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Islam MM, Mohana AA, Rahman MA, Rahman M, Naidu R, Rahman MM. A Comprehensive Review of the Current Progress of Chromium Removal Methods from Aqueous Solution. TOXICS 2023; 11:toxics11030252. [PMID: 36977017 PMCID: PMC10053122 DOI: 10.3390/toxics11030252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/01/2023]
Abstract
Chromium (Cr) exists in aqueous solution as trivalent (Cr3+) and hexavalent (Cr6+) forms. Cr3+ is an essential trace element while Cr6+ is a dangerous and carcinogenic element, which is of great concern globally due to its extensive applications in various industrial processes such as textiles, manufacturing of inks, dyes, paints, and pigments, electroplating, stainless steel, leather, tanning, and wood preservation, among others. Cr3+ in wastewater can be transformed into Cr6+ when it enters the environment. Therefore, research on Cr remediation from water has attracted much attention recently. A number of methods such as adsorption, electrochemical treatment, physico-chemical methods, biological removal, and membrane filtration have been devised for efficient Cr removal from water. This review comprehensively demonstrated the Cr removal technologies in the literature to date. The advantages and disadvantages of Cr removal methods were also described. Future research directions are suggested and provide the application of adsorbents for Cr removal from waters.
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Affiliation(s)
- Md. Monjurul Islam
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Anika Amir Mohana
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Md. Aminur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Zonal Laboratory, Department of Public Health Engineering (DPHE), Jashore 7400, Bangladesh
| | - Mahbubur Rahman
- Chittagong University of Engineering and Technology, Faculty of Civil Engineering, Chattogram 4349, Bangladesh
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Department of General Educational Development, Faculty of Science & Information Technology, Daffodil International University, Dhaka 1207, Bangladesh
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Pratap B, Kumar S, Nand S, Azad I, Bharagava RN, Romanholo Ferreira LF, Dutta V. Wastewater generation and treatment by various eco-friendly technologies: Possible health hazards and further reuse for environmental safety. CHEMOSPHERE 2023; 313:137547. [PMID: 36529169 DOI: 10.1016/j.chemosphere.2022.137547] [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: 05/21/2022] [Revised: 12/02/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
The discharge of untreated wastewater as a result of various developmental activities such as urbanization, industrialization and changes in lifestyle poses great threats to aquatic ecosystems as well as humans. Currently, ∼380 billion m3 (380 trillion liters) of wastewater is generated globally every year. Around 70% of freshwater withdrawals are used for agricultural production throughout the world. The wastewater generated through agricultural run-off further pollutes freshwater resources. However, only 24% of the total wastewater generated from households and industries is treated before its disposal in rivers or reused in agriculture. The most problematic contaminants associated with ecological toxicity are heavy metals such as Cd, Cr, Cu, Ni, Zn, Fe, Pb, Hg, As and Mn. One of the most important issues linked with wastewater generation is the residual presence of pathogenic microorganisms which pose potential health hazards to consumers when they enter into the food chain. It is estimated that in India almost USD 600 million (48.60 billion INR) is spent per year to tackle waterborne diseases (WBD). In light of this, immediate action is needed to effectively treat wastewater and develop safer reuse prospects. Various wastewater treatment technologies have been established and they work well to provide an alternative water source to meet the growing demand. The main concern towards treating wastewater is to eliminate inorganic and organic substances and lower the nutrient concentration, total solids, and microbial pathogens to prevent freshwater pollution and health risks.
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Affiliation(s)
- Bhanu Pratap
- Department of Environmental Science (DES), School of Earth and Environmental Sciences (SEES), Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226 025, Utter Pradesh, India.
| | - Saroj Kumar
- Department of Environmental Science (DES), School of Earth and Environmental Sciences (SEES), Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226 025, Utter Pradesh, India
| | - Sampurna Nand
- Environmental Technologies Division, CSIR-National Botanical Research Institute (NBRI), 436, Rana Pratap Marg, Lucknow, 226 001, Utter Pradesh, India
| | - Iqbal Azad
- Department of Chemistry, Integral University, Dasauli, Kursi Road, Lucknow, 226 026, Utter Pradesh, India
| | - Ram Naresh Bharagava
- Department of Environmental Microbiology (DEM), School of Earth and Environmental Sciences (SEES), Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226 025, Utter Pradesh, India
| | - Luiz Fernando Romanholo Ferreira
- Graduate Program in Process Engineering, Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju, Sergipe, Brazil; Institute of Technology and Research (ITP), Tiradentes University (UNIT), Avenida Murilo Dantas 300, Aracaju, Sergipe, Brazil
| | - Venkatesh Dutta
- Department of Environmental Science (DES), School of Earth and Environmental Sciences (SEES), Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226 025, Utter Pradesh, India
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High efficiency removal of heavy metals and organic pollutants from brassware using raw coal: kinetic adsorption and optimized process. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
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Bhat AA, Shakeel A, Rafiq S, Farooq I, Malik AQ, Alghuthami ME, Alharthi S, Qanash H, Alharthy SA. Juglans regia Linn.: A Natural Repository of Vital Phytochemical and Pharmacological Compounds. Life (Basel) 2023; 13:life13020380. [PMID: 36836737 PMCID: PMC9962597 DOI: 10.3390/life13020380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/26/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Juglans regia Linn. is a valuable medicinal plant that possesses the therapeutic potential to treat a wide range of diseases in humans. It has been known to have significant nutritional and curative properties since ancient times, and almost all parts of this plant have been utilized to cure numerous fungal and bacterial disorders. The separation and identification of the active ingredients in J. regia as well as the testing of those active compounds for pharmacological properties are currently of great interest. Recently, the naphthoquinones extracted from walnut have been observed to inhibit the enzymes essential for viral protein synthesis in the SARS-CoV-2. Anticancer characteristics have been observed in the synthetic triazole analogue derivatives of juglone, and the unique modifications in the parent derivative of juglone have paved the way for further synthetic research in this area. Though there are some research articles available on the pharmacological importance of J. regia, a comprehensive review article to summarize these findings is still required. The current review, therefore, abridges the most recent scientific findings about antimicrobial, antioxidant, anti-fungal, and anticancer properties of various discovered and separated chemical compounds from different solvents and different parts of J. regia.
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Affiliation(s)
- Aeyaz Ahmad Bhat
- Department of Chemistry, Lovely Professional University, Phagwara 144411, India
| | - Adnan Shakeel
- Department of Botany, Aligarh Muslim University, Aligarh 202002, India
| | - Sadaf Rafiq
- Division of Floriculture and Landscape Architecture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar 190025, India
| | - Iqra Farooq
- CSIR—Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Azad Quyoom Malik
- Department of Chemistry, Lovely Professional University, Phagwara 144411, India
| | | | - Sarah Alharthi
- Center of Advanced Research in Science and Technology, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Husam Qanash
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha’il, Hail 55476, Saudi Arabia
- Molecular Diagnostics and Personalized Therapeutics Unit, University of Ha’il, Hail 55476, Saudi Arabia
- Correspondence: (H.Q.); (S.A.A.); Tel.: +966-165351752 (H.Q.); +966-555556291 (S.A.A.)
| | - Saif A. Alharthy
- Department of Medical Laboratory Sciences, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
- Toxicology and Forensic Sciences Unit, King Fahd Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah 21589, Saudi Arabia
- Correspondence: (H.Q.); (S.A.A.); Tel.: +966-165351752 (H.Q.); +966-555556291 (S.A.A.)
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Thomas M, Melichová Z, Šuránek M, Kuc J, Więckol-Ryk A, Lochyński P. Removal of Zinc from Concentrated Galvanic Wastewater by Sodium Trithiocarbonate: Process Optimization and Toxicity Assessment. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020546. [PMID: 36677604 PMCID: PMC9860917 DOI: 10.3390/molecules28020546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 01/08/2023]
Abstract
In the present research, the removal of zinc from concentrated galvanic wastewater (pH 3.1, conductivity 20.31 mS/cm, salinity, 10.16 g/L, Chemical Oxygen Demand (COD) 2900 mg O2/L, Total Organic Carbon (TOC) 985 mg/L, zinc (Zn) 1534 mg/L and ethylenediaminetetraacetic acid (EDTA) 70 mg/L) by combination of lime (Ca(OH)2) and sodium trithiocarbonate (Na2CS3) as precipitation agents is studied. Central Composite Design (CCD) and response surface methodology (RSM) were applied for modelling and optimizing the designed wastewater treatment process. Analysis of Variance (ANOVA) and the experimental verification of the model confirmed the consistency of the experimental and estimated data calculated from the model (R2 = 0.9173, R2adj. = 0.8622). The use of Ca(OH)2 and Na2CS3 in the optimal condition calculated from the model (pH = 10.75 ± 0.10, V Na2CS3 dose 0.043 mL/L and time = 5 min) resulted in a decrease in the concentration of Zn in treated wastewater by 99.99%. Other physicochemical parameters of wastewater also improved. Simultaneously, the application of Ca(OH)2 and Na2CS3 reduced the inhibition of activated sludge dehydrogenase from total inhibition (for raw wastewater) to -70% (for treated wastewater). Under the same conditions the phytotoxicity tests revealed that the seed germination index for the raw and treated wastewater increased from 10% to 50% and from 90% to 100% for white mustard (Sinapis alba) and garden cress (Lepidium sativum L.), respectively. The parameters of root and shoot growth showed a statistically significant improvement. Treated wastewater (1:10) showed a stimulating effect (shoot growth) compared to the control sample (GI = -116.7 and -57.9 for S. alba and L. sativum L., respectively). Thus, the use of Na2CS3 is a viable option for the treatment of concentrated galvanic wastewater containing zinc.
