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Li H, Li Z, Long J, Fu J, Chen C. Mechanisms of N-doped microporous biochar decreased Cd transition in rhizosphere soils and its impact on soil bacterial community composition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175873. [PMID: 39214365 DOI: 10.1016/j.scitotenv.2024.175873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2024] [Revised: 08/19/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Soil cadmium (Cd) contamination has garnered considerable attention. This study employed batch sorption experiments and rhizobox experiments to examine the impact of nitrogen-doped microporous biochar (NBB) on the temporal and spatial distribution of Cd in the rhizosphere of rice plants, with the aim of elucidating the underlying mechanisms. The results indicated that the adsorption of Cd(II) onto NBB was predominantly governed by chemical reactions. When applied to soil, the NBB significantly hindered the migration of Cd from the bulk soil to the rhizosphere. Additionally, the application of NBB decreased the redox potential (Eh) in the rhizosphere soil and increased the relative abundance of Anaeromyxobacteraceae, Geobacteraceae, Desulfurisporaceae, and Syntrophomonadaceae, which could facilitate the reduction of soil Cd availability. Furthermore, the NBB2 treatment encouraged the formation of iron plaque on the root surface, thereby limiting the uptake of Cd from the soil into the root system. Moreover, the N-doped microporous biochar treatment resulted in lower Cd levels in the stele of root, an effect that was associated with increased sulfur (S) content in the stele and epidermis, suggesting a potential role for S in Cd sequestration. Ultimately, the application of N-doped microporous biochar resulted in diminished Cd accumulation in the rice tissues.
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Affiliation(s)
- Honghong Li
- School of History and Geography, Minnan Normal University, Zhangzhou 363000, PR China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
| | - Zhou Li
- Subtropical Agriculture Research Institute, Fujian Academy of Agricultural Sciences, Zhangzhou 363000, Fujian, PR China
| | - Jun Long
- School of Biological Science and Technology, Minnan Normal University, Zhangzhou 363000, Fujian, PR China
| | - Jiayi Fu
- School of History and Geography, Minnan Normal University, Zhangzhou 363000, PR China
| | - Chen Chen
- School of History and Geography, Minnan Normal University, Zhangzhou 363000, PR China
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2
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Xu M, Ren M, Yao Y, Liu Q, Che J, Wang X, Xu Q. Biochar decreases cadmium uptake in indica and japonica rice (Oryza sativa L.): Roles of soil properties, iron plaque, cadmium transporter genes and rhizobacteria. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135402. [PMID: 39096632 DOI: 10.1016/j.jhazmat.2024.135402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/19/2024] [Accepted: 07/31/2024] [Indexed: 08/05/2024]
Abstract
Biochar is an effective and economical strategy for in situ soil cadmium (Cd) remediation. It is essential to comprehensively investigate how biochar mitigates Cd uptake of the main rice subspecies. A pot experiment was established via adding corn stalk biochar into Cd-contaminated soil growing indica Yangdao 6 (YD) and japonica Nangeng 9108 (9108). 9108 had lower shoot biomass (-17.9%) but higher root biomass (+14.4%) and shoot Cd concentration (+29.4%) than YD. Biochar decreased soil available Cd by 25.2% and shoot Cd concentration by 13.6% through the liming and passivation effects. Biochar also favored Cd mitigation by recruiting Fe reducer, Cd remover and plant growth-promoting rhizobacteria (e.g. Bacteroides, Deferrisomatota, Bacillus and Allorhizobium). Besides, biochar reduced Cd uptake by stimulating iron plaques formation for 9108. Moreover, biochar did not reduce Cd uptake by inhibiting Cd transporter genes' expressions and it increased OsHMA2 expression in YD. In conclusion, biochar had great capacity in mitigating Cd pollution and rice subspecies responded differently to biochar in iron plaque formation and Cd transporter genes. The research established a comprehensive understanding of the mechanisms underlying Cd mitigation by biochar and helped to breed low Cd-accumulated rice cultivars to safeguard rice production.
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Affiliation(s)
- Meiling Xu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Meiling Ren
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Yu Yao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China
| | - Qi Liu
- College of Forestry, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Jing Che
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Xiaozhi Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210095, China
| | - Qiao Xu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, China; Department of Animal, Plant and Soil Sciences, Centre for AgriBioscience, La Trobe University, Melbourne, VIC 3086, Australia.
