a spontaneous and exothermic process. The process followed the pseudo-first-order kinetic model and Langmuir isotherm model, implying a physical and monolayer adsorption. The adsorption mechanisms investigation exhibited that Cu2+ adsorbed on the hydrogel via electrostatic interactions with anionic carboxylate groups of PGA in addition to the coordination interactions with the -NH groups. Importantly, the PGA hydrogel exhibited good reusability and the adsorption capability for Cu2+ remained high after five consecutive cycles. The properties of PGA hydrogel make it a potential candidate material for heavy metal ion removal in wastewater treatment.
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Affiliation(s)
- Fujie Chen
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China; (F.C.)
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan 430200, China
| | - Yanbin Zhao
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China; (F.C.)
| | - Hang Zhao
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China; (F.C.)
| | - Xuan Zhou
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Xiuying Liu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China; (F.C.)
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Arslan Topal EI, Öbek E, Topal M. Is Cladophora fracta an efficient tool of accumulating critical raw materials from wastewater and there a potential health risk of use of algae as organic fertilizer? INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1977-1994. [PMID: 37097044 DOI: 10.1080/09603123.2023.2203905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
In this study investigation of accumulations of critical raw materials (cobalt (Co), antimony (Sb), vanadium (V), lanthanum (La) and tungsten (W)) from wastewater by using C. fracta were aimed. Besides, assessment of the potential health risks in terms of the use of organic fertilizer obtained from the macroalga to be harvested from the treatment were also aimed. Highest Co, Sb, V, La and W accumulations by algae in reactor were 125±6.2%, 201.25±10%, 318.18±15%, 357.97±18%, and 500±25%, respectively. When compared with control, Co, Sb, V, La and W in algae increased 2.25, 3.01, 4.18, 4.58, and 6 times, respectively. The algae was very high bioaccumulative for Co and La. Highest MPI was calculated as 3.94. Non-carcinogenic risk of CRMs according to different exposure types (ingestion, inhalation, and dermal) were calculated for man, woman and child. There is not any non-carcinogenic risk from the investigated exposure ways of algae as organic fertilizer.
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Affiliation(s)
- E Işıl Arslan Topal
- Department of Environmental Engineering, Faculty of Engineering, Firat University, Elazığ, Turkey
| | - Erdal Öbek
- Department of Bioengineering, Faculty of Engineering, Firat University, Elazığ, Turkey
| | - Murat Topal
- Department of Chemistry Processing Technologies, Tunceli Vocation School, Munzur University, Tunceli, Turkey
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20
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Maurya BM, Yadav N, T A, J S, A S, V P, Iyer M, Yadav MK, Vellingiri B. Artificial intelligence and machine learning algorithms in the detection of heavy metals in water and wastewater: Methodological and ethical challenges. CHEMOSPHERE 2024; 353:141474. [PMID: 38382714 DOI: 10.1016/j.chemosphere.2024.141474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/17/2024] [Accepted: 02/14/2024] [Indexed: 02/23/2024]
Abstract
Heavy metals (HMs) enter waterbodies through various means, which, when exceeding a threshold limit, cause toxic effects both on the environment and in humans upon entering their systems. Recent times have seen an increase in such HM influx incident rates. This requires an instant response in this regard to review the challenges in the available classical methods for HM detection and removal. As well as provide an opportunity to explore the applications of artificial intelligence (AI) and machine learning (ML) for the identification and further redemption of water and wastewater from the HMs. This review of research focuses on such applications in conjunction with the available in-silico models producing worldwide data for HM levels. Furthermore, the effect of HMs on various disease progressions has been provided, along with a brief account of prediction models analysing the health impact of HM intoxication. Also discussing the ethical and other challenges associated with the use of AI and ML in this field is the futuristic approach intended to follow, opening a wide scope of possibilities for improvement in wastewater treatment methodologies.
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Affiliation(s)
- Brij Mohan Maurya
- Human Cytogenetics and Stem Cell Laboratory, Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Nidhi Yadav
- Human Cytogenetics and Stem Cell Laboratory, Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Amudha T
- Department of Computer Applications, Bharathiar University, Coimbatore, India
| | - Satheeshkumar J
- Department of Computer Applications, Bharathiar University, Coimbatore, India
| | - Sangeetha A
- Department of Computer Applications, Bharathiar University, Coimbatore, India
| | - Parthasarathy V
- Department of Computer Science and Engineering, Karpagam Academy of Higher Education, Pollachi Main Road, Eachanari Post, Coimbatore, 641021, Tamil Nadu, India
| | - Mahalaxmi Iyer
- Centre for Neuroscience, Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore, 641021, Tamil Nadu, India; Department of Microbiology, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Mukesh Kumar Yadav
- Department of Microbiology, Central University of Punjab, Bathinda, 151401, Punjab, India
| | - Balachandar Vellingiri
- Human Cytogenetics and Stem Cell Laboratory, Department of Zoology, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, Punjab, India.
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21
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Mwebembezi T, Wakatuntu J, Jjagwe J, Kanyesigye C, Kulabako RN, Olupot PW. Synthesis, characterization and application of steel waste-based iron oxide nanoparticles for removal of heavy metals from industrial wastewaters. Heliyon 2024; 10:e28153. [PMID: 38524616 PMCID: PMC10958420 DOI: 10.1016/j.heliyon.2024.e28153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/27/2024] [Accepted: 03/13/2024] [Indexed: 03/26/2024] Open
Abstract
Water treatment and reuse can avail more clean and safe water for human use. In this study, iron oxide waste powder generated from the steel pickling process was used to develop iron oxide nanoparticles (IONPs) using solution gelation synthesis process. The powder and developed IONPs were characterized by X-ray fluorescence and diffraction (XRF, XRD), scanning electron microscopy, Fourier-transform infrared spectroscopy, and Brunauer-Emmett-Teller (BET) analyses. Adsorption experiments were carried out on synthetic water with lead and chromium metal ions. The adsorption data were analysed with Langmuir and Freundlich models. Adsorption kinetics were also analysed with Pseudo-First-Order and Pseudo-Second-Order models using non-linear regression. The synthesized IONPs were porous with active surface functional groups of hydroxyl bonds, with BET specific surface area of 325.02 m2/g. XRD results confirmed the cubic spinel structure of IONPs with particle sizes of 20-30 nm. The nanoparticles at a dosage of 0.35 g in 10 mL for 50 min effectively removed Pb(II) and Cr(VI) metal ions up to 99.9% from both synthetic water and industrial wastewater. The adsorption capacity (qmax) of IONPs was found to be 417 and 326.80 for Pb(II) and Cr(VI) respectively. Freundlich isotherm model data fitted best for the removal of both metal ions. The regression values for kinetic models confirmed that pseudo-second-order best fit the adsorption of both Pb(II) and Cr(VI) confirming chemisorption processes. This study contributes to elucidating alternative application of pickling waste from the steel rolling mills for the benefit of heavy metal removal in industrial wastewater.
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Affiliation(s)
- Tumutungire Mwebembezi
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala-Uganda
| | - Joel Wakatuntu
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala-Uganda
| | - Joseph Jjagwe
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala-Uganda
| | | | - Robinah N. Kulabako
- Department of Civil and Environmental Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala-Uganda
| | - Peter Wilberforce Olupot
- Department of Mechanical Engineering, College of Engineering, Design, Art and Technology, Makerere University, P.O. Box 7062, Kampala-Uganda
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22
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Muleta WS, Denboba SM, Bayu AB. Corncob-supported calcium oxide nanoparticles from hen eggshells for cadmium (Cd-II) removal from aqueous solutions; Synthesis and characterization. Heliyon 2024; 10:e27767. [PMID: 38515665 PMCID: PMC10955318 DOI: 10.1016/j.heliyon.2024.e27767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/24/2024] [Accepted: 03/06/2024] [Indexed: 03/23/2024] Open
Abstract
This study investigated the efficient removal of cadmium ions from aqueous solutions using calcium oxide nanoparticles (CaO NPs) synthesized from waste hen eggshells using a Sol-gel method and supported on corncob bio-adsorbent. The synthesized CaO NPs were characterized using FT-IR, XRD, specific surface area, and TGA. Batch adsorption experiments were conducted to examine the influence of process parameters such as adsorbent dosages, initial Cd (II) concentrations, pH values, and contact times. XRD analysis revealed that the synthesized CaO nanoparticles had a size of 24.34 nm and a specific surface area of 77.4 m2/g. The optimal conditions for achieving the highest percent removal of cadmium (99.108%) were found to be an initial concentration of 55 ppm, pH 7, adsorbent dose of 0.75 g, and contact time of 50 min. The experimental removal efficiency closely matched the predicted value (99.0%), indicating the suitability of the method used in optimizing the removal of Cd (II) ions from aqueous solutions. These findings, corroborated by predicted values, underscore the efficacy of our method in optimizing cadmium removal. Based on these findings, it can be concluded that corncob-supported CaO NPs are optimized for their highest efficiency and hold great promise as a cost-effective and environmentally friendly solution for wastewater treatment with a focus on cadmium removal.