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Affiliation(s)
- Maciej Thomas
- Faculty of Environmental Engineering and Energy, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
- Correspondence: (M.T.); (Z.M.)
| | - Zuzana Melichová
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University, Tajovskeho 40, 97401 Banská Bystrica, Slovakia
- Correspondence: (M.T.); (Z.M.)
| | - Matej Šuránek
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University, Tajovskeho 40, 97401 Banská Bystrica, Slovakia
| | - Joanna Kuc
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland
| | - Angelika Więckol-Ryk
- Department of Extraction Technologies, Rockburst and Risk Assessment, Central Mining Institute, 40-166 Katowice, Poland
| | - Paweł Lochyński
- Institute of Environmental Engineering, Wrocław University of Environmental and Life Sciences, 50-365 Wrocław, Poland
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Joshi NC, Rawat B, Kumar P, Kumar N, Upadhyay S, Chetana S, Gururani P, Kimothi S. Sustainable synthetic approach and applications of ZnO/r-GO in the adsorption of toxic Pb2+ and Cr6+ ions. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhou L, Zhong MQ, Wang T, Liu JX, Mei M, Chen S, Li JP. Study on the Pyrolysis and Adsorption Behavior of Activated Carbon Derived from Waste Polyester Textiles with Different Metal Salts. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7112. [PMID: 36295183 PMCID: PMC9605055 DOI: 10.3390/ma15207112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
In this study, the effects of the catalysis of heavy metals on the pyrolysis of waste polyester textiles (WPTs) and the adsorption behaviors of the pyrolysis products of WPTs for Cr(VI) were explored. TG-DTG analysis indicated that the metal ions catalyzed the pyrolysis process by reducing the temperature of the decomposition of WPTs. The surface morphology and pore structure of the carbons were analyzed using SEM and BET. The results demonstrated that Zn-AC possessed the largest specific surface area of 847.87 m2/g. The abundant acidic functional groups on the surface of the activated carbons were proved to be involved in the Cr(VI) adsorption process via FTIR analysis. Cr(VI) adsorption experiments indicated that the adsorption process was more favorable at low pH conditions, and the maximum adsorption capacities of Zn-AC, Fe-AC, and Cu-AC for Cr(VI) were 199.07, 136.25, and 84.47 mg/g, respectively. The FTIR and XPS analyses of the carbons after Cr(VI) adsorption, combined with the adsorption kinetics and isotherm simulations, demonstrated that the adsorption mechanism includes pore filling, an electrostatic effect, a reduction reaction, and complexation. This study showed that metal salts catalyze the pyrolysis processes of WPTs, and the activated carbons derived from waste polyester textiles are promising adsorbents for Cr(VI) removal.
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Affiliation(s)
- Lun Zhou
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Meng-Qi Zhong
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Teng Wang
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jing-Xin Liu
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Meng Mei
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Si Chen
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
| | - Jin-Ping Li
- School of Environmental Engineering, Wuhan Textile University, Wuhan 430073, China
- Engineering Research Centre for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430073, China
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Narayanasamy S, Sundaram V, Sundaram T, Vo DVN. Biosorptive ascendency of plant based biosorbents in removing hexavalent chromium from aqueous solutions - Insights into isotherm and kinetic studies. ENVIRONMENTAL RESEARCH 2022; 210:112902. [PMID: 35167851 DOI: 10.1016/j.envres.2022.112902] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/22/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Chromium is a toxic heavy metal prevalent in higher levels in aqueous matrices owing to industrial applications. Whilst being a key player in industries, the environmental issues caused by Cr(VI) are highly deleterious. Adsorptive remediation is found to be an effective method adopted by researchers in the past decades for Cr(VI) removal from water streams in which variety of naturally available biosorbents have been explored for handling Cr(VI). This review article briefly sketches up the biosorptive potential of plant-based biosorbents used in raw and chemically modified form for the optimum exclusion of Cr(VI) from aqueous sources. Mechanisms and kinetic behavior of the removal process are also discussed. pH of the solution and initial Cr(VI) concentration were found to be the key parameters in Cr removal. The mechanism of Cr removal from aqueous systems was elucidated to be either adsorption or adsorption-coupled-reduction. After precise discussion on various plant-based biosorbents with their maximum adsorption capacities, desorption and regeneration potential, it is perceived that plant-based biosorbents are superior options for Cr(VI) elimination from aqueous streams.
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Affiliation(s)
- Saranya Narayanasamy
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
| | - Vickram Sundaram
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
| | - Thanigaivel Sundaram
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India.
| | - Dai-Viet N Vo
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.
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Guleria A, Kumari G, Lima EC, Ashish DK, Thakur V, Singh K. Removal of inorganic toxic contaminants from wastewater using sustainable biomass: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153689. [PMID: 35143799 DOI: 10.1016/j.scitotenv.2022.153689] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
Lignocellulosic biomass is most abundant, ecofriendly and sustainable material on this green planet which has received great attention due to exhaustion of petroleum reserves and various environmental complications. Due to its abundance and sustainability, it has been opted in number of advanced applications i.e. synthesis of green chemicals, biofuels, paper, packaging, biocomposite and for discharge of toxic contaminants from wastewaters. Utilization of sustainable biomass for removal of toxic pollutants from wastewater is robust technique due to its low-cost and easy availability. In this review, we have summarized removal of inorganic pollutants by sustainable lignocellulosic biomass in their natural as well as in chemically functionalized form. Various techniques for modification of sustainable biomass have been discussed and it was found that modified biomass showed better biosorption ability as compared to natural biomass. We conclude that modified biomass biosorbents are useful for removal of toxic inorganic pollutants to deficient levels. Several modification strategies can improve the qualities of biosorbent, however grafting is the most successful among them, as demonstrated in this work. The numerous grafting methods using a free radical grafting process are also summarized in this review article. This review also gathers studies comparing sorption capabilities with and without modification using modified and unmodified biosorbents. Chemically modified cellulosic biomass is favoured over untreated biomass because it has a higher adsorption efficiency, which is favoured by a large number of reactive binding sites, improved ion-exchange characteristics, and more functional groups available after modification.
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Affiliation(s)
- Ashish Guleria
- Department of Applied Sciences, WIT, Dehradun 248007, India
| | - Garima Kumari
- Department of Biotechnology, Eternal University, Baru Sahib, Sirmaur, Himachal Pradesh 173101, India
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande do Sul (UFRGS), 15003, Brazil
| | - Deepankar Kumar Ashish
- Department of Civil Engineering, Maharaja Agrasen Institute of Technology, Maharaja Agrasen University, Baddi 174103, India.
| | - Vaishali Thakur
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi 174103, India
| | - Kulvinder Singh
- Department of Chemistry, DAV College, Sector 10, Chandigarh 160011, India.
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Pant BD, Neupane D, Paudel DR, Chandra Lohani P, Gautam SK, Pokhrel MR, Poudel BR. Efficient biosorption of hexavalent chromium from water by modified arecanut leaf sheath. Heliyon 2022; 8:e09283. [PMID: 35497041 PMCID: PMC9048133 DOI: 10.1016/j.heliyon.2022.e09283] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/06/2022] [Accepted: 04/12/2022] [Indexed: 11/19/2022] Open
Abstract
In this work, the excision of hexavalent chromium (Cr(VI)) was studied from an aqueous solution using the chemically modified arecanut leaf sheath (CALS) as a novel bio-adsorbent. The as-prepared adsorbent was characterized by using instrumental methods including Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The effect of several factors, including solution pH, contact time, and sorbent dosages were examined to identify the optimum condition for the sorption ability. The optimal pH of Cr(VI) biosorption was 2.0, and equilibrium was reached in 150 min. Adsorption was shown to be pseudo-second-order in kinetic investigations, and the Langmuir isotherm with maximal adsorption efficiency was determined as 109.89 mg/g. The spent biosorbent can be easily regenerated and reused. For the biosorption of oxyanions of chromium, both electrostatic attraction and ligand exchange mechanism play critical roles. From the results, the CALS appears to be a potential low-cost effective sorbent to remove Cr (VI) from water.
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Affiliation(s)
- Bishnu Datt Pant
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44600, Nepal
| | - Deepa Neupane
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44600, Nepal
| | - Dasu Ram Paudel
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44600, Nepal
| | | | - Surendra Kumar Gautam
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44600, Nepal
| | - Megh Raj Pokhrel
- Central Department of Chemistry, Tribhuvan University, Kathmandu 44618, Nepal
| | - Bhoj Raj Poudel
- Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu 44600, Nepal
- Central Department of Chemistry, Tribhuvan University, Kathmandu 44618, Nepal
- Corresponding author.
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Comparison and Optimization of Operational Parameters in Removal of Heavy Metal Ions from Aqueous Solutions by Low-Cost Adsorbents. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1155/2022/3282448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Removal of heavy metal ions such as cadmium, lead, chromium, and iron from industrial wastewater is one of the most critical environmental problems. In this research, natural and low-cost adsorbents like the tangerine peel, bovine gut, tea waste, and sunflower seed hull were used for adsorption of heavy metals, such as chromium and iron, from contaminated solutions. The effects of environmental factors such as contact time, pH, the amount of adsorbent dose, and the initial concentration of metal ions in synthetic solution were investigated to obtain optimal conditions for the adsorption of heavy metal ions. For separation of chromium metal ion from aqueous solution, tea waste, tangerine peel, bovine gut, and sunflower seeds hull showed adsorption capacity of 85%, 51%, 46%, and 34%, respectively, while for the adsorption of iron (III), the adsorption capacities of tea waste, bovine gut, tangerine peel, and sunflower seeds hull were 96%, 96%, and 87%, respectively. The adsorption isotherms were in decent correlation with the Langmuir and Freundlich isotherm models. The adsorption kinetics of iron and chromium has a proper validation with the pseudo-second-order kinetic model. The BET and FTIR analyses were also reported to investigate the adsorption properties. This study suggests these adsorbents as low-cost and economical materials for the adsorption of chromium and iron ions with a high adsorption rate.