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3
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Chen K, Jiang J, Huang C, Wang L, Wang X. Investigating the potential of mineral precipitation in co-pyrolysis biochar: Development of a novel Cd (II) adsorption material utilizing dual solid waste. BIORESOURCE TECHNOLOGY 2024; 402:130762. [PMID: 38692371 DOI: 10.1016/j.biortech.2024.130762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/03/2024]
Abstract
Ionic cadmium (Cd (II)) in water is a significant threat to ecosystems, the environment, and human health. Research is currently focused on developing efficient adsorption materials to combat Cd (II) pollution in water. One promising solution involves co-pyrolyzing solid residue from anaerobic digestion of food waste with oil-based drill cuttings pyrolysis residue to create a biochar with high organic matter content. This biochar has a lower heavy metal content and leaching toxicity compared to China's national standards, making it both safe and resourceful. It exhibits a high adsorption capacity for Cd (II) in water, reaching up to 47.80 ± 0.37 mg/g. Raising the pyrolysis temperature above 600 °C and increasing the amount of pyrolysis residue beyond 30 % enhances the biochar's adsorption capacity. The adsorption process is primarily driven by mineral precipitation, offering a promising approach for dual waste resource management and reducing heavy metal pollution.
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Affiliation(s)
- Kejin Chen
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; College of Environment and Ecology, Chongqing University, Chongqing 400044, China
| | - Jiaojiao Jiang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; College of Environment and Ecology, Chongqing University, Chongqing 400044, China
| | - Chuan Huang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; College of Environment and Ecology, Chongqing University, Chongqing 400044, China
| | - Li'ao Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Xiang Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, China; College of Environment and Ecology, Chongqing University, Chongqing 400044, China.
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Huang W, Wang L, Zhu J, Dong L, Hu H, Yao H, Wang L, Lin Z. Application of machine learning in prediction of Pb 2+ adsorption of biochar prepared by tube furnace and fluidized bed. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27286-27303. [PMID: 38507168 DOI: 10.1007/s11356-024-32951-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
Data mining by machine learning (ML) has recently come into application in heavy metals purification from wastewater, especially in exploring lead removal by biochar that prepared using tube furnace (TF-C) and fluidized bed (FB-C) pyrolysis methods. In this study, six ML models including Random Forest Regression (RFR), Gradient Boosting Regression (GBR), Support Vector Regression (SVR), Kernel Ridge Regression (KRR), Extreme Gradient Boosting (XGB), and Light Gradient Boosting Machine (LGBM) were employed to predict lead adsorption based on a dataset of 1012 adsorption experiments, comprising 422 TF-C groups from our experiments and 590 FB-C groups from literatures. The XGB model showed superior accuracy and predictive performance for adsorption, achieving R2 values for TF-C (0.992) and FB-C (0.981), respectively. Contrasting inferior results were observed in other models, including RF (0.962 and 0.961), GBR (0.987 and 0.975), SVR (0.839 and 0.763), KRR (0.817 and 0.881), and LGBM (0.975 and 0.868). Additionally, a hybrid dataset combining both biochars in Pb adsorption also indicated high accuracy (0.972) as obtained from XGB model. The investigation revealed that the influence of char characteristics and adsorption conditions on Pb adsorption differs between the two biochar. Specific char characteristics, particularly nitrogen content, significantly influence lead adsorption in both biochar. Interestingly, the influence of pyrolysis temperature (PT) on lead adsorption is found to be greater for TF-C than for FB-C. Consequently, careful consideration of PT is crucial when preparing TF-C biochar. These findings offer practical guidance for optimizing biochar preparation conditions during heavy metal removal from wastewater.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
- Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Liang Wang
- China Power Hua Chuang (Suzhou) Electricity Technology Research Company Co., Ltd., Suzhou, 215125, China
| | - JingJing Zhu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Lu Dong
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
- Research Institute, Huazhong University of Science and Technology in Shenzhen, Wuhan, 430074, China.