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Affiliation(s)
- Werkne Sorsa Muleta
- School of Chemical Engineering, Jimma Institute of Technology, Jimma University, 378, Jimma, Ethiopia
| | - Sultan Mulisa Denboba
- Faculty of Materials Science and Engineering, Jimma Institute of Technology, Jimma University, 378, Jimma, Ethiopia
| | - Abreham Bekele Bayu
- School of Chemical Engineering, Jimma Institute of Technology, Jimma University, 378, Jimma, Ethiopia
- Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233, Gdansk, Poland
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23
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Wang X, Ren K, Jiao K, Nie W, An X, Lian B. Selective immobilization of Pb(II) by biogenic whewellite and its mechanism. J Environ Sci (China) 2024; 137:664-676. [PMID: 37980049 DOI: 10.1016/j.jes.2023.03.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 11/20/2023]
Abstract
The development of bio-adsorbents with highly selective immobilization properties for specific heavy metals is a great challenge, but has important application value. Biogenic whewellite (BW) with high selectivity for Pb(II) was synthesized by mineral microbial transformation. The selective immobilization properties and mechanism of BW for Pb(II) were analyzed by combining mineral characterization technology and batch adsorption research methods. The results indicated that BW can efficiently and selectively immobilize Pb(II) in single or composite heavy metal adsorption solutions, and the immobilized Pb(II) is difficult to desorb. BW undergoes monolayer adsorption on Pb(II), Qmax ≈ 1073.17 mg/g. The immobilization of Pb(II) by BW is a physico-chemical adsorption process with spontaneous heat absorption and an accompanying increase in entropy. In addition, the sequestration of Pb(II) by BW remains around 756.99 mg/g even at pH = 1. The excellent selective immobilization properties of BW for Pb(II) are closely related to its smaller Ksp, electrostatic repulsion effect, organic-inorganic composite structure, acid resistance and the formation of Pb(II) oxalate. This study provides beneficial information about the recycling of lead in acidic lead-containing wastewater and composite heavy metal contaminated water bodies.
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Affiliation(s)
- Xingxing Wang
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Kaiyan Ren
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Kairui Jiao
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Wenjun Nie
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Xiaochi An
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Bin Lian
- College of Life Sciences, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
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24
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Yin X, Xu P, Wang H. Efficient and Selective Removal of Heavy Metals and Dyes from Aqueous Solutions Using Guipi Residue-Based Hydrogel. Gels 2024; 10:142. [PMID: 38391472 PMCID: PMC10887816 DOI: 10.3390/gels10020142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/05/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024] Open
Abstract
The presence of organic dyes and heavy metal ions in water sources poses a significant threat to human health and the ecosystem. In this study, hydrogel adsorbents for water pollution remediation were synthesized using Guipi residue (GP), a cellulose material from Chinese herbal medicine, and chitosan (CTS) through radical polymerization with acrylamide (AM) and acrylic acid (AA). The characteristics of the hydrogels were analyzed from a physicochemical perspective, and their ability to adsorb was tested using model pollutants such as Pb2+, Cd2+, Rhodamine B (RhB), and methyl orange (MO). The outcomes revealed that GP/CTS/AA-co-AM, which has improved mechanical attributes, effectively eliminated these pollutants. At a pH of 4.0, a contact duration of 120 min, and an initial concentration of 600 mg/L for Pb2+ and 500 mg/L for Cd2+, the highest adsorption capabilities were 314.6 mg/g for Pb2+ and 289.1 mg/g for Cd2+. Regarding the dyes, the GP/CTS/AA-co-AM hydrogel displayed adsorption capacities of 106.4 mg/g for RhB and 94.8 mg/g for MO, maintaining a stable adsorption capacity at different pHs. Compared with other competitive pollutants, GP/CTS/AA-co-AM demonstrated a higher absorption capability, mainly targeted toward Pb2+. The adsorption processes for the pollutants conformed to pseudo-second-order kinetics models and adhered to the Langmuir models. Even after undergoing five consecutive adsorption and desorption cycles, the adsorption capacities for heavy metals and dyes remained above 70% and 80%. In summary, this study effectively suggested the potential of the innovative GP/CTS/AA-co-AM hydrogel as a practical and feasible approach for eliminating heavy metals and dyes from water solutions.
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Affiliation(s)
- Xiaochun Yin
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
| | - Pei Xu
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
| | - Huiyao Wang
- Department of Civil Engineering, New Mexico State University, Las Cruces, NM 88003, USA
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25
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Wang Y, Wu X, Zhou Z, Feng J, Li M, Chen J, Yan W. Selective Adsorption Behavior of Sulfuric Acid Oxidized and Doped Conjugated Microporous Poly(aniline)s toward Lead Ions in an Aqueous Environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38329721 DOI: 10.1021/acs.langmuir.3c03317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
The coexistence of lead, zinc, and copper ions in wastewater constitutes an environmental challenge of pressing concern. This research delves into the preparation of innovative oxidation-doped conjugated microporous poly(aniline) frameworks, exploring their prospective efficacy in regulating lead ion adsorption from aqueous solutions. H2SO4-CMPTA demonstrates the capability to reach adsorption equilibrium within 15 min at a lead concentration of 50 ppm. Even at a lead concentration of 20 ppm, it still efficaciously attenuates these levels to sub-10 ppb, a value surpassing extant standard. H2SO4-CMPTA retains over 78.8% adsorption efficiency after six cycles. Analytical characterization coupled with computational calculations suggests that sulfate-coordinated nitrogen cationic structure plays a crucial role in adsorption. A deeper investigation reveals the cardinal role of electrostatic attraction and exclusive chelation adsorption underpinning the efficient capture of lead ions by doped sulfate ions. Intriguingly, in a mixed heavy metal solution containing lead, zinc, and copper ions, H2SO4-CMPTA exhibits an initial predilection toward zinc ions, yet an eventual ion-exchange adsorption gravitating toward lead ions was discerned, governed by the latter's superior binding energy. Our study elucidates a promising material as an efficacious tool for the remediation of aquatic environments tainted with lead contaminants.
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Affiliation(s)
- Yubing Wang
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xiaoxi Wu
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Ziyi Zhou
- Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Department of Applied Chemistry, School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jiangtao Feng
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Mingtao Li
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jie Chen
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, P. R. China
| | - Wei Yan
- Department of Environmental Science and Engineering, Xi'an Key Laboratory of Solid Waste Recycling and Resource Recovery, Xi'an Jiaotong University, Xi'an 710049, P. R. China
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
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26
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Camparotto NG, de Figueiredo Neves T, de Souza Vendemiatti J, Dos Santos BT, Vieira MGA, Prediger P. Adsorption of contaminants by nanomaterials synthesized by green and conventional routes: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:12683-12721. [PMID: 38253828 DOI: 10.1007/s11356-024-31922-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/04/2024] [Indexed: 01/24/2024]
Abstract
Nanomaterials, due to their large surface area and selectivity, have stood out as an alternative for the adsorption of contaminants from water and effluents. Synthesized from green or traditional protocols, the main advantages and disadvantages of green nanomaterials are the elimination of the use of toxic chemicals and difficulty of reproducing the preparation of nanomaterials, respectively, while traditional nanomaterials have the main advantage of being able to prepare nanomaterials with well-defined morphological properties and the disadvantage of using potentially toxic chemicals. Thus, based on the particularities of green and conventional nanomaterials, this review aims to fill a gap in the literature on the comparison of the synthesis, morphology, and application of these nanomaterials in the adsorption of contaminants in water. Focusing on the adsorption of heavy metals, pesticides, pharmaceuticals, dyes, polyaromatic hydrocarbons, and phenol derivatives in water, for the first time, a review article explored and compared how chemical and morphological changes in nanoadsorbents synthesized by green and conventional protocols affect performance in the adsorption of contaminants in water. Despite advances in the area, there is still a lack of review articles on the topic.
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Affiliation(s)
| | | | | | - Bruna Toledo Dos Santos
- School of Technology, University of Campinas - Unicamp, Limeira , São Paulo, CEP: 13484-332, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, University of Campinas - UNICAMP, Albert Einstein Avenue, 500, Campinas, São Paulo, 13083-852, Brazil
| | - Patrícia Prediger
- School of Technology, University of Campinas - Unicamp, Limeira , São Paulo, CEP: 13484-332, Brazil.