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Kebede A, Kedir K, Melak F, Asere TG. Removal of Cr(VI) from Aqueous Solutions Using Biowastes: Tella Residue and Pea ( Pisum sativum) Seed Shell. ScientificWorldJournal 2022; 2022:7554133. [PMID: 35125975 PMCID: PMC8816600 DOI: 10.1155/2022/7554133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/28/2021] [Accepted: 01/07/2022] [Indexed: 12/17/2022] Open
Abstract
The wide use of chromium (Cr) in different industries led to the release of a considerable amount of Cr(VI) into water bodies. Exposure to Cr(VI) can cause diseases in humans and animals. Therefore, low-cost technology for Cr(VI) removal is required. In this study, the biowastes, "Tella" residue (TR) and Pea (Pisum sativum) seed shell (PSS), were evaluated for their Cr(VI) removal efficiency from aqueous solutions. The physicochemical properties of adsorbents were studied, and the adsorbents were further characterized using FTIR and XRD. Batch adsorption experiments have shown that the Cr(VI) uptake was pH-dependent and found to be effective in a wide range of pH values (pH 1 to 10) for PSS. The kinetics of Cr(VI) removal by the adsorbents was well expressed by the pseudo-second-order model. The experimental equilibrium adsorption data fitted well with Freundlich isotherm indicating multilayers adsorption. The estimated Cr(VI) adsorption capacities of TR and PSS were 15.6 mg/g and 8.5 mg/g, respectively. On top of this, the possibility of reusing adsorbents indicates the potential applicability of TR and PSS for the treatment of Cr(VI) contaminated water. Further study on the evaluation of the efficiency of the adsorbents using real chromium-contaminated wastewater is recommended.
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Affiliation(s)
- Abayneh Kebede
- Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia
| | - Kassim Kedir
- Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia
| | - Fekadu Melak
- Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia
| | - Tsegaye Girma Asere
- Chemistry, College of Natural Sciences, Jimma University, P. O. Box 378, Jimma, Ethiopia
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Giri DD, Jha JM, Srivastava N, Shah M, H. Almalki A, F Alkhanani M, Pal DB. Waste seeds of Mangifera indica, Artocarpus heterophyllus, and Schizizium commune as biochar for heavy metal removal from simulated wastewater. BIOMASS CONVERSION AND BIOREFINERY 2022; 13:1-10. [PMID: 35013698 PMCID: PMC8731182 DOI: 10.1007/s13399-021-02078-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 06/14/2023]
Abstract
The threat of arsenic contamination in water is a challenging issue worldwide. Millions of people utilize untreated groundwater having high levels of arsenic in developing countries. Design Expert 6.0.8 has been used to design experiments and carried out statistical analysis for optimization of different parameters. It is of prime importance to develop cheap environment friendly bio-sorbent for protecting health of the poor from ill effects of arsenic. In the present investigation, we prepared bio-sorbent from the solid waste seed biomass of Mangifera indica (M), Artocarpus heterophyllus (JF), and Schizizium commune (JP). The characterization of bio-sorbents has been done by using different techniques namely FTIR and XRD. Arsenic concentration was estimated using ICP and adsorption parameters optimized for pH, adsorbent dose, and initial arsenic concentration. At pH 8.4, kinetics study of arsenic removal was M (94%), JF (93%), and JP (92%) for initial concentration of 2.5 ppm. The adsorption kinetics was well explained by Freundlich model and pseudo-second reaction order. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13399-021-02078-5.
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Affiliation(s)
- Deen Dayal Giri
- Department of Botany, Maharaj Singh College, Saharanpur-247001, Uttar Pradesh, India
| | - Jay Mant Jha
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal- 462003 Madhya Pradesh, India
| | - Neha Srivastava
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005 India
| | - Maulin Shah
- Environmental Technology Limited, Ankeleshwar, Gujrat India
| | - Atiah H. Almalki
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099 Taif- 21944, Saudi Arabia
- Addiction and Neuroscience Research Unit, College of Pharmacy, Taif University, Al-Hawiah, Taif-21944, Saudi Arabia
| | | | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi-835215 Jharkhand India
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Giri DD, Alhazmi A, Mohammad A, Haque S, Srivastava N, Thakur VK, Gupta VK, Pal DB. Lead removal from synthetic wastewater by biosorbents prepared from seeds of Artocarpus Heterophyllus and Syzygium Cumini. CHEMOSPHERE 2022; 287:132016. [PMID: 34523437 DOI: 10.1016/j.chemosphere.2021.132016] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
The present investigation deals with removal of lead (Pb+2) ions from waste water using biosorbent prepared from seeds of Artocarpus heterophyllus (SBAh) and Syzygium cumini (SBSc). Biosorbents surface has been characterized through FT-IR spectroscopy to probe the presence of functional groups. Response surface methodology enabled optimized conditions (Pb+2 concentration 2 μg/mL, pH 5.8 and bioadsorbent dose 60 mg) resulted in Pb+2 removal ~96% for SBAh and ~93% for SBSc at agitation speed 300 rpm. The adsorption capacity has been found to be 4.93 mg/g for SBAh and 3.95 mg/g for SBSc after 70 min. At optimal experimental conditions, kinetics of biosorption was explained well by inter-particle diffusion model for SBAh (R2 = 0.99) whereas Elovich model best fitted for SBSc (R2 = 0.98). Further, both the biosorbents followed Temkin adsorption isotherm model.
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Affiliation(s)
- Deen Dayal Giri
- Department of Botany, Maharaj Singh College, Saharanpur, Uttar Pradesh, 247001, India
| | - Alaa Alhazmi
- Medical Laboratory Technology Department Jazan University, Jazan, Saudi Arabia; SMIRES for Consultation in Specialized Medical Laboratories, Jazan University, Jazan, Saudi Arabia
| | - Akbar Mohammad
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk, 38541, South Korea
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, 45142, Saudi Arabia; Bursa Uludağ University Faculty of Medicine, Görükle Campus, 16059, Nilüfer, Bursa, Turkey
| | - Neha Srivastava
- Department of Chemical Engineering, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh, 221005, India
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; School of Engineering, University of Petroleum & Energy Studies (UPES), Dehradun, Uttarakhand, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh, EH9 3JG, UK.
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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Özkalkan H, Saygili Canlidinç R. Investigation of the Conditions for Preconcentration of Cadmium Ions by Solid Phase Extraction Method Using Modified Juglans regia L. Shells. J AOAC Int 2021; 104:1246-1254. [PMID: 33757120 DOI: 10.1093/jaoacint/qsab042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/17/2020] [Accepted: 03/15/2021] [Indexed: 12/07/2022]
Abstract
BACKGROUND Juglans regia L. shells as agricultural waste can be considered as alternative sorbents to minimize the problems associated with heavy metal pollution. OBJECTIVE In this study, J. regia shells (JRS) and JRS modified with hydrazine hydrate (JRS-HH) were used as sorbents and compared for the preconcentration of Cd(II) ions from aqueous solution. METHODS For the characterization of sorbents, scanning electron microscopy and energy dispersive X-ray (SEM/EDX) analysis and Fourier transform infrared (FTIR) spectroscopy were used. For preconcentration, the solid phase extraction (SPE) technique was used. Preconcentration studies were performed by column method and pH, eluent type and concentration, sample volume, flow rate, and interfering ions effect were studied to determine the optimum column parameters. RESULTS The limit of detection (LOD) of the sorbents (JRS and JRS-HH) are 0.31 and 0.18 µg/L, respectively. According to the Langmuir isotherm model for both sorbents, for JRS KL = 0.030 L/mg, R2 = 0.992, 0.016 L/mg, and for JRS-HH KL = 0.016 L/mg, R2 = 0.998 and maximum adsorption capacities of the sorbents were found to be as 29.6 and 65.7 mg/g, respectively. The mean recoveries and RSD values at a 95% confidence level (N = 6) for Cd(II) were 100.9% and 3.42, and 100.6% and 3.79, for the JRS and JRS-HH sorbents, respectively. CONCLUSIONS Using this method good results were obtained when compared with those in the literature and the proposed method was successfully applied to the analysis of the certificated reference material (NIST 1640). HIGHLIGHTS JRS are an effective and inexpensive sorbent for the preconcentration of metal ions when modified. Thus, low-cost agricultural wastes are both recovered and have an economic value.