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27
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Mohammadi A, Jafarpour E, Mirzaei K, Shojaei A, Jafarpour P, Beikmohammadi Eyni M, Mirzaei S, Molavi H. Novel ZIF-8/CNC Nanohybrid with an Interconnected Structure: Toward a Sustainable Adsorbent for Efficient Removal of Cd(II) Ions. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3862-3875. [PMID: 38194357 DOI: 10.1021/acsami.3c15524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Water pollution, especially by heavy metals, continues to pose significant challenges, emphasizing the urgency to develop sustainable processes to remove pollutants while developing sustainable materials derived from renewable sources. In the present research, a nanoscale adsorbent was prepared to remove cadmium (Cd(II)) ions from wastewater by hybridizing zeolitic imidazolate framework-8 (ZIF-8) with a cellulose nanocrystal (CNC). The prepared nanohybrid exhibited an interconnected structure in which the ZIF-8 particles were connected to each other via CNC nanoneedles. The hybridization of ZIF-8 with CNC caused a significant enhancement in the adsorption performance of the fabricated nanohybrid compared to pure ZIF-8, increasing its adsorption capacity by nearly 36%. The adsorption of ZIF/CNC followed the Langmuir isotherm model and pseudo-second-order kinetics models, remarking homogeneous adsorption onto the surface of ZIF/CNC, where chemisorption controlled the rate of adsorption. The thermodynamic study uncovered that the adsorption is spontaneous, endothermic, and entropy-governed as the randomness was increased at the solid-liquid interface. Additionally, the influence of operating variables, such as temperature, adsorbent dosage, pH, and ionic strength, was studied to mimic the adsorption capabilities of the adsorbent in real conditions. Accordingly, the optimum conditions were found to be at 45 °C and pH = 7 with a dosage of 0.4 g/L for the adsorbent. Moreover, the adsorption in a multimetal solution showed that the ZIF/CNC nanohybrid can remove various heavy metals, including Cd(II), Fe(III), Cu(II), and Pb(II) ions simultaneously. Finally, the regeneration study confirmed the great potential of the ZIF/CNC nanohybrid, which retained 94% of its initial adsorption capacity after 5 consecutive adsorption/desorption cycles.
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Affiliation(s)
- Ali Mohammadi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465 Tehran, Iran
| | - Erfan Jafarpour
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465 Tehran, Iran
| | - Kamyar Mirzaei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465 Tehran, Iran
| | - Akbar Shojaei
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465 Tehran, Iran
| | - Peyman Jafarpour
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Mahboube Beikmohammadi Eyni
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, P.O. Box 11155-9465 Tehran, Iran
| | - Shaghayegh Mirzaei
- School of Chemical Engineering, College of Engineering, University of Tehran, 14176-14411 Tehran, Iran
| | - Hossein Molavi
- Department of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), Gava Zang, 45137-66731 Zanjan, Iran
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28
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Saleem M, Hussain H, Shukrullah S, Yasin Naz M, Irfan M, Rahman S, Ghanim AAJ. Study of Kinetics and the Working Mechanism of Silica-Coated Amino-Functionalized CoFe 2O 4 Ferrite Nanoparticles to Treat Wastewater for Heavy Metals. ACS OMEGA 2024; 9:3507-3524. [PMID: 38284017 PMCID: PMC10809704 DOI: 10.1021/acsomega.3c07200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/30/2024]
Abstract
This study used a simple coprecipitation method to produce pristine, silica-coated, and amino-functionalized CoFe2O4 nanoadsorbents. Amino-functionalization was done to increase the active surface area and metal ion removal efficiency. Both pristine and functionalized adsorbents were employed to recover Pb(II), Zn(II), and Cu(II) ions from wastewater. The adsorption tests were performed by varying the initial concentration of metal ions and contact time at a fixed pH of 6.5. Atomic adsorption spectroscopy was utilized to detect the proportion of metals removed from water. Additionally, the pseudo-first-order, pseudo-second-order, Freundlich, and Langmuir models were employed to compute the kinetic and isothermic data from metal ion adsorption onto the adsorbents. The amino-functionalized adsorbent showed adsorption capacities of 277.008, 254.453, and 258.398 mg/g for Cu(II), Pb(II), and Zn(II) ions, respectively. According to the adsorption results, the Langmuir isotherm and the pseudo-second-order model best suit the data. The best fitting of the pseudo-second-order model with the data indicates that coordinative interactions between amino groups and metal ions are responsible for chemisorption. The metal ions bind with -NH2 groups on the adsorbent surface through chelate bonds. Chelate bonds are extremely strong and stable, indicating the effectiveness of the CoFe2O4@SiO2-NH2 adsorbent in adsorbing heavy-metal ions. The tested adsorbent exhibited good performance, batter stability, and good reusable values around 77, 81, and 76% for Cu(II), Pb(II), and Zn(II) ions, respectively, after five adsorption cycles.
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Affiliation(s)
- Muhammad
Umer Saleem
- Department
of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Humaira Hussain
- Department
of Chemistry, University of Okara, 56300 Okara, Pakistan
| | - Shazia Shukrullah
- Department
of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Muhammad Yasin Naz
- Department
of Physics, University of Agriculture Faisalabad, 38040 Faisalabad, Pakistan
| | - Muhammad Irfan
- Electrical
Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia
| | - Saifur Rahman
- Electrical
Engineering Department, College of Engineering, Najran University Saudi Arabia, Najran 61441, Saudi Arabia
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29
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Velarde L, Nikjoo D, Escalera E, Akhtar F. Bolivian natural zeolite as a low-cost adsorbent for the adsorption of cadmium: Isotherms and kinetics. Heliyon 2024; 10:e24006. [PMID: 38234893 PMCID: PMC10792578 DOI: 10.1016/j.heliyon.2024.e24006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/26/2023] [Accepted: 01/02/2024] [Indexed: 01/19/2024] Open
Abstract
Population growth in recent years has led to increased wastewater production and pollution of water resources. This situation also heavily affects Bolivia, so wastewater treatment methods and materials suitable for Bolivian society should be explored. This study investigated the natural Bolivian Zeolite (BZ) and its NaCl-modified structure (NaBZ) as adsorbents for cadmium removal from water. The natural BZ and the modified form NaBZ were investigated by different physicochemical characterization techniques. Furthermore, XPS and FT-IR techniques were used to investigate the adsorption mechanisms. The cadmium adsorption on BZ and NaBZ was analyzed using various mathematical models, and the Langmuir model provided a better description of the experimental adsorption data with cadmium adsorption capacities of 20.2 and 25.6 mg/g for BZ and NaBZ, respectively. The adsorption followed the pseudo-second order kinetics. The effect of different parameters, such as initial cadmium concentration and pH on the adsorption was studied. In addition, the results of the regeneration test indicated that both BZ and NaBZ can be regenerated by using hydrochloric acid (HCl). Finally, the adsorption experiment of BZ and NaBZ on a real water sample (brine from Salar de Uyuni salt flat) containing a mixture of different heavy metals was carried out. The results obtained in this study demonstrate the effectiveness of natural BZ and modified NaBZ in the removal of heavy metals from wastewater.
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Affiliation(s)
- Lisbania Velarde
- Department of Chemistry, Faculty of Science and Technology, Universidad Mayor de San Simón, UMSS, Cochabamba, Bolivia
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Dariush Nikjoo
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Edwin Escalera
- Department of Chemistry, Faculty of Science and Technology, Universidad Mayor de San Simón, UMSS, Cochabamba, Bolivia
| | - Farid Akhtar
- Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, SE-971 87, Luleå, Sweden
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30
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Gao Y, Yi Z, Wang J, Ding F, Fang Y, Du A, Jiang Y, Zhao H, Jin Y. Interpretation of the adsorption process of toxic Cd 2+ removal by modified sweet potato residue. RSC Adv 2024; 14:433-444. [PMID: 38173571 PMCID: PMC10759277 DOI: 10.1039/d3ra06855b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Cadmium (Cd) is a common and toxic non-essential heavy metal that must be effectively treated to reduce its threat to the environment and public health. Adsorption with an adsorbent, such as agricultural waste, is widely used to remove heavy metals from wastewater. Sweet potato, the sixth most abundant food crop worldwide, produces a large amount of waste during postharvest processing that could be used as an economic adsorbent. In this study, the feasibility of using sweet potato residue (SPR) as an adsorbent for Cd2+ adsorption was assessed. To enhance the removal rate, SPR was modified with NaOH, and the effects of the modification and adsorption conditions on the removal of Cd2+ from wastewater were investigated. The results showed that modified sweet potato residue (MSPR) could be adapted to various pH and temperatures of simulated wastewater, implying its potential for multi-faceted application. Under optimized conditions, the removal of Cd2+ by MSPR was up to 98.94% with a maximum adsorption capacity of 19.81 mg g-1. Further investigation showed that the MSPR exhibited rich functional groups, a loose surface, and a mesoporous structure, resulting in advantageous characteristics for the adsorption of Cd2+. In addition, the MSPR adsorbed Cd2+ by complexation, ion exchange, and precipitation during a monolayer chemisorption adsorption process. This work demonstrates a sustainable and environment friendly strategy for Cd2+ removal from wastewater and a simple approach for the preparation of MSPR and also revealed the adsorption mechanism of Cd2+ by MSPR, thus providing a suitable adsorbent and strategy for the removal of other heavy metals.
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Affiliation(s)
- Yu Gao
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Zhuolin Yi
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Jinling Wang
- College of Life Science and Biotechnology, Mianyang Teachers' College Mianyang 621000 China
| | - Fan Ding
- Crop Characteristic Resources Creation and Utilization Key Laboratory of Sichuan Province, Mianyang Academy of Agricultural Sciences Mianyang 621023 China
| | - Yang Fang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Anping Du
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Yijia Jiang
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Hai Zhao
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
| | - Yanling Jin
- CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences Chengdu 610041 China
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31
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Kimbi Yaah VB, Ahmadi S, Quimbayo M J, Morales-Torres S, Ojala S. Recent technologies for glyphosate removal from aqueous environment: A critical review. ENVIRONMENTAL RESEARCH 2024; 240:117477. [PMID: 37918766 DOI: 10.1016/j.envres.2023.117477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/02/2023] [Accepted: 10/22/2023] [Indexed: 11/04/2023]
Abstract
The growing demand for food has led to an increase in the use of herbicides and pesticides over the years. One of the most widely used herbicides is glyphosate (GLY). It has been used extensively since 1974 for weed control and is currently classified by the World Health Organization (WHO) as a Group 2A substance, probably carcinogenic to humans. The industry and academia have some disagreements regarding GLY toxicity in humans and its effects on the environment. Even though this herbicide is not mentioned in the WHO water guidelines, some countries have decided to set maximum acceptable concentrations in tap water, while others have decided to ban its use in crop production completely. Researchers around the world have employed different technologies to remove or degrade GLY, mostly at the laboratory scale. Water treatment plants combine different technologies to remove it alongside other water pollutants, in some cases achieving acceptable removal efficiencies. Certainly, there are many challenges in upscaling purification technologies due to the costs and lack of factual information about their adverse effects. This review presents different technologies that have been used to remove GLY from water since 2012 to date, its detection and removal methods, challenges, and future perspectives.
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Affiliation(s)
- Velma Beri Kimbi Yaah
- Environmental and Chemical Engineering, Faculty of Technology, University of Oulu. Oulu, Finland; NanoTech - Nanomaterials and Sustainable Chemical Technologies. Department of Inorganic Chemistry, Faculty of Science, University of Granada, Avda. Fuente Nueva, 18071, Granada, Spain
| | - Sajad Ahmadi
- Environmental and Chemical Engineering, Faculty of Technology, University of Oulu. Oulu, Finland
| | - Jennyffer Quimbayo M
- Environmental and Chemical Engineering, Faculty of Technology, University of Oulu. Oulu, Finland; Nano and Molecular Systems Research Unit (NANOMO), Faculty of Science, University of Oulu. Oulu, Finland
| | - Sergio Morales-Torres
- NanoTech - Nanomaterials and Sustainable Chemical Technologies. Department of Inorganic Chemistry, Faculty of Science, University of Granada, Avda. Fuente Nueva, 18071, Granada, Spain
| | - Satu Ojala
- Environmental and Chemical Engineering, Faculty of Technology, University of Oulu. Oulu, Finland
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Liu F, Zhang Y, Zhong L, Feng Q, Dong Z, Xu Z. Dialdehyde modified and cationic aerogel for efficient microplastics adsorption from environmental waters. Int J Biol Macromol 2024; 256:128326. [PMID: 38000571 DOI: 10.1016/j.ijbiomac.2023.128326] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/09/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
Recent reports had shown that microplastics could be transferred to organisms through various channels, severely and adversely affecting organisms' health and their physiological functions. Therefore, there remained an urgency to adopt an effective and environmentally friendly method to extract microplastics from water. In this paper, a cationic-modified d-DCPG aerogel with a three-dimensional network structure was successfully prepared by a directional freeze-drying technology in which double-aldehyde-modified cellulose nanofiber (CNF) was used as the matrix, betaine chloride hydrazide (GT) provided modification, and polyvinyl alcohol (PVA) provided cross-linking function. Aerogels had an excellent adsorption capacity (145.05 mg/g) for microplastics in aqueous environment, and when the pH was from 10 to 4, it exhibited an excellent adsorption efficiency from 90.01 % to 97.61 %; an excellent adsorption efficiency after 8 cycles (>89 %); pseudo-second-order kinetics and Freundlich adsorption isotherm had a high fitting effects on the adsorption process and adsorption results, respectively. And ultraviolet analysis also verified the occurrence of adsorption behavior. These results showed that d-DCPG aerogels had an excellent application prospects in microplastics removal in river, lake, reservoir, and marine environments.
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Affiliation(s)
- Fei Liu
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Yuhui Zhang
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Li Zhong
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Qian Feng
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Zhaoji Dong
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China
| | - Zhaoyang Xu
- College of Material Science and Engineering, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, Jiangsu Province 210037, PR China.
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Ali AH, Kareem AB, Al-Rawi UA, Khalid U, Zhang S, Zafar F, Papraćanin E, Hatshan MR, Sher F. Kinetic and equilibrium study of graphene and copper oxides modified nanocomposites for metal ions adsorption from binary metal aqueous solution. Front Chem 2023; 11:1279948. [PMID: 38033474 PMCID: PMC10687419 DOI: 10.3389/fchem.2023.1279948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023] Open
Abstract
Presently, the main cause of pollution of natural water resources is heavy metal ions. The removal of metal ions such as nickel (Ni2+) and cadmium (Cd2+) has been given considerable attention due to their health and environmental risks. In this regard, for wastewater treatment containing heavy metal ions, graphene oxide (GO) nanocomposites with metal oxide nanoparticles (NPs) attained significant importance. In this study, graphene oxide stacked with copper oxide nanocomposites (GO/CuO-NCs) were synthesized and characterized by Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and atomic force microscopy (AFM) analytical procedures. The prepared GO/CuO-NCs were applied for the removal of Ni2+ and Cd2+ ions from a binary metal ion system in batch and continuous experiments. The obtained results revealed that GO/CuO-NCs exhibited the highest removal efficiencies of Ni2+ (89.60% ± 2.12%) and Cd2+ (97.10% ± 1.91%) at the optimum values of pH: 8, dose: 0.25 g, contact time: 60 min, and at 50 ppm initial metal ion concentration in a batch study. However, 4 mL/min flow rate, 50 ppm initial concentration, and 2 cm bed height were proved to be the suitable conditions for metal ion adsorption in the column study. The kinetic adsorption data exhibited the best fitting with the pseudo-second-order model. The adsorption isotherm provided the best-fitting data in the Langmuir isotherm model. This study suggested that the GO/CuO nanocomposites have proved to be efficient adsorbents for Ni2+ and Cd2+ ions from a binary metal system.
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Affiliation(s)
- Alaa H. Ali
- Water and Environmental Directorate, Ministry of Higher Education and Scientific Research, Baghdad, Iraq
| | | | | | - Ushna Khalid
- Department of Chemical Engineering and Analytical Sciences, The University of Manchester, Manchester, United Kingdom
- International Society of Engineering Science and Technology, Nottingham, United Kingdom
| | - Shengfu Zhang
- College of Materials Science and Engineering, Chongqing University, Chongqing, China
- Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and Advanced Materials, Chongqing University, Chongqing, China
| | - Fatima Zafar
- International Society of Engineering Science and Technology, Nottingham, United Kingdom
- Institute of Biochemistry and Biotechnology, University of the Punjab, Lahore, Pakistan
| | - Edisa Papraćanin
- International Society of Engineering Science and Technology, Nottingham, United Kingdom
- Department of Chemical Engineering, Faculty of Technology, University of Tuzla, Tuzla, Bosnia and Herzegovina
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, United Kingdom
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Alterary SS. Functionalized gum acacia-activated carbon-CaO/NiO nanocomposite for potential photocatalytic removal of organic pollutants from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:113520-113537. [PMID: 37851253 DOI: 10.1007/s11356-023-30328-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/04/2023] [Indexed: 10/19/2023]
Abstract
A functionalized gum acacia-activated carbon-CaO/NiO nanocomposite was synthesized using an eco-friendly sol-gel method. The formed nanocomposite was designed to apply various light sources to enhance the improved removal of organic dyes such as methylene blue, methyl orange, methyl red, and rhodamine B from aqueous media. The band gap energies of CaO, NiO nanoparticles and gum acacia-activated carbon were 3.54, 4.28, and 5.34 eV, respectively, corresponding to a reflection edge of 350, 290, and 232 nm, respectively. The surface area of the synthesized nanocomposite was measured to be 17.892 m2 g-1. Sunlight and 20 mg L-1 of the nanocomposite quenched the dyes (methylene blue, 99.7%; methyl orange, 98.3%; methyl red, 96.7%; and rhodamine B, 93.5%) after 120, 100, 100, and 75 min of irradiation, respectively. However, after 80, 100, 100, and 75 min, the percentage of dyes under UV light irradiation was 98.6%, 95.8%, 98.4%, and 94.2% for methylene blue, methyl orange, methyl red, and rhodamine B, respectively. The nanocomposite showed excellent stability after five cycles of dye reduction.