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Affiliation(s)
- Hüsna Özkalkan
- Kütahya Dumlupınar University, Science and Art Faculty, Department of Chemistry, 43100 Kütahya, Turkey
| | - Rukiye Saygili Canlidinç
- Kütahya Dumlupınar University, Science and Art Faculty, Department of Chemistry, 43100 Kütahya, Turkey
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Altun T, Ecevit H, Kar Y, Çiftçi B. Adsorption of Cr(VI) onto cross-linked chitosan-almond shell biochars: equilibrium, kinetic, and thermodynamic studies. J Anal Sci Technol 2021. [DOI: 10.1186/s40543-021-00288-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AbstractIn this study, to remove Cr(VI) from the solution environment by adsorption, the almond shell was pyrolyzed at 400 and 500 °C and turned into biochar (ASC400 and ASC500) and composite adsorbents were obtained by coating these biochars with chitosan (Ch-ASC400 and Ch-ASC500). The resulting biochars and composite adsorbents were characterized using Fourier transform infrared (FTIR) spectroscopy; Brunauer, Emmett, and Teller (BET) surface area; scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDX); and the point of zero charge pH (pHpzc) analyses. The parameters affecting the adsorption were examined with batch adsorption experiments and the optimum parameters for the efficient adsorption of Cr(VI) in 55 mg L−1 solution were determined as follows; adsorbent dosages: 5 g L−1 for biochars, 1.5 g L−1 for composite adsorbents, contact time: 120 min, pH: 1.5. It was seen that the temperature did not affect the adsorption much. Under optimum conditions, Cr(VI) adsorption capacities of ASC400, ASC500, Ch-ASC400, and Ch-ASC500 adsorbents are 11.33, 11.58, 37.48, and 36.65 mg g−1, respectively, and their adsorption percentages are 95.2%, 97.5%, 94.3%, and 94.0%, respectively. Adsorption data were applied to Langmuir, Freundlich, Scatchard, Dubinin-Radushkevic, and Temkin isotherms and pseudo-first-order kinetic model, pseudo-second-order kinetic model, intra-particle diffusion model, and film diffusion model. The adsorption data fitted well to the Langmuir isotherm and pseudo-second-order kinetic models. From these results, it was determined that chemical adsorption is the dominant mechanism. Also, both intra-particle diffusion and film diffusion is effective in the adsorption rate. For all adsorbents, the Langmuir isotherm proved to be the most appropriate model for adsorption. The maximum monolayer adsorption capacities calculated from this model are 24.15 mg g−1, 27.38 mg g−1, 54.95 mg g−1, and 87.86 mg g−1 for ASC400, ASC500, Ch-ASC400, and Ch-ASC500, respectively. The enthalpy change, entropy change, and free energy changes during the adsorption process were calculated and the adsorption was also examined thermodynamically. As a result, adsorption occurs spontaneously for all adsorbents.
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Katha PS, Ahmed Z, Alam R, Saha B, Acharjee A, Rahman MS. Efficiency analysis of eggshell and tea waste as Low cost adsorbents for Cr removal from wastewater sample. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1016/j.sajce.2021.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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18
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Eco-Friendly Adsorbent from Waste of Mint: Application for the Removal of Hexavalent Chromium. J CHEM-NY 2021. [DOI: 10.1155/2021/8848964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A serious environmental disaster is looming on the horizon due to the indiscriminate release of heavy metals into the soil and wastewater from human industrial practices. In this study, waste mint (WM) was used to remove chromium(VI) from aqueous solution using batch experiments. The adsorbent material (WM) was characterized using scanning electron microscopy coupled with energy dispersive analysis of X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermal gravimetric analysis (TGA). The adsorption parameters optimized were as follows: pH solution (2–11), initial concentration of Cr(VI) (10–50 mg/L), adsorbent dose (0.1–10 g/L), and temperature conditions (298 K, 308 K, and 318 K). The experimental data fitted well to the fractional power kinetic model (0.97≤R2≤ 0.99) and Langmuir isotherm (R2 = 0.984) with a maximum adsorption capacity Qmax = 172.41 mg/g. The thermodynamic parameters for Cr(VI) sorption were also calculated, confirming that the adsorption process was spontaneous and accompanied by an exothermic adsorption (−4.83 ≤ ΔG ≤ −3.22 kJ/mol and ΔH = −28.93 kJ/mol). The Cr(VI) removal percentage was within the range of 41–98%, and the highest removal was noted at pH = 2. The results of the present study suggest that WM is a potential low-cost adsorbent for the removal of chromium(VI) from aqueous solutions.
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Pertile E, Dvorský T, Václavík V, Heviánková S. Use of Different Types of Biosorbents to Remove Cr (VI) from Aqueous Solution. Life (Basel) 2021; 11:life11030240. [PMID: 33799430 PMCID: PMC8000416 DOI: 10.3390/life11030240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 01/03/2023] Open
Abstract
This article summarizes the results of a research study that was focused on the possibility of removing Cr (VI) from aqueous solution, using low-cost waste biomaterial in a batch mode. A set of seven biosorbents was used: Fomitopsis pinicola, a mixture of cones, peach stones, apricot stones, Juglans regia shells, orange peels, and Merino sheep wool. Three grain fractions (fr. 1/2, fr. 0.5/1.0, and fr. 0/0.5 mm) of biosorbents were studied. The aim was to find the most suitable biosorbent that can be tested with real samples. The influence of other factors on the course of biosorption was studied as well (chemical activation of the biosorbent, pH value, rotation speed during mixing, temperature, and the influence of biosorbent concentration). The use of chemical activation and adjustment of the pH to 1.1 to 2.0 make it possible to increase their sorption capacity and, for some biosorbents, to shorten the exposure times. Two kinetic models were used for the analysis of the experimental data, to explain the mechanism of adsorption and its possible speed control steps: pseudo-first and pseudo-second-order. The pseudo-second-order kinetic model seems to be the most suitable for the description of the experimental data. The thermodynamic parameters suggest that the biosorption was endothermic and spontaneous. In the biosorption equilibrium study, the adsorption data were described by using Langmuir and Freundlich adsorption isotherms. The Langmuir model was applicable to describe the adsorption data of all biosorbents. Both models are suitable for chemically treated sheep fleece and peach stones.
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Affiliation(s)
- Eva Pertile
- Correspondence: (E.P.); (T.D.); Tel.: +420-597-325-188 (E.P.); +420-597-323-593 (T.D.)
| | - Tomáš Dvorský
- Correspondence: (E.P.); (T.D.); Tel.: +420-597-325-188 (E.P.); +420-597-323-593 (T.D.)
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20
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Krishnani KK, Choudhary K, Boddu VM, Moon DH, Meng X. Heavy metals biosorption mechanism of partially delignified products derived from mango (Mangifera indica) and guava (Psidium guiag) barks. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-12874-1. [PMID: 33638079 DOI: 10.1007/s11356-021-12874-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
This paper evaluates the biosorption of toxic metal ions onto the bioadsorbents derived from mango (Mangifera indica) and guava (Psidium guiag) barks and their metal fixation mechanisms. Maximum metal biosorption capacities of the mango bioadsorbent were found in the following increasing order (mg/g): Hg (16.24) < Cu (22.24) < Cd (25.86) < Pb (60.85). Maximum metal biosorption capacities of guava bioadsorbent follow similar order (mg/g): Hg (21.48) < Cu (30.36) < Cd (32.54) < Pb (70.25), but with slightly higher adsorption capacities. The removal mechanisms of heavy metals using bioadsorbents have been ascertained by studying their surface properties and functional groups using various spectrometric, spectroscopic, and microscopic methods. Whewellite (C2CaO4·H2O) has been identified in bioadsorbents based on the characterization of their surface properties using X-ray techniques (XPS and XRD), facilitating the ion exchange of metal ions with Ca2+ bonded with carboxylate moieties. For both the bioadsorbents, the Pb2+, Cu2+, and Cd2+ are biosorbed completely by ion exchange with Ca2+ (89-94%) and Mg2+ (7-12%), whereas Hg2+ is biosorbed partially (57-66%) by ion exchange with Ca2+ (38-42%) and Mg2+ (19-24%) due to involvement of other cations in the ion exchange processes. Bioadsorbents contain lignin which act as electron donor and reduced Cr(VI) into Cr(III) (29.87 and 37.25 mg/g) in acidic medium. Anionic Cr(VI) was not adsorbed onto bioadsorbents at higher pH due to their electrostatic repulsion with negatively charged carboxylic functional groups.
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Affiliation(s)
- Kishore Kumar Krishnani
- ICAR-Central Institute of Fisheries Education (Deemed University), Panch Marg, Off Yari Road, Versova, Andheri (W), Mumbai, 400061, India.
| | - Khushboo Choudhary
- ICAR-National Institute of Abiotic Stress Management, Baramati, Pune, 413115, India
| | - Veera Mallu Boddu
- Plant Polymer Research Unit (PPL), National Center for Agriculture Utilization Research (NCAUR), Agricultural Research Service, US Department of Agriculture, ARS/USDA, 1815N University St, Peoria, IL, 61604, USA
| | - Deok Hyun Moon
- Department of Environmental Engineering, Chosun University, Gwangju, 61452, Republic of Korea
| | - Xiaoguang Meng
- CEE, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
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21
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Mbarki F, Othmani A, Kesraoui A, Seffen M. Coupling Alternating Current and Biosorption for the Removal of Hexavalent Chromium. Chem Eng Technol 2021. [DOI: 10.1002/ceat.202000398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fatma Mbarki
- Sousse University High School of Sciences and Technology of Hamam Sousse, Laboratory of Energy and Materials (LaBEM) BP4011 Hamam Sousse Tunisia
- Monastir University Faculty of Science of Monastir BP5019 Monastir Tunisia
| | - Amina Othmani
- Sousse University High School of Sciences and Technology of Hamam Sousse, Laboratory of Energy and Materials (LaBEM) BP4011 Hamam Sousse Tunisia
- Monastir University Faculty of Science of Monastir BP5019 Monastir Tunisia
| | - Aida Kesraoui
- Sousse University High School of Sciences and Technology of Hamam Sousse, Laboratory of Energy and Materials (LaBEM) BP4011 Hamam Sousse Tunisia
| | - Mongi Seffen
- Sousse University High School of Sciences and Technology of Hamam Sousse, Laboratory of Energy and Materials (LaBEM) BP4011 Hamam Sousse Tunisia
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Kumari B, Tiwary RK, Yadav M, Singh KMP. Nonlinear regression analysis and response surface modeling of Cr (VI) removal from synthetic wastewater by an agro-waste Cocos Nucifera: Box-Behnken Design (BBD). INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:791-808. [PMID: 33349031 DOI: 10.1080/15226514.2020.1858399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study mixture of coconut shell and coir was used for Cr (VI) removal from synthetic wastewater and statistical tool Response Surface Modeling (RSM) was applied to optimize process parameters. The solution pH (2-6), reaction time (20-100 minutes) and adsorbent quantity (0.03-0.2 g) was optimized to find the maximum response of Cr (VI) removal using statistical Box-Behnken design (BBD) software. The equilibrium data obtained by the batch experiment were analyzed by ANOVA and found fitted in a second-order polynomial equation through multiple regression analysis. The optimum value of pH, adsorbent quantity and reaction time for 99% of Cr(VI) was found as 2, 0.1 g and 100 minutes, respectively. By using non-linear regression method it was found that Freundlich isotherm and Pseudo-second-order kinetic with high correlation coefficient (R2), low Chi-square (χ2) and root mean squares errors (RMSE), best describe the adsorption of Cr (VI) on mixture of coconut shell and coir (MCSC) surface. Positive enthalpy (ΔH°) and negative Gibbs free energy (ΔGo) values confirm the endothermic and spontaneous nature of adsorption process. Pre and post adsorption phenomenon was confirmed by characterization of adsorbent using AFM, FTIR, SEM, and EDX analysis. The adsorbent MCSC has regenerative property and can be reused 3-4 times after treating with alkaline medium (0.2 N NaOH) and offered more than 60% removal of Cr (VI) at the fourth cycle. It can be inferred based on this study that MCSC is an effective adsorbent for Cr (VI) removal and can be used on an industrial scale for social and environmental benefit. Novelty statement An agriculture waste mixture of coconut shell and coir (MCSC) without the addition of any chemical reagent, was used for Cr(VI) removal. As per literature survey and best of our knowledge, the adsorbent MCSC has not been reported for Cr (VI) removal. In the previous study, authors reported either coconut coir pith or coconut shell or coconut charcoal as adsorbent for Cr (VI) removal. The adsorbent MCSC is efficient even at very low doses (0.1 g) as compared to the reported adsorbent.