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Affiliation(s)
- Seham S Alterary
- Department of Chemistry, College of Science, King Saud University, P.O. Box 11495, Riyadh, Saudi Arabia.
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Yang W, Zhang L, Li M, Zhang T, Liu Y, Liu J. KOH-modified bamboo charcoal loaded with α-FeOOH for efficient adsorption of copper and fluoride ions from aqueous solution. RSC Adv 2023; 13:30176-30189. [PMID: 37849693 PMCID: PMC10577395 DOI: 10.1039/d3ra05315f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023] Open
Abstract
In this work, bamboo charcoal (BC) is prepared by pyrolysis of bamboo. Then, KOH modification and surface deposition of Goethite (α-FeOOH) are performed to obtain a new KOH-modified BC loaded with α-FeOOH (FKBC) adsorbent for copper (Cu2+) and fluoride (F-) ion adsorption from aqueous solution. Surface morphology and physiochemical properties of the prepared adsorbent are characterized by scanning electron microscopy-energy dispersive spectrometer, X-ray diffraction, and N2 adsorption-desorption. The effect of pH, contact time, adsorbent dosage, and initial concentration on Cu2+ and F- adsorption is also investigated. In addition, adsorption kinetics and isotherms are fitted to pseudo-second-order kinetics and Langmuir model, respectively. Thermodynamic parameters suggest that the adsorption process is spontaneous and endothermic. The adsorption mechanism is further characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The Cu2+ absorption mainly occurs through ion exchange, coordination reactions, and surface precipitation, while the F- adsorption mainly occurs via ion exchange and hydrogen bonding. The selective adsorption experiments reveal that FKBC has good selectivity for Cu2+ and F-. The adsorption-desorption experimental results indicate that FKBC can be reused for Cu2+ and F- adsorption after regeneration. Results indicate that FKBC can be a promising adsorbent for Cu2+ and F- removal from aqueous solutions.
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Affiliation(s)
- Wei Yang
- School of Environmental Science and Engineering, Hubei Polytechnic University Huangshi 435003 Hubei China
| | - Lei Zhang
- MWR Standard & Quality Control Research Institute Hangzhou 310024 Zhejiang China
| | - Meng Li
- School of Civil Engineering and Architecture, Wuhan University of Technology Wuhan 430070 Hubei China
| | - Ting Zhang
- School of Environmental Science and Engineering, Hubei Polytechnic University Huangshi 435003 Hubei China
| | - Yue Liu
- School of Environmental Science and Engineering, Hubei Polytechnic University Huangshi 435003 Hubei China
| | - Juan Liu
- School of Environmental Science and Engineering, Hubei Polytechnic University Huangshi 435003 Hubei China
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Vázquez-Sánchez AY, Lima EC, Abatal M, Tariq R, Santiago AA, Alfonso I, Aguilar C, Vazquez-Olmos AR. Biosorption of Pb(II) Using Natural and Treated Ardisia compressa K. Leaves: Simulation Framework Extended through the Application of Artificial Neural Network and Genetic Algorithm. Molecules 2023; 28:6387. [PMID: 37687217 PMCID: PMC10490334 DOI: 10.3390/molecules28176387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/15/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
This study explored the effects of solution pH, biosorbent dose, contact time, and temperature on the Pb(II) biosorption process of natural and chemically treated leaves of A. compressa K. (Raw-AC and AC-OH, respectively). The results show that the surface characteristics of Raw-AC changed following alkali treatment. FT-IR analysis showed the presence of various functional groups on the surface of the biosorbent, which were binding sites for the Pb(II) biosorption. The nonlinear pseudo-second-order kinetic model was found to be the best fitted to the experimental kinetic data. Adsorption equilibrium data at pH = 2-6, biosorbents dose from 5 to 20 mg/L, and temperature from 300.15 to 333.15 K were adjusted to the Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherm models. The results show that the adsorption capacity was enhanced with the increase in the solution pH and diminished with the increase in the temperature and biosorbent dose. It was also found that AC-OH is more effective than Raw-AC in removing Pb(II) from aqueous solutions. This was also confirmed using artificial neural networks and genetic algorithms, where it was demonstrated that the improvement was around 57.7%. The nonlinear Langmuir isotherm model was the best fitted, and the maximum adsorption capacities of Raw-AC and AC-OH were 96 mg/g and 170 mg/g, respectively. The removal efficiency of Pb(II) was maintained approximately after three adsorption and desorption cycles using 0.5 M HCl as an eluent. This research delved into the impact of solution pH, biosorbent characteristics, and operational parameters on Pb(II) biosorption, offering valuable insights for engineering education by illustrating the practical application of fundamental chemical and kinetic principles to enhance the design and optimization of sustainable water treatment systems.
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Affiliation(s)
- Alma Y. Vázquez-Sánchez
- Área Agroindustrial Alimentaria, Universidad Tecnológica de Xicotepec de Juárez, Av. Universidad Tecnológica No. 1000. Col. Tierra Negra Xicotepec de Juárez, Puebla 73080, Mexico;
| | - Eder C. Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves 9500, P.O. Box 15003, Porto Alegre 91501-970, RS, Brazil;
| | - Mohamed Abatal
- Facultad de Ingeniería, Universidad Autónoma del Carmen, Campeche 24115, Mexico
| | - Rasikh Tariq
- Institute for the Future of Education, Tecnologico de Monterrey, Monterrey 64849, Mexico;
| | - Arlette A. Santiago
- Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex. Hacienda de San José de la Huerta, Morelia 58190, Mexico;
| | - Ismeli Alfonso
- Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex. Hacienda de San José de la Huerta, Morelia 58190, Mexico;
| | - Claudia Aguilar
- Facultad de Química, Universidad Autónoma del Carmen, Calle 56 No. 4 Av. Concordia, Ciudad del Carmen, Campeche 24180, Mexico;
| | - América R. Vazquez-Olmos
- Instituto de Ciencias aplicadas y Tecnología, UNAM, Circuito Exterior, S/N, Ciudad Universitaria, A.P. 70-186, Delegación Coyoacán, Ciudad de México 04510, Mexico;
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Sen TK. Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review. Molecules 2023; 28:5575. [PMID: 37513447 PMCID: PMC10386015 DOI: 10.3390/molecules28145575] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/02/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Adsorption has become the most popular and effective separation technique that is used across the water and wastewater treatment industries. However, the present research direction is focused on the development of various solid waste-based adsorbents as an alternative to costly commercial activated carbon adsorbents, which make the adsorptive separation process more effective, and on popularising the sustainable options for the remediation of pollutants. Therefore, there are a large number of reported results available on the application of raw or treated agricultural biomass-based alternatives as effective adsorbents for aqueous-phase heavy metal ion removal in batch adsorption studies. The goal of this review article was to provide a comprehensive compilation of scattered literature information and an up-to-date overview of the development of the current state of knowledge, based on various batch adsorption research papers that utilised a wide range of raw, modified, and treated agricultural solid waste biomass-based adsorbents for the adsorptive removal of aqueous-phase heavy metal ions. Metal ion pollution and its source, toxicity effects, and treatment technologies, mainly via adsorption, have been reviewed here in detail. Emphasis has been placed on the removal of heavy metal ions using a wide range of agricultural by-product-based adsorbents under various physicochemical process conditions. Information available in the literature on various important influential physicochemical process parameters, such as the metal concentration, agricultural solid waste adsorbent dose, solution pH, and solution temperature, and importantly, the adsorbent characteristics of metal ion removal, have been reviewed and critically analysed here. Finally, from the literature reviewed, future perspectives and conclusions were presented, and a few future research directions have been proposed.
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Affiliation(s)
- Tushar Kanti Sen
- Chemical Engineering Department, College of Engineering, King Faisal University, P.O. Box 380, Al-Ahsa 31982, Saudi Arabia
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Xu Y, Lan J, Wang B, Bo C, Ou J, Gong B. Simple fabrication of carbon quantum dots and activated carbon from waste wolfberry stems for detection and adsorption of copper ion. RSC Adv 2023; 13:21199-21210. [PMID: 37456551 PMCID: PMC10339073 DOI: 10.1039/d3ra04026g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023] Open
Abstract
Removal of heavy metal pollution is an endless topic, because heavy metals can cause irreversible damage to the human body and environment. It is urgent to develop novel materials for detection and adsorption of heavy metal ions. In this paper, waste wolfberry straw was utilized as a carbon source, and two simple methods were developed to successfully prepare activated carbon (AC) and carbon quantum dots (CQDs). The fabrication conditions were optimized by adjusting the mass ratio of precursor to activator, type of activator and activation times. When sodium hydroxide (NaOH) was selected as an activator (6 : 1, mass ratio of NaOH to AC-precursor), and the activation was performed at 600 °C for 1 h, the highest specific surface area of the obtained AC-NaOH-3 reached 3016 m2 g-1. The adsorption capacity for copper ions (Cu2+) reached 68.06 mg g-1. The preparation conditions for CQDs were also optimized by adjusting the concentration of wolfberry stem, reaction time and temperature. When the wolfberry stem concentration was 7.5 g L-1, and the activation was performed at 200 °C for 24 h, the obtained CQDs exhibited strong fluorescence emission in the blank and 12 kinds of metal ion solutions, respectively, however, the fluorescence intensity was remarkably decreased after adding Cu2+. In the range of 10-80 nM, the linear correlation coefficient between the concentration of Cu2+ and fluorescence intensity of CQDs was 0.992, and the limit of detection was 2.83 nmol L-1. Thus, these two kinds of materials were prepared from wolfberry stem, which opened up a new way for the application in adsorption and detection of copper ions.
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Affiliation(s)
- Yunjia Xu
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Jingming Lan
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Baoying Wang
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Chunmiao Bo
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
| | - Junjie Ou
- State Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710127 China
| | - Bolin Gong
- School of Chemistry and Chemical Engineering, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University Yinchuan 750021 China
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Wu Z, Chen Z, Wang H, Liu H, Wei Z. Arsenic removal in flue gas through anaerobic denitrification and sulfate reduction cocoupled arsenic oxidation. CHEMOSPHERE 2023:139350. [PMID: 37399995 DOI: 10.1016/j.chemosphere.2023.139350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/12/2023] [Accepted: 06/25/2023] [Indexed: 07/05/2023]
Abstract
Arsenic in flue gas from municipal solid waste incineration can damage to human health and ecological environment. A sulfate-nitrate-reducing bioreactor (SNRBR) for flue gas arsenic removal was investigated. Arsenic removal efficiency attained 89.4%. An integrated metagenomic and metaproteomic investigation showed that three nitrate reductases (NapA, NapB and NarG), three sulfate reductases (Sat, AprAB and DsrAB), and arsenite oxidase (ArxA) regulated nitrate reduction, sulfate reduction and bacterial As(III)-oxidation, respectively. Citrobacter and Desulfobulbus could synthetically regulate the expression of arsenite-oxidizing gene, nitrate reductases and sulfate reducatases, which involved in As(III) oxidation, nitrate and sulfate reduction. A bacterial consortium containing Citrobacter, UG_Enterobacteriaceas, Desulfobulbus and Desulfovibrio could capable of simultaneously arsenic oxidation, sulfate reduction and denitrification. Anaerobic denitrification and sulfate reduction were cocoupled to arsenic oxidation. The biofilm was characterized by FTIR, XPS, XRD, EEM, and SEM. XRD and XPS spectra verified the formation of aarsenic species (As(V)) from flue gas As(III) conversion. Arsenic speciation in biofilms of SNRBR consisted of 77% residual arsenic, 15.9% organic matter-bound arsenic, and 4.3% strongly absorbed arsenic. Flue gas arsenic was bio-stabilized in the form of Fe-As-S and As-EPS through biodeposition, biosorption and biocomplexation. This provides a new way of flue gas arsenic removal using the sulfate-nitrate-reducing bioreactor.
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Affiliation(s)
- Zuotong Wu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510006, China.
| | - Zhuoyao Chen
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510006, China.
| | - Huiying Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510006, China.
| | - Haixu Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510006, China.
| | - Zaishan Wei
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510006, China.
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Zhai M, Fu B, Zhai Y, Wang W, Maroney A, Keller AA, Wang H, Chovelon JM. Simultaneous removal of pharmaceuticals and heavy metals from aqueous phase via adsorptive strategy: A critical review. WATER RESEARCH 2023; 236:119924. [PMID: 37030197 DOI: 10.1016/j.watres.2023.119924] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 03/03/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
The coexistence of pharmaceuticals and heavy metals is regarded as a serious threat to aquatic environments. Adsorbents have been widely applied to the simultaneous removal of pharmaceuticals and metals from aqueous phase. Through a comprehensive review, behaviors that promote, inhibit, or have no effect on simultaneous adsorption of pharmaceuticals and heavy metals were found to depend on the system of contaminants and adsorbents and their environmental conditions, such as: characteristics of adsorbent and pollutant, temperature, pH, inorganic ions, and natural organic matter. Bridging and competition effects are the main reasons for promoting and inhibiting adsorption in coexisting systems, respectively. The promotion is more significant in neutral or alkaline conditions. After simultaneous adsorption, a solvent elution approach was most commonly used for regeneration of saturated adsorbents. To conclude, this work could help to sort out the theoretical knowledge in this field, and may provide new insights into the prevention and control of pharmaceuticals and heavy metals coexisting in wastewater.
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Affiliation(s)
- Mudi Zhai
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Bomin Fu
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China; Macao Environmental Research Institute, Macau University of Science and Technology, Macao 999078, China
| | - Yuhui Zhai
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Weijie Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China
| | - Amy Maroney
- College of Engineering and Science, Louisiana Tech University, 201 Mayfield Ave. Ruston, LA 71272, United States
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93106, United States
| | - Hongtao Wang
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Siping Rd 1239, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, UNEP-TONGJI Institute of Environment for Sustainable Development, Shanghai 200092, China.
| | - Jean-Marc Chovelon
- IRCELYON, CNRS UMR 5256, Université Claude Bernard Lyon 1, 2 Avenue Albert-Einstein, Villeurbanne F-69626, France
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Pérez H, Quintero García OJ, Amezcua-Allieri MA, Rodríguez Vázquez R. Nanotechnology as an efficient and effective alternative for wastewater treatment: an overview. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:2971-3001. [PMID: 37387425 PMCID: wst_2023_179 DOI: 10.2166/wst.2023.179] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
The increase in the surface and groundwater contamination due to global population growth, industrialization, proliferation of pathogens, emerging pollutants, heavy metals, and scarcity of drinking water represents a critical problem. Because of this problem, particular emphasis will be placed on wastewater recycling. Conventional wastewater treatment methods may be limited due to high investment costs or, in some cases, poor treatment efficiency. To address these issues, it is necessary to continuously evaluate novel technologies that complement and improve these traditional wastewater treatment processes. In this regard, technologies based on nanomaterials are also being studied. These technologies improve wastewater management and constitute one of the main focuses of nanotechnology. The following review describes wastewater's primary biological, organic, and inorganic contaminants. Subsequently, it focuses on the potential of different nanomaterials (metal oxides, carbon-based nanomaterials, cellulose-based nanomaterials), membrane, and nanobioremediation processes for wastewater treatment. The above is evident from the review of various publications. However, nanomaterials' cost, toxicity, and biodegradability need to be addressed before their commercial distribution and scale-up. The development of nanomaterials and nanoproducts must be sustainable and safe throughout the nanoproduct life cycle to meet the requirements of the circular economy.
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Affiliation(s)
- Heilyn Pérez
- Centro Nacional de Estudios Avanzados de Instituto Politécnico Nacional, Av Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, Mexico City 07360, Mexico E-mail:
| | - Omar Jasiel Quintero García
- Centro Nacional de Estudios Avanzados de Instituto Politécnico Nacional, Av Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, Mexico City 07360, Mexico
| | - Myriam Adela Amezcua-Allieri
- Gerencia de Transformación de Biomasa, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte 152, colonia San Bartolo Atepehuacan, Mexico City 07730, Mexico
| | - Refugio Rodríguez Vázquez
- Centro Nacional de Estudios Avanzados de Instituto Politécnico Nacional, Av Instituto Politécnico Nacional 2508, San Pedro Zacatenco, Gustavo A. Madero, Mexico City 07360, Mexico
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Hussain M, Hussaini SS, Shariq M, Alzahrani H, Alholaisi AA, Alharbi SH, Alsharif SA, Al-Gethami W, Ali SK, Alaghaz ANMA, Siddiqui MA, Seku K. Enhancing Cu 2+ Ion Removal: An Innovative Approach Utilizing Modified Frankincense Gum Combined with Multiwalled Carbon Tubes and Iron Oxide Nanoparticles as Adsorbent. Molecules 2023; 28:4494. [PMID: 37298968 PMCID: PMC10254508 DOI: 10.3390/molecules28114494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Aquatic pollution, which includes organic debris and heavy metals, is a severe issue for living things. Copper pollution is hazardous to people, and there is a need to develop effective methods for eliminating it from the environment. To address this issue, a novel adsorbent composed of frankincense-modified multi-walled carbon nanotubes (Fr-MMWCNTs) and Fe3O4 [Fr-MWCNT-Fe3O4] was created and subjected to characterization. Batch adsorption tests showed that Fr-MWCNT-Fe3O4 had a maximum adsorption capacity of 250 mg/g at 308 K and could efficiently remove Cu2+ ions over a pH range of 6 to 8. The adsorption process followed the pseudo-second-order and Langmuir models, and its thermodynamics were identified as endothermic. Functional groups on the surface of modified MWCNTs improved their adsorption capacity, and a rise in temperature increased the adsorption efficiency. These results highlight the Fr-MWCNT-Fe3O4 composites' potential as an efficient adsorbent for removing Cu2+ ions from untreated natural water sources.