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Affiliation(s)
- Binu Kumari
- Department of NREM, CSIR-CIMFR, Dhanbad, India
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23
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Chakraborty R, Asthana A, Singh AK, Verma R, Sankarasubramanian S, Yadav S, Carabineiro SAC, Susan MABH. Chicken feathers derived materials for the removal of chromium from aqueous solutions: kinetics, isotherms, thermodynamics and regeneration studies. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2020.1842760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Rupa Chakraborty
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
| | - Anupama Asthana
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
| | - Ajaya Kumar Singh
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
| | - Renu Verma
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
| | - Sreevidya Sankarasubramanian
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
- Department of Chemistry, Kalyan PG College, Bhilai Nagar, Durg, Chhattisgarh, India
| | - Sushma Yadav
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg, Chhattisgarh, India
| | - Sónia A. C. Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, Caparica, Portugal
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Ali I, Afshinb S, Poureshgh Y, Azari A, Rashtbari Y, Feizizadeh A, Hamzezadeh A, Fazlzadeh M. Green preparation of activated carbon from pomegranate peel coated with zero-valent iron nanoparticles (nZVI) and isotherm and kinetic studies of amoxicillin removal in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:36732-36743. [PMID: 32564327 DOI: 10.1007/s11356-020-09310-1] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/13/2020] [Indexed: 05/25/2023]
Abstract
In present research, the activated carbon was prepared by a green approach from pomegranate peel coated with zero-valent iron nanoparticles (AC-nZVI) and developed as adsorbent for the removal of amoxicillin from aqueous solution. The physicochemical properties of the AC-nZVI were investigated using XRD, FTIR, and FESEM techniques. The optimal values of the parameters for the best efficiency (97.9%) were amoxicillin concentration of 10 mg/L, adsorbent dose of 1.5 g/L, time of 30 min, and pH of 5, respectively. The adsorption equilibrium and kinetic data were fitted with the Langmuir monolayer isotherm model (qmax 40.282 mg/g, R2 0. 0.999) and pseudo-first order kinetics (R2 0.961). The reusability of the adsorbent also revealed that the adsorption efficiency decreased from 83.54 to 50.79% after five consecutive repetitions. Overall, taking into account the excellent efficiency, availability, environmental friendliness, and good regeneration, AC-nZVI can be introduced as a promising absorbent for amoxicillin from aquatic environments.
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Affiliation(s)
- Imran Ali
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi, India.
| | - Shirin Afshinb
- Students Research Committee, Faculty of Health, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Yousef Poureshgh
- Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ali Azari
- Department of Environmental Health Engineering, School of Public Health, Kashan University of Medical Sciences, Kashan, Iran
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Yousef Rashtbari
- Students Research Committee, Faculty of Health, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Abolfazl Feizizadeh
- Mechanical Engineering Department, MSc of Engineering of Micro and Nano Electromechanical Systems, Urmia University, Urmia, Iran
| | - Asghar Hamzezadeh
- Students Research Committee, Faculty of Health, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mehdi Fazlzadeh
- Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Tao F, Wang Y, Zhao Z, Liu X, Zhang G, Li C, Wang Z, Huo Q. Effective removal of Cr(VI) in aqueous solutions using Caulis lonicerae residue fermented by Phanerochaete chrysosporium. Prep Biochem Biotechnol 2020; 51:842-851. [DOI: 10.1080/10826068.2020.1805623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Fengyun Tao
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing, People’s Republic of China
| | - Yue Wang
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
| | - Zhanhong Zhao
- Beijing Union University, Beijing, People’s Republic of China
| | - Xiaojing Liu
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
| | - Gaoyu Zhang
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
| | - Chi Li
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
| | - Zhaoxuan Wang
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
| | - Qing Huo
- College of Health and Environment, Beijing Union University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing, People’s Republic of China
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26
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Su Q, Su Z, Xie W, Tian C, Su X, Lin Z. Preparation of 2D nitrogen-doped magnetic Fe 3C/C by in-situ self-assembled double-template method for enhanced removal of Cr(VI). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114374. [PMID: 32298933 DOI: 10.1016/j.envpol.2020.114374] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/02/2020] [Accepted: 03/12/2020] [Indexed: 05/22/2023]
Abstract
Porous carbon, which can be functionalized, is considered as a potential carbon material. Herein, two-dimensional (2D) nitrogen-doped magnetic Fe3C/C (NMC) was prepared by a simple carbonization method using potassium humate (HA-K) as raw material. Remarkably, two templates, g-C3N4 and KCl, were formed in situ during the carbonization process, which provide the necessary conditions for the formation of 2D NMC. The NMC was comprehensively studied by different characterization methods. The results show that NMC has a large surface area and mesoporous structure. The prepared NMC-0.50 was used to test the removal performance of Cr(VI). The effects of pH value, coexisting ions and time on Cr(VI) removal performance were investigated, and the adsorption kinetics, isotherm and thermodynamics were studied. The results showed that the adsorption isotherm model of NMC-50 accorded with the Langmuir model, and the maximum adsorption capacity was 423.73 mg g-1. The reaction mechanism of Cr(VI) is adsorption and redox reaction. In addition, NMC-0.50 exhibit high selectivity, separability and regeneration performance. A convenient means for the synthesis of NMC was designed in this work, and demonstrate that NMC has practical value as an adsorbent.
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Affiliation(s)
- Qiaohong Su
- School of Environment and Energy, The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), South China University of Technology, Guangzhou, Guangdong, 510006, China; College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, Xinjiang, China
| | - Zhi Su
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, Xinjiang, China
| | - Wenyu Xie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, China
| | - Chen Tian
- School of Environment and Energy, The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), South China University of Technology, Guangzhou, Guangdong, 510006, China
| | - Xintai Su
- School of Environment and Energy, The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), South China University of Technology, Guangzhou, Guangdong, 510006, China.
| | - Zhang Lin
- School of Environment and Energy, The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), South China University of Technology, Guangzhou, Guangdong, 510006, China
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Gallardo K, Castillo R, Mancilla N, Remonsellez F. Biosorption of Rare-Earth Elements From Aqueous Solutions Using Walnut Shell. FRONTIERS IN CHEMICAL ENGINEERING 2020. [DOI: 10.3389/fceng.2020.00004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Uddin MK, Nasar A. Walnut shell powder as a low-cost adsorbent for methylene blue dye: isotherm, kinetics, thermodynamic, desorption and response surface methodology examinations. Sci Rep 2020; 10:7983. [PMID: 32409753 PMCID: PMC7224211 DOI: 10.1038/s41598-020-64745-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 04/02/2020] [Indexed: 11/30/2022] Open
Abstract
The low cost, eco-friendly and potential biomass, i.e. walnut (Juglans regia) shell powder was deployed for the removal of toxic methylene blue dye from contaminated water solution. The important characterization of the waste material was conducted by using several techniques, i.e. Scanning electron microscope, Fourier-transform infrared spectroscopy, Energy-dispersive X-ray spectroscopy, X-ray powder diffraction, Brunauer-Emmett-Teller surface area analysis, and Thermogravimetric analysis. The marked impact of various operating conditions, i.e. dose, concentration, time, pH and temperature on the adsorption process was investigated. Increasing pH resulted in an increase of percent dye adsorption, and the adsorption mechanism was occurred by electrostatic attraction between negative adsorbent surface and positive dye molecules. The equilibrium data suited with Langmuir isotherm model while the adsorption practice followed the pseudo-second-order kinetic model. Higher temperature reduced the adsorption of dye molecules. The adsorption process was spontaneous, exothermic and chemical. The critical statistical analysis of the experimental results was directed by forming the design of the experiment, which was further, optimized by ANOVA, 3D and perturbation plots. The error and predicted values of both the studied responses as derived from the statistical model showed the agreeable results. 0.1 N HCl was found to be effective in complete desorption. The results are very practical and prove the effectiveness of walnut shell powder in the usage of decolorization for methylene blue.
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Affiliation(s)
- Mohammad Kashif Uddin
- Basic Engineering Sciences Department, College of Engineering, Majmaah University, Al-Majmaah, 11952, Saudi Arabia.,Department of Chemistry, College of Science, Majmaah University, Zulfi Campus, Al-Zulfi, 11932, Saudi Arabia
| | - Abu Nasar
- Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, 202002, India.
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Singh S, Kumar V, Datta S, Dhanjal DS, Sharma K, Samuel J, Singh J. Current advancement and future prospect of biosorbents for bioremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:135895. [PMID: 31884296 DOI: 10.1016/j.scitotenv.2019.135895] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/02/2019] [Accepted: 12/01/2019] [Indexed: 05/12/2023]
Abstract
The increasing use of heavy metals, synthetic dyes and pesticides is a major environmental concern. Wastewaters containing heavy metals and dyes, extensively released from small and large scale industries enter excessively into food chains resulting in mutagenesis, carcinogenicity and serious health impairments in living systems. The arrays of technologies are implemented to date to remediate both inorganic and organic contaminants from wastewaters. Among which, adsorption is the most attractive method as it employs eco-friendly, sustainable and cost-effective biomaterials. Use of bioadsorbents is advantageous over the conventional adsorbents. Clay, chitin, peat, microbial biomass and agricultural wastes are commonly used bioadsorbants. These bioadsorbents are extensively used for elimination of dyes, heavy metals, adsorption of toxic industrial effluents, removal of fertilizers/pesticides, atmospheric pollutants and nuclear waste from the environment. The current review presents state of the art knowledge on various types of biosorbents, their uses, and mechanism of action. Various strategies to enhance the efficiency of bioadsorbents and physicochemical conditions to remediate dyes and heavy metals from waste streams are also incorporated in this review. Use of nano-bioadsorbents in industries to minimize the hazardous effect of solid and liquid waste has also been discussed.
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Affiliation(s)
- Simranjeet Singh
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India; Punjab Biotechnology Incubators, Mohali 160059, Punjab, India; Regional Advanced Water Testing Laboratory, Mohali 160059, Punjab, India
| | - Vijay Kumar
- Regional Ayurveda Research Institute for Drug Development, Gwalior 474009, MP, India
| | - Shivika Datta
- Department of Zoology, Doaba College Jalandhar, Punjab, India
| | - Daljeet Singh Dhanjal
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Kankan Sharma
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Jastin Samuel
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India; Waste Valorization Research Lab, Lovely Professional University, Phagwara - 144411, Punjab, India
| | - Joginder Singh
- Department of Biotechnology, Lovely Professional University, Phagwara 144411, Punjab, India.
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Ugwu EI, Agunwamba JC. A review on the applicability of activated carbon derived from plant biomass in adsorption of chromium, copper, and zinc from industrial wastewater. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:240. [PMID: 32185514 DOI: 10.1007/s10661-020-8162-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/18/2020] [Indexed: 05/26/2023]
Abstract
Metal ion contamination in wastewater is an issue of global concern. The conventional methods of heavy metal removal from wastewater have some drawbacks, ranging from generation of sludge to high cost of removal. Adsorption technique for copper(II), zinc(II), and chromium(VI) using activated carbon has been found efficient. However, it is not economical on a large scale. This, therefore, necessitates the search for economical and readily available plant biomass-based activated carbons for the sequestration of the metal ions. This review presents the state of the art on the adsorption of copper(II), zinc(II), and chromium(VI) from industrial wastewater. Based on the literature review presented, the groundnut husk and corncob based activated carbons were found to possess the maximum adsorption capacities for copper(II), zinc(II), and chromium(VI) removal, when compared with the other plant biomass-based activated carbons. The high values of the adsorption capacities obtained were as a result of the isotherms and pH of the adsorbent as well as the initial concentration of the metal solutions. From the review, the equilibrium data fitted better with Langmuir and Freundlich isotherms than with other isotherms. Research gaps were identified which include a need to investigate the kinetic and the thermodynamic behaviors of the metal ions onto the studied adsorbents. Furthermore, a comparative analysis of the three types of activation of the adsorbents should be investigated using single and multi-metals. The optimization of particle size, contact time, temperature, initial concentration, and adsorbent dosage for adsorption of copper(II), zinc(II), and chromium(VI) onto the studied adsorbents using response surface methodology is equally required.
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Affiliation(s)
- Emmanuel Ikechukwu Ugwu
- Department of Civil Engineering, College of Engineering and Engineering Technology, Michael Okpara University of Agriculture Umudike, P.M.B. 7267, Umuahia, Abia state, Nigeria.
| | - Jonah Chukwuemeka Agunwamba
- Department of Civil Engineering, Faculty of Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria
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31
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Vilardi G, Bubbico R, Di Palma L, Verdone N. Nitrate green removal by fixed-bed columns packed with waste biomass: Modelling and friction parameter estimation. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2019.12.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Saini S, Katnoria JK, Kaur I. Surface modification of Dendrocalamus strictus charcoal powder using nitrilotriacetic acid as a chelating agent and its application for removal of copper(II) from aqueous solutions. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2019.1709079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Saraswati Saini
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab,India
| | - Jatinder Kaur Katnoria
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab,India
| | - Inderpreet Kaur
- Department of Chemistry, Centre for Advanced Studies, Guru Nanak Dev University, Amritsar, Punjab, India
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Jahanban-Esfahlan A, Jahanban-Esfahlan R, Tabibiazar M, Roufegarinejad L, Amarowicz R. Recent advances in the use of walnut (Juglans regia L.) shell as a valuable plant-based bio-sorbent for the removal of hazardous materials. RSC Adv 2020; 10:7026-7047. [PMID: 35493920 PMCID: PMC9049835 DOI: 10.1039/c9ra10084a] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/03/2020] [Indexed: 12/11/2022] Open
Abstract
The effective use of agricultural by-products is definitely a major challenge in waste management. In the walnut fruit processing industry, large amounts of shells are produced as agricultural by-products and discarded or burned produced as fuel. Walnut (Juglans regia L.) is a valuable tree nut in the Juglandaceae family. The fruit is composed of four main parts: the kernel, the skin, the shell, and the husk. The importance of walnuts is mostly related to theirs valuable kernels. However, their shells are currently experiencing as much interest as their kernels due to the beneficial effects of the shells. In the past several years, walnut shell (WS) has been widely explored as a naturally inert plant-based biosorbent. In this review, we first highlight recent scientific literature regarding the development of adsorbents from WS in the form of carbon-based materials including unmodified/modified WS, and activated carbons (ACs). Next, we discuss the potential applications of WS-derived by-products as natural yet effective adsorbents for the removal of various hazardous materials including heavy metals (HMs), synthetic industrial dyes, and harmful chemicals. The effective use of agricultural by-products is definitely a major challenge in waste management.![]()
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Affiliation(s)
- Ali Jahanban-Esfahlan
- Nutrition Research Center
- Tabriz University of Medical Sciences
- Tabriz
- Iran
- Student Research Committee
| | - Rana Jahanban-Esfahlan
- Drug Applied Research Center
- Tabriz University of Medical Sciences
- Tabriz
- Iran
- Department of Medical Biotechnology
| | - Mahnaz Tabibiazar
- Biotechnology Research Center
- Tabriz University of Medical Sciences
- Tabriz
- Iran
- Department of Food Science
| | | | - Ryszard Amarowicz
- Department of Food Science
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences
- Olsztyn
- Poland
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Mansour RA, Atef R, Elazaby RR, Zaatout AA. Experimental study on the adsorption of Cr +6 and Ni +2 from aqueous solution using low-cost natural material. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 22:508-517. [PMID: 31690086 DOI: 10.1080/15226514.2019.1683716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The adsorption behavior of Chromium (Cr)(VI) and Nickel (Ni)(II) from aqueous solution onto date pits (DPs) was investigated as a function of initial concentration (5-100 mg/L), contact time (0-70 min), adsorbent dose (2-20 g/L), pH (1-9), and temperature (25-95[Formula: see text] Equilibrium took place after 45 and 55 min for Cr(VI) and Ni(II), respectively. The removal efficiency reached 100% and 95% for Cr(VI) and Ni(II), respectively, at optimal conditions. Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analyses were performed to characterize the adsorbent. The Langmuir, Freundlich, Tempkin, and Dubinin-Radushkevich (D-R) models were applied to describe the equilibrium isotherms. The values of the free energy (ΔG), enthalpy (ΔH), and entropy (ΔS) were 34.599 kJ/mol, 17.5736 kJ/mol K, and -51.58 kJ/mol K, respectively, at pH 3 for Cr(VI) and -25.283 kJ/mol, -14.8525 kJ/mol K, and 31.31 kJ/mol K, respectively, at pH 6 for Ni(II). Kinetics of the adsorption was analyzed. The pseudo-first-order was suitable for Cr(VI) at R2 = 0.9977, and the pseudo-second-order model was suitable for the Ni(II) at R2 = 0.999. The maximum adsorption capacities were 110.02 mg Cr(VI)/g and 10.1 mg Ni(II)/g. A single-stage batch adsorber was designed for the adsorption of Cr(VI) and Ni(II) by DP based on the optimum isotherm.