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Affiliation(s)
- Mushtaq Hussain
- Engineering Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Syed Sulaiman Hussaini
- Engineering Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Mohammad Shariq
- Department of Physics, College of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - Hanan Alzahrani
- Department of Physics, College of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - Arafa A. Alholaisi
- Department of Physics, Al-Qunfudah University College, Umm Al-Qura University, Makkah 24382, Saudi Arabia
| | - Samar H. Alharbi
- Department of Physics, Al-Qunfudah University College, Umm Al-Qura University, Makkah 24382, Saudi Arabia
| | - Sirajah A. Alsharif
- Department of Physics, Al-Qunfudah University College, Umm Al-Qura University, Makkah 24382, Saudi Arabia
| | - Wafa Al-Gethami
- Chemistry Department, Faculty of Science, Taif University, Al-Hawiah, Taif City P.O. Box 11099, Saudi Arabia
| | - Syed Kashif Ali
- Department of Chemistry, College of Science, Jazan University, Jazan 45142, Saudi Arabia
| | | | - Mohd Asim Siddiqui
- Engineering Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
| | - Kondaiah Seku
- Engineering Department, College of Engineering and Technology, University of Technology and Applied Sciences, Shinas 324, Oman
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François M, Lin KS, Rachmadona N, Khoo KS. Advancement of biochar-aided with iron chloride for contaminants removal from wastewater and biogas production: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 874:162437. [PMID: 36858210 DOI: 10.1016/j.scitotenv.2023.162437] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
The use of fossil fuels, emission of greenhouse gases (GHG) into the atmosphere, and waste pose a problem to the environment and public health that urgently needs to be dealt with. Among numerous chemical activating agents that can be added to anaerobic digestion (AD) to enhance nutrient removal and increase the quality and quantity of biomethane, iron chloride (FeCl3) is the one that has the lowest cost and is the most environmentally friendly. This state-of-the-art review aims to revise the influence of FeCl3 on the Brunauer-Emmett-Teller (BET) surface area of biochar and its ability to increase methane (CH4) yield and remove contaminants from biogas and wastewater. The novelty of the study is that FeCl3, an activating agent, can increase the BET surface area of biochar, and its efficacy increases when combined with zinc chloride or phosphoric acid. Regarding the removal of contaminants from wastewater and biogas, FeCl3 has proven to be an effective coagulant, reducing the chemical oxygen demand (COD) of wastewater and hydrogen sulfide in biogas. The performance of FeCl3 depends on the dosage, pH, and feedstock used. Therefore, FeCl3 can increase the BET surface area of biochar and CH4 yield and remove contaminants from wastewater and biogas. More research is needed to investigate the ability of FeCl3 to remove water vapor and carbon dioxide during biogas production while accounting for a set of other parameters, including FeCl3 size.
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Affiliation(s)
- Mathurin François
- Department of Chemical Engineering and Materials Science/Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan; Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan
| | - Kuen-Song Lin
- Department of Chemical Engineering and Materials Science/Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan; Environmental Technology Research Center, Yuan Ze University, Chung-Li District, Taoyuan City 32003, Taiwan.
| | - Nova Rachmadona
- Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia; Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Jatinangor, West Java 45363, Indonesia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan..
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Zhang K, Chang S, Zhang Q, Bai Y, Wang E, Zhang M, Fu Q, Wei L, Yu Y. Heavy metals in influent and effluent from 146 drinking water treatment plants across China: Occurrence, explanatory factors, probabilistic health risk, and removal efficiency. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131003. [PMID: 36857822 DOI: 10.1016/j.jhazmat.2023.131003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/01/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Heavy metals (HMs) in drinking water have drawn worldwide attention due to their risks to public health; however, a systematic assessment of the occurrence of HMs in drinking water treatment plants (DWTPs) at a large geographical scale across China and the removal efficiency, human health risks, and the correlation with environmental factors have yet to be established. Therefore, this study characterised the occurrence patterns of nine conventional dissolved HMs in the influent and effluent water samples from 146 typical DWTPs in seven major river basins across China (which consist of the Yangtze River, the Yellow River, the Songhua River, the Pearl River, the Huaihe River, the Liaohe River and the Haihe River) for the first time and removal efficiency, probabilistic health risks, and the correlation with water quality. According to the findings, a total of eight HMs (beryllium (Be), antimony (Sb), barium (Ba), molybdenum (Mo), nickel (Ni), vanadium (V), cobalt (Co) and titanium (Ti)) were detected, with detection frequencies in influent and effluent water ranging from 2.90 (Mo) to 99.30% (Ba) and 1.40 (Ti) to 97.90% (Ba), respectively. The average concentration range was 0.41 (Be)- 77.36 (Sb) μg/L. Among them, Sb (exceeding standard rate 8%), Ba (2.89%), Ni (21.43%), and V (1.33%) were exceeded the national standard (GB5749-2022). By combining Spearman's results and redundancy analysis, our results revealed a close correlation among pH, turbidity (TURB), potassium permanganate index (CODMn), and total nitrogen (TN) along with the concentration and composition of HMs. In addition, the concentration of HMs in finished water was strongly affected by the concentration of HMs in raw water, as evidenced by the fact that HMs in surface water poses a risk to the quality of finished water. Metal concentration was the primary factor in assessing the health risk of a single metal, and the carcinogenic risk of Ba, Mo, Ni, and Sb should be paid attention to. In DWTPs, the removal efficiencies of various HMs also vary greatly, with an average removal rate ranging from 16.30% to 95.64%. In summary, our findings provide insights into the water quality and health risks caused by HMs in drinking water.
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Affiliation(s)
- Kunfeng Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Elite Engineers School, Harbin Institute of Technology, Harbin 150080, China; School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
| | - Sheng Chang
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Qi Zhang
- School of Forestry, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
| | - Yunsong Bai
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Enrui Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Moli Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Qing Fu
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Drinking Water Source Protection, Research Centre of Lake Environment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Liangliang Wei
- State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yanling Yu
- Elite Engineers School, Harbin Institute of Technology, Harbin 150080, China; School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China.
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45
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Panda BP, Mohanta YK, Parida SP, Pradhan A, Mohanta TK, Patowary K, Wan Mahari WA, Lam SS, Ghfar AA, Guerriero G, Verma M, Sarma H. Metal pollution in freshwater fish: A key indicator of contamination and carcinogenic risk to public health. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121796. [PMID: 37169242 DOI: 10.1016/j.envpol.2023.121796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/11/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
Metals are micropollutants that cannot be degraded by microorganisms and are infiltrated into various environmental media, including both freshwater and marine water. Metals from polluted water are absorbed by many aquatic species, especially fish. Fish is a staple food in the diets of many regions in the world; hence, both the type and concentration of metals accumulated and transferred from contaminated water sources to fish must be determined and assessed. In this study, the heavy metal concentration was determined and assessed in fish collected from freshwater sources via published literature and Estimated of Daily Intake (EDI), Target hazard quotient (THQ), and Carcinogenic Risk (CR) analyses, aiming to examine the metal pollution in freshwater fish. The fish was used as a bioindicator, and Geographic information system (GIS)was sued to map the polluted regions. The results confirmed that Pb was detected in fish sampled at 28 locations, Cr at 24 locations, Cu and Zn at 30 locations, with values Pb detected ranging from 0.0016 mg kg-1 to 44.3 mg kg-1, Cr detected ranging from 0.07 mg kg-1 to 27 mg kg-1, Cu detected ranging from 0.031 mg kg-1 to 35.54 mg kg-1, and Zn detected ranging from 0.242 mg kg-1 to 103.2 mg kg-1. The strongest positive associations were discovered between Cu-Zn (r = 0.74, p < 0.05) and Cr-Zn (r = 0.57, p < 0.05). Spatial distribution maps depicting the consumption of fish as food and its corresponding Pb and Cr intake revealed a higher incidence of both carcinogenic and non-carcinogenic health concerns attributed to Pb and Cr in the region with populations consuming the fish.
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Affiliation(s)
- Bibhu Prasad Panda
- Salim Ali Centre for Ornithology and Natural History, Coimbatore, 641108, Tamil Nadu, India; Environmental Sciences, Department of Chemistry and BBRC, ITER, Siksha' O' Anusandhan (Deemed to Be University), Bhubaneswar, 751030, Odisha, India
| | - Yugal Kishore Mohanta
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi, 793101, Meghalaya, India
| | - Siba Prasad Parida
- Dept. of Zoology, School of Applied Sciences, Centurion University of Technology and Management, Odisha, India
| | - Abanti Pradhan
- Environmental Sciences, Department of Chemistry and BBRC, ITER, Siksha' O' Anusandhan (Deemed to Be University), Bhubaneswar, 751030, Odisha, India
| | - Tapan Kumar Mohanta
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa, 616, Oman
| | - Kaustuvmani Patowary
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi, 793101, Meghalaya, India
| | - Wan Adibah Wan Mahari
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Center for Transdisciplinary Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
| | - Ayman A Ghfar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Giulia Guerriero
- Department of Biology, Federico II University of Naples, Via Cinthia 26, 80126, Napoli, Italy
| | - Meenakshi Verma
- University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Hemen Sarma
- Bioremediation Technology Group, Department of Botany, Bodoland University, Rangalikhata, Deborgaon, Kokrajhar, (BTR), Assam, 783370, India.