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Affiliation(s)
- R A Mansour
- Department of Chemical Engineering, Higher Institute of Engineering and Technology, New Damietta, Egypt
| | - Riham Atef
- Department of Chemical Engineering, Higher Institute of Engineering and Technology, New Damietta, Egypt
| | - R R Elazaby
- Department of Chemical Engineering, Higher Institute of Engineering and Technology, New Damietta, Egypt
| | - A A Zaatout
- Faculty of Engineering, Department of Chemical Engineering, Alexandria University, Alexandria, Egypt
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Jahanban-Esfahlan A, Ostadrahimi A, Tabibiazar M, Amarowicz R. A Comparative Review on the Extraction, Antioxidant Content and Antioxidant Potential of Different Parts of Walnut ( Juglans regia L.) Fruit and Tree. Molecules 2019; 24:E2133. [PMID: 31195762 PMCID: PMC6600437 DOI: 10.3390/molecules24112133] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/22/2019] [Accepted: 06/03/2019] [Indexed: 01/08/2023] Open
Abstract
As a valuable tree nut, walnut is a well-known member of the Juglandaceae family. The fruit is made up of an outer green shell cover or husk, the middle shell which must be cracked to release the kernel, a thin layer known as skin or the seed coat, and finally, the kernel or meat. The nutritional importance of walnut fruit is ascribed to its kernel. The shell and husk are burned as fuel or discarded away as waste products. In the past two decades, the evaluation of the phenolic content and antioxidant activity of different parts of walnut has received great interest. In this contribution, the recent reports on the extraction and quantification of phenolic content from each part of the walnut tree and fruit using different solvents were highlighted and comparatively reviewed. The current review paper also tries to describe the antioxidant content of phenolic extracts obtained from different parts of the walnut tree and fruit. Additionally, the antioxidant and antiradical activities of the prepared extracts have also been discussed.
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Affiliation(s)
- Ali Jahanban-Esfahlan
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran.
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran.
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran.
| | - Alireza Ostadrahimi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran.
| | - Mahnaz Tabibiazar
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz 5166-15731, Iran.
| | - Ryszard Amarowicz
- Division of Food Sciences, Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, 10-468 Olsztyn, Poland.
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36
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Lan G, Zhang Y, Liu Y, Qiu H, Liu P, Yan J, Zhang T. Modified peach stones by ethylenediamine as a new adsorbent for removal of Cr (VI) from wastewater. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1604752] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Guihong Lan
- College of Chemistry and Chemical Engineering, Southwest petroleum University, Chengdu, China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, China
| | - Yingting Zhang
- College of Chemistry and Chemical Engineering, Southwest petroleum University, Chengdu, China
| | - Yongqiang Liu
- Faculty of Engineering and Physical sciences, University of Southampton, Southampton, UK
| | - Haiyan Qiu
- College of Chemistry and Chemical Engineering, Southwest petroleum University, Chengdu, China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, China
| | - Peng Liu
- Northwest Sichuan Gas Mine, Southwest Oil and Gas Field Branch, Chengdu, China
| | - Junhua Yan
- Sichuan Zhuchuang Safety Technology Co., Ltd, Chengdu, China
| | - Tailiang Zhang
- Sichuan Kuineng Environmental Protection Technology Co., Ltd, Chengdu, China
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37
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Akram M, Khan B, Imran M, Ahmad I, Ajaz H, Tahir M, Rabbani F, Kaleem I, Nadeem Akhtar M, Ahmad N, Samad Shah N. Biosorption of lead by cotton shells powder: Characterization and equilibrium modeling study. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:138-144. [PMID: 30816070 DOI: 10.1080/15226514.2018.1488810] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lead (Pb) is a toxic heavy metal causing serious health risks to humans and animals. In the present study, cotton (Gossypium hirsutum L.) shells powder was used as adsorbent for the treatment of synthetic Pb-contaminated water. The batch scale biosorption capacity of cotton shells powder was evaluated to study the effects of Pb concentrations, adsorbent doses and contact time at constant pH (6) and temperature (25 °C). Results revealed that sorption of Pb increased (q = 0.09-9.60 mg/g) with increasing Pb concentration (1-15 mg/L) and contact time (15-90 min) while decreasing adsorbent dose (1-0.1 g/100 mL). The maximum Pb removal (90%) was achieved at Pb concentration (1 mg/L), contact time (90 min) and adsorbent dose (1 g/100 mL). Freundlich isotherm model proved best fit for Pb sorption (R2 = 0.99). The cotton shells powder has microporous structure confirmed by SEM, and has BET surface area (45 m2/g) and pore size (2.3 µm). These surface moieties along with various functional groups (C-H, C-O, C=O, O-H, S=O) confirmed by FTIR analysis might involve in Pb removal by complexation and ion exchange mechanisms. The cotton shells powder biomass could be considered as promising adsorbent for the removal of Pb from contaminated water.
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Affiliation(s)
- Muhammad Akram
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Binish Khan
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Muhammad Imran
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Iftikhar Ahmad
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Humayun Ajaz
- b Department of Chemistry , University of Engineering and Technology , Lahore , Pakistan
| | - Muhammad Tahir
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Faiz Rabbani
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Imdad Kaleem
- c Department of Bioinformatics and Biosciences , COMSATS University Islamabad , Islamabad , Pakistan
| | | | - Naveed Ahmad
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
| | - Noor Samad Shah
- a Department of Environmental Sciences , COMSATS University Islamabad, Vehari Campus , Vehari , Pakistan
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Jakóbik-Kolon A, Bok-Badura J, Milewski A, Karoń K. Long Term and Large-Scale Continuous Studies on Zinc(II) Sorption and Desorption on Hybrid Pectin-Guar Gum Biosorbent. Polymers (Basel) 2019; 11:polym11010096. [PMID: 30960080 PMCID: PMC6402029 DOI: 10.3390/polym11010096] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 12/31/2018] [Accepted: 01/03/2019] [Indexed: 11/24/2022] Open
Abstract
Pectin-guar gum biosorbent was tested for zinc(II) ions removal in column process. Sorption–desorption experiments were performed in laboratory and at larger scale. The breakthrough and elution curves were obtained for various conditions. The Bed Depth Service Time model was tested for utility in data estimation. Possibility of sorbent reuse and its lifetime was examined in 20 repeated sorption–desorption cycles. Finally, tests were repeated for real wastewater from galvanizing plant, giving satisfactory results. The effectiveness of Zn(II) sorption happened to be dependent on process parameters; tests have proved that it increased with increasing bed height and with decreasing flow rate or grain size. For an initial zinc concentration of 30 mg/L, even 2096 mL of zinc solution could be purified in small scale experiment (2 g of fine grain sorbent and flow rate 60 mL/h) or 5900 L in large-scale (16 kg of large grain sorbent and flow rate 45 L/h). This allowed for 40-fold or 49-fold zinc increases in concentration in one sorption–desorption cycle. The most successful results are meant that at least 20 sorption–desorption cycles could be performed on one portion of biosorbent without loss of its effectiveness, large-scale tests for real wastewater from galvanizing plant gave satisfactory results, and that the form and mechanical stability of our sorbent is suitable for column usage with flow rates applicable in industry.
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Affiliation(s)
- Agata Jakóbik-Kolon
- Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Joanna Bok-Badura
- Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Andrzej Milewski
- Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Krzysztof Karoń
- Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland.
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Lyu L, Jiang X, Jia L, Ai T, Wu H. Study on the Preparation of Mercaptoacetic Acid-modified Heterophylla Shell and Its Application in Separation and Enrichment of Pb2+ in Environmental Samples. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7331-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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40
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Norouzi S, Heidari M, Alipour V, Rahmanian O, Fazlzadeh M, Mohammadi-Moghadam F, Nourmoradi H, Goudarzi B, Dindarloo K. Preparation, characterization and Cr(VI) adsorption evaluation of NaOH-activated carbon produced from Date Press Cake; an agro-industrial waste. BIORESOURCE TECHNOLOGY 2018; 258:48-56. [PMID: 29522925 DOI: 10.1016/j.biortech.2018.02.106] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/19/2018] [Accepted: 02/22/2018] [Indexed: 05/24/2023]
Abstract
Date Press Cake (DPC) is an inevitable by-product of date processing industries and may pose environmental problems if not managed properly. In this study, DPC was converted into activated carbon using solid NaOH under various activation conditions. The prepared activated carbon showed high specific surface area (2025.9 m2 g-1) and microporous texture (86.01%). It was successfully applied for the adsorption of Cr(VI) from aqueous solutions with maximum monolayer adsorption capacities as high as 282.8 mg g-1 (pH = 2) and 198.0 mg g-1 (pH = 5). The kinetic and isotherm experimental data of Cr(VI) adsorption onto the activated carbon were best described by Elovich and Redlich-Peterson models, respectively. It was found that the Cr(VI) adsorption onto the DPC-derived activated carbon was predominantly a chemisorption process with limited desorption rates (below 50%). Overall, Date Press Cake could be considered as an abundant and renewable agro-industrial precursor for the production of high quality activated carbon.