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Ye S, Xu M, Sun H, Ni Y, Wang R, Ye R, Wan L, Liu F, Deng X, Wu J. Using deep eutectic solvent dissolved low-value cotton linter based efficient magnetic adsorbents for heavy metal removal. RSC Adv 2023; 13:13592-13603. [PMID: 37152574 PMCID: PMC10155191 DOI: 10.1039/d3ra01248d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023] Open
Abstract
In this study, a novel magnetic bio-adsorbent was synthesized by modifying cotton linter (CL) cellulose with deep eutectic solvents (DESs) and Fe3O4 magnetic nanoparticles. The adsorption capacity of CL, Fe3O4/CL, Fe3O4/CL-oxidation, and Fe3O4/CL-DES for Cu2+ was 11.0, 66.1, 85.7, and 93.1 mg g-1, respectively, under the optimal adsorption conditions of an initial pH value of 6.0, stirring rate of 300 rpm, and a temperature of 30 °C. The presence of Fe3O4 nanoparticles increased the proportion of hydroxyl groups and thus improved the ion-exchange ability of Cu2+. The dissolution of DES significantly decreased fiber crystallinity and increased the number of hydroxyl group (amorphous regions increased), thus improving the chelation reaction of Cu2+, which was favorable for surface adsorption. In addition, we used the Langmuir and Freundlich isothermal models to simulate the adsorption behavior of Fe3O4/CL-DES, and the results indicated that Cu2+ follows a Freundlich isotherm model of multilayer adsorption. The fitting of the adsorption kinetics model indicated that the adsorption process involves multiple adsorption mechanisms and can be described by a quasi-second-order model. These results provide a potential method for the preparation of high-efficiency adsorbents from low-value cotton linter, which has broad application prospects in wastewater treatment.
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Affiliation(s)
- Sihong Ye
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Mingli Xu
- Department of Life Sciences, Anhui Agricultural University Hefei China
| | - Hui Sun
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Ying Ni
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Rui Wang
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Runping Ye
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Nanchang University Nanchang China
| | - Lingzhong Wan
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Fangzhi Liu
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Xiaonan Deng
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
| | - Juan Wu
- Institute of Cotton, Anhui Academy of Agricultural Sciences Hefei China
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Bulin C. Adsorption mechanism and removal efficiency of magnetic graphene oxide-chitosan hybrid on aqueous Zn(II). Int J Biol Macromol 2023; 241:124588. [PMID: 37105255 DOI: 10.1016/j.ijbiomac.2023.124588] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/31/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023]
Abstract
Magnetic architecture incorporating graphene-chitosan has demonstrated encouraging application in wastewater purification. Herein, a ternary hybrid based on Fe3O4-graphene oxide-chitosan (MGOCS) was fabricated and employed as adsorbent to remove aqueous Zn(II). The adsorption mechanism was intensively inspected based on the hard and soft acid base (HSAB) theory. Results present, MGOCS removes 96.73 % of Zn(II) in 38 min, with adsorption quantity 386.92 mg·g-1. Electron transfer and energy lowering determined by the HSAB theory illuminate the plausible adsorption sites in each component of MGOCS: O2- in Fe3O4, -C(=O)NH-, -NH2 in chitosan and -OH in graphene oxide. The exploration was upheld by spectroscopic analyses. Thereby, following adsorption mechanism was proposed. (1) ZnO bond was formed featured by electron donation. (2) The -C(=O)NH- group formed via amidation between graphene oxide and chitosan contributes to Zn(Π) uptake. This work may inspire the development of efficient adsorbent based on magnetic graphene-chitosan for wastewater remediation.
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Affiliation(s)
- Chaoke Bulin
- College of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, PR China.
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48
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Kumar A, Thakur A, Panesar PS. A review on the industrial wastewater with the efficient treatment techniques. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02779-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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49
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Wang W, Gong M, Zhu D, Vakili M, Gholami Z, Jiang H, Zhou S, Qu H. Post-synthetic thiol modification of covalent organic frameworks for mercury(II) removal from water. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2023; 14:100236. [PMID: 36793397 PMCID: PMC9923162 DOI: 10.1016/j.ese.2023.100236] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 06/18/2023]
Abstract
Various materials have been developed for environmental remediation of mercury ion pollution. Among these materials, covalent organic frameworks (COFs) can efficiently adsorb Hg(II) from water. Herein, two thiol-modified COFs (COF-S-SH and COF-OH-SH) were prepared, through the reaction between 2,5-divinylterephthalaldehyde and 1,3,5-tris-(4-aminophenyl)benzene, followed by post-synthetic modification using bis(2-mercaptoethyl) sulfide and dithiothreitol, respectively. The modified COFs showed excellent Hg(II) adsorption abilities with maximum adsorption capacities of 586.3 and 535.5 mg g-1 for COF-S-SH and COF-OH-SH, respectively. The prepared materials showed excellent selective absorbability for Hg(II) against multiple cationic metals in water. Unexpectedly, the experimental data showed that both co-existing toxic anionic diclofenac sodium (DCF) and Hg(II) performed positive effect for capturing another pollutant by these two modified COFs. Thus, a synergistic adsorption mechanism between Hg(II) and DCF on COFs was proposed. Moreover, density functional theory calculations revealed that synergistic adsorption occurred between Hg(II) and DCF, which resulted in a significant reduction in the adsorption system's energy. This work highlights a new direction for application of COFs to simultaneous removal of heavy metals and co-existing organic pollutants from water.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi'ning, Qinghai Province, 810016, China
| | - Minjuan Gong
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi'ning, Qinghai Province, 810016, China
| | - Donghai Zhu
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi'ning, Qinghai Province, 810016, China
| | | | - Zahra Gholami
- ORLEN UniCRE, a.s, Revoluční 1521/84, 400 01, Ústí nad Labem, Czech Republic
| | - Huanhuan Jiang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi'ning, Qinghai Province, 810016, China
| | - Shuangxi Zhou
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi'ning, Qinghai Province, 810016, China
| | - Han Qu
- Key Laboratory of the Three Gorges Region's Eco-Environment, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400044, China
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Raza S, Hameed MU, Ghasali E, Hayat A, Orooji Y, Lin H, Karaman C, Karimi F, Erk N. Algae extract delamination of molybdenum disulfide and surface modification with glycidyl methacrylate and polyaniline for the elimination of metal ions from wastewater. ENVIRONMENTAL RESEARCH 2023; 221:115213. [PMID: 36610540 DOI: 10.1016/j.envres.2023.115213] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/22/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
A special type of two-dimensional (2D) material based conducting polymer was constructed by green synthesis and in-situ polymerization techniques. The 2D Molybdenum Disulfide (MoS2) were first synthesized with the combination of, ammonium tetrathiomolybdate dissolved in 20 mL algae extract under stirring. After stirring for about 2 h, and then finally sulfurization was initiated using sulfur powder in 20 mL of sulfuric solution and stirred for 8 h. The resulting black precipitates of MoS2 were collected by centrifugation at 5000 rpm. Moreover, the prepared MoS2 was functionalized with glycidyl methacrylate (GMA) and form the MoS2@PGMA. Further, the MoS2@PGMA is combined with polyaniline (PANI) to form conducting polymer grafted thin film nanosheets named MoS2@PGMA/PANI with a thickness in micrometer size through grafting method. The prepared materials were characterized by SEM, FTIR, XRD, XPS and EDX techniques. To check the performance of materials the adsorption study was performed. Moreover, the adsorption study toward Cu2+ and Cd2+ showed a tremendous results and the maximum adsorption was 307.7 mg/g and 214.7 mg/g respectively. In addition, the pseudo-first and second order models as well as the adsorption isotherm were investigated using the Langmuir and Freundlich model. The results were best fitted with the pseudo-second order and Langmuir models. The regeneration study was also conducted and MoS2@PGMA/PANI nanosheets can be easily recycled and restored after five successful recycling. The established methodology for preparing the 2D materials and conducting polymer based MoS2@PGMA/PANI nanosheets is expected to be applicable for other multiple applications.
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Affiliation(s)
- Saleem Raza
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Muhammad Usman Hameed
- Department of Chemistry University of Poonch Rawalakot, 12350, Azad Kashmir, Pakistan
| | - Ehsan Ghasali
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Asif Hayat
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Yasin Orooji
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China.
| | - Hongjun Lin
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, Zhejiang, PR China; College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China.
| | - Ceren Karaman
- Department of Electricity and Energy, Akdeniz University, Antalya, 07070, Turkey; School of Engineering, Lebanese American University, Byblos, Lebanon.
| | - Fatemeh Karimi
- Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran.
| | - Nevin Erk
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06560, Ankara, Turkey
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