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Affiliation(s)
- Samira Norouzi
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mohsen Heidari
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
| | - Vali Alipour
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Omid Rahmanian
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mehdi Fazlzadeh
- Social Determinants of Health Research Center, Department of Environmental Health Engineering, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fazel Mohammadi-Moghadam
- Department of Environmental Health Engineering, Faculty of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Heshmatollah Nourmoradi
- Department of Environmental Health Engineering, Faculty of Health, Ilam University of Medical Sciences, Ilam, Iran; Biotechnology and Medical Plants Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Babak Goudarzi
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Kavoos Dindarloo
- Department of Environmental Health Engineering, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
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Martín-Lara MA, Ortuño N, Conesa JA. Volatile and semivolatile emissions from the pyrolysis of almond shell loaded with heavy metals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:418-427. [PMID: 28918273 DOI: 10.1016/j.scitotenv.2017.09.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/10/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
Heavy metal-loaded almond shell was subjected to pyrolysis to understand the effect of the presence of different heavy metals on its thermal degradation. Pyrolysis behavior of native and metal-loaded samples was studied by thermogravimetric analysis. Similar shapes of thermogravimetric curves indicate that the presence of cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni) and lead (Pb) did not change the main degradation pathways of almond shell. However, the temperature at which the decomposition in each stage takes place at a higher rate and char yield was considerably modified by the presence of Cr and Ni. Then, pyrolysis tests of the almond shell samples were performed in a moving tubular reactor at 700°C. Gases and volatile organic compounds were collected using Tedlar bags and semivolatile organic compounds were collected using a resin as adsorbent. Significant changes were obtained in the composition of the gaseous fraction as a result of the metal impregnation. The main changes in the composition of the gas were observed for Ni-loaded sample, which presented the highest H2 and CO yields. Also, the yields of most of the light hydrocarbons decrease in the presence of metal, while the rest remain quite similar. The total PAH yields reached 103μg/g for nickel-loaded sample (NiAS), 164μg/g for copper-loaded sample (CuAS), 172μg/g for lead-loaded sample (PbAS), 245μg/g for native sample (AS), 248μg/g for cadmium-loaded sample (CdAS) and 283μg/g for chromium-loaded sample (CrAS). Nickel is the most effective in the higher aromatic tar reduction, followed by Cu and Pb, whereas the presence of Cd does not affect the total emissions of PAHs. Finally, the carcinogenic potency of the samples was calculated. Native sample and the sample loaded with Cr presented slightly higher values associated to the presence of small amounts of benzo(a)pyrene.
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Affiliation(s)
- M A Martín-Lara
- Department of Chemical Engineering, University of Granada, Spain
| | - N Ortuño
- University Institute of Chemical Process Engineering, University of Alicante, Spain
| | - J A Conesa
- University Institute of Chemical Process Engineering, University of Alicante, Spain.
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Ojo TA, Ojedokun AT, Bello OS. Functionalization of powdered walnut shell with orthophosphoric acid for Congo red dye removal. PARTICULATE SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1080/02726351.2017.1340914] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Titilope Abiodun Ojo
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Adedamola Titi Ojedokun
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
| | - Olugbenga Solomon Bello
- Department of Pure and Applied Chemistry, Ladoke Akintola University of Technology, Ogbomoso, Oyo, Nigeria
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Zinc Ion Removal on Hybrid Pectin-Based Beads Containing Modified Poly(Methyl Methacrylate) Waste. Molecules 2017; 22:molecules22122274. [PMID: 29261140 PMCID: PMC6149697 DOI: 10.3390/molecules22122274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/13/2017] [Accepted: 12/16/2017] [Indexed: 11/16/2022] Open
Abstract
A new hybrid sorbent in the form of round beads containing modified poly(methyl methacrylate) (PMMA) waste immobilized in pectin and crosslinked with calcium ions was prepared. A previously obtained and characterized powdered poly(methyl methacrylate)-based sorbent was used. Batch and column studies on the new material's sorption-desorption properties were performed. Two kinetic models (pseudo-first- and pseudo-second-order) and three isotherms (Langmuir, Langmuir bisite and Freundlich) were used to describe the results. Breakthrough and elution curves were also obtained. Nitric, hydrochloric, and sulfuric acid of various concentrations were used in the desorption studies. Higher sorption affinity of zinc(II) ions to hybrid sorbent than to pectin alone, reflected by higher values of the Langmuir and Freundlich model parameters, was observed. The maximum sorption capacities, calculated based on the best-fitted models, were 50.2 mg/g (Langmuir bisite) and 42.2 mg/g (Langmuir) for hybrid and only pectin beads, respectively. The stripping of Zn ions using 0.1 M solutions of mineral acids was similarly effective in the case of both sorbents. The mass balance calculated for the column studies showed about 100% recovery of zinc in a sorption-desorption cycle. By applying the hybrid sorbent under the studied conditions it is possible to purify Zn in water to the level permitted by law and concentrate Zn(II) ions by about 60 times.
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Gheju M, Balcu I, Enache A, Flueras A. A kinetic approach on hexavalent chromium removal with metallic iron. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 203:937-941. [PMID: 28318824 DOI: 10.1016/j.jenvman.2017.03.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/09/2017] [Accepted: 03/12/2017] [Indexed: 06/06/2023]
Abstract
This paper examines the mechanism of Cr(VI) removal with Fe(0), and the possible effect of various experimental parameters, from a kinetic perspective. The experimental data was analyzed using five different kinetic models: three for chemical reactions and two for adsorption processes. It was found that the process fitted well to the zero-order kinetic model for all investigated systems, excepting experiments conducted at 6 °C and those with nano-Fe(0), when the process followed the Ho's pseudo second-order model. Therefore, even though, under acidic conditions, chemical reduction can be generally considered as the main mechanism of Cr(VI) removal with Fe(0), under some experimental conditions (e.g. when working with nano-Fe(0) or at low temperatures), adsorption seems to be the dominant removal path. The enhanced Cr(VI) removal noticed in co-presence of SO42- and Cl- anions reiterates the significance of the secondary reductant Fe(II) within the process of Cr(VI) removal with Fe(0).
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Affiliation(s)
- M Gheju
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, Bd. V. Parvan Nr. 6, 300223, Timisoara, Romania.
| | - I Balcu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Str. Dr. Aurel Paunescu Podeanu Nr. 144, 300587, Timisoara, Romania
| | - A Enache
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, Bd. V. Parvan Nr. 6, 300223, Timisoara, Romania
| | - A Flueras
- Politehnica University Timisoara, Faculty of Industrial Chemistry and Environmental Engineering, Bd. V. Parvan Nr. 6, 300223, Timisoara, Romania
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Equilibrium, kinetic and thermodynamic studies of Cr(VI) adsorption from aqueous solution onto manganese oxide coated sand grain (MOCSG). J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.04.029] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Seifpanahi Shabani K, Doulati Ardejani F, Badii K, Olya ME. Preparation and characterization of novel nano-mineral for the removal of several heavy metals from aqueous solution: Batch and continuous systems. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Jakóbik-Kolon A, Bok-Badura J, Karoń K, Mitko K, Milewski A. Hybrid pectin-based biosorbents for zinc ions removal. Carbohydr Polym 2017; 169:213-219. [PMID: 28504138 DOI: 10.1016/j.carbpol.2017.03.095] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 03/16/2017] [Accepted: 03/29/2017] [Indexed: 10/19/2022]
Abstract
In this paper, a set of the hybrid biosorbents, made of pectin and polysaccharide additives (arabic, tragacanth, guar, karaya, xanthan, gellan, carob gums, agar-agar) or lecithin (phospholipid), was investigated and tested for zinc ions removal. The immobilization of the polysaccharides into the pectin matrix was proved by the IR spectroscopy. The structure of the working biosorbents was observed in SEM micrographs. The influence of the additive type and pH on the sorption properties and swelling index was investigated. The maximum sorption capacities were achieved in pH above 4 and ranged from 17.7 to 25.4mg/g for lecithin and xanthan gum as additives, respectively. The results show that the hybrid pectin-based beads are promising biosorbents for zinc removal from aqueous solutions.
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Affiliation(s)
- Agata Jakóbik-Kolon
- Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Bolesława Krzywoustego 6, 44-100 Gliwice, Poland.
| | - Joanna Bok-Badura
- Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Bolesława Krzywoustego 6, 44-100 Gliwice, Poland
| | - Krzysztof Karoń
- Silesian University of Technology, Faculty of Chemistry, Department of Physical Chemistry and Technology of Polymers, Marcina Strzody 9, 44-100 Gliwice, Poland
| | - Krzysztof Mitko
- Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Bolesława Krzywoustego 6, 44-100 Gliwice, Poland
| | - Andrzej Milewski
- Silesian University of Technology, Faculty of Chemistry, Department of Inorganic, Analytical Chemistry and Electrochemistry, Bolesława Krzywoustego 6, 44-100 Gliwice, Poland
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Lü L, Jiang X, Jia L, Ai T, Wu H. Kinetic and thermodynamic studies on adsorption of Cu2+, Pb2+, methylene blue and malachite green from aqueous solution using AMPS-modified hazelnut shell powder. Chem Res Chin Univ 2017. [DOI: 10.1007/s40242-017-6243-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Adsorption of Cadmium(II) onto Watermelon Rind Under Microwave Radiation and Application into Surface Water from Jeddah, Saudi Arabia. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2017. [DOI: 10.1007/s13369-016-2381-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Removal of Methylene Blue from Aqueous Solution Using Agricultural Residue Walnut Shell: Equilibrium, Kinetic, and Thermodynamic Studies. J CHEM-NY 2017. [DOI: 10.1155/2017/8404965] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Walnut shell (WS), as an economic and environmental-friendly adsorbent, was utilized to remove methylene blue (MB) from aqueous solutions. The effects of WS particle size, solution pH, adsorbent dosage and contact time, and concentration of NaCl on MB removal were systematically investigated. Under the optimized conditions (i.e., contact time ~ 2 h, pH ~ 6, particle size ~ 80 mesh, dye concentration 20 mg/L, and 1.25 g/L adsorbent), the removal percentages can achieve ~97.1%, indicating WS was a promising absorbent to remove MB. Other supplementary experiments, such as Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), and Brunauer-Emmett-Teller (BET) method, were also employed to understand the adsorption mechanisms. FTIR confirmed that the successful adsorption of MB on WS particles was through functional groups of WS. Using DLS method, the interactions between WS particles and dyes under various pH were investigated, which can be ascribed to the electrostatic forces. Kinetic data can be well fitted by the pseudo-second-order model, indicating a chemical adsorption. The adsorption isotherms were well described by both Langmuir and Freundlich models. Dubinin-Radushkevich model also showed that the adsorption process was a chemical adsorption. Thermodynamic data indicated that the adsorption was spontaneous, exothermic, and favorable at room temperature.
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