| | - Hongyun Hu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
- Research Institute, Huazhong University of Science and Technology in Shenzhen, Wuhan, 430074, China
| | - Hong Yao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - LinLing Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Zhong Lin
- Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, 524088, PR China
- Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, 518108, PR China
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Mitzia A, Böserle Hudcová B, Vítková M, Kunteová B, Casadiego Hernandez D, Moško J, Pohořelý M, Grasserová A, Cajthaml T, Komárek M. Pyrolysed sewage sludge for metal(loid) removal and immobilisation in contrasting soils: Exploring variety of risk elements across contamination levels. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170572. [PMID: 38309337 DOI: 10.1016/j.scitotenv.2024.170572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/16/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Efficient treatment of sewage sludge may transform waste into stable materials with minimised hazardous properties ready for secondary use. Pyrolysed sewage sludge, sludgechar, has multiple environmental benefits including contaminant sorption capacity and nutrient recycling. The properties of five sludgechars were tested firstly for adsorption efficiency in laboratory solutions before prospective application to soils. A wide variety of metal(loid)s (As, Cd, Co, Cr, Cu, Ni, Pb, Sb, and Zn) was involved. Secondly, the sludgechars (3 % v/v) were incubated in five soils differing in (multi)-metal(loid) presence and the level of contamination. The main aim was to evaluate the metal(loid) immobilisation potential of the sludgechars for soil remediation. Moreover, nutrient supply was investigated to comprehensively assess the material's benefits for soils. All sludgechars were efficient (up to 100 %) for the removal of metal cations while their efficiency for metal(loid) anions was limited in aqueous solutions. Phosphates and sulphates were identified crucial for metal(loid) capture, based on SEM/EDS, XRD and MINTEQ findings. In soils, important fluctuations were observed for Zn, being partially immobilised by the sludgechars in high-Zntot soils, while partially solubilised in moderate to low-Zntot soils. Moreover, pH showed to be crucial for material stability, metal(loid) adsorption ability and their immobilisation in soils. Although metal(loid) retention was generally low in soils, nutrient enrichment was significant after sludgechar application. Long-term evaluation of the material sorption efficiency, nutrient supply, and ageing in soil environments will be necessary in future studies.
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Affiliation(s)
- Aikaterini Mitzia
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Barbora Böserle Hudcová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Martina Vítková
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic.
| | - Barbora Kunteová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Daniela Casadiego Hernandez
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
| | - Jaroslav Moško
- Institute of Chemical Process Fundamentals, The Czech Academy of Sciences, Rozvojová 135, 165 00 Prague 6, Czech Republic; Department of Power Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Michael Pohořelý
- Institute of Chemical Process Fundamentals, The Czech Academy of Sciences, Rozvojová 135, 165 00 Prague 6, Czech Republic; Department of Power Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Alena Grasserová
- Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, 142 20 Praha 4 - Krč, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic
| | - Tomáš Cajthaml
- Institute of Microbiology, The Czech Academy of Sciences, Vídeňská 1083, 142 20 Praha 4 - Krč, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 128 01 Praha 2, Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Praha - Suchdol, Czech Republic
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6
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Zhang W, Ashraf WM, Senadheera SS, Alessi DS, Tack FMG, Ok YS. Machine learning based prediction and experimental validation of arsenite and arsenate sorption on biochars. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166678. [PMID: 37657549 DOI: 10.1016/j.scitotenv.2023.166678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/27/2023] [Accepted: 08/27/2023] [Indexed: 09/03/2023]
Abstract
Arsenic (As) contamination in water is a significant environmental concern with profound implications for human health. Accurate prediction of the adsorption capacity of arsenite [As(III)] and arsenate [As(V)] on biochar is vital for the reclamation and recycling of polluted water resources. However, comprehending the intricate mechanisms that govern arsenic accumulation on biochar remains a formidable challenge. Data from the literature on As adsorption to biochar was compiled and fed into machine learning (ML) based modelling algorithms, including AdaBoost, LGBoost, and XGBoost, in order to build models to predict the adsorption efficiency of As(III) and As(V) to biochar, based on the compositional and structural properties. The XGBoost model showed superior accuracy and performance for prediction of As adsorption efficiency (for As(III): coefficient of determination (R2) = 0.93 and root mean square error (RMSE) = 1.29; for As(V), R2 = 0.99, RMSE = 0.62). The initial concentrations of As(III) and As(V) as well as the dosage of the adsorbent were the most significant factors influencing adsorption, explaining 48 % and 66 % of the variability for As(III) and As(V), respectively. The structural properties and composition of the biochar explained 12 % and 40 %, respectively, of the variability of As(III) adsorption, and 13 % and 21 % of that of As(V). The XGBoost models were validated using experimental data. R2 values were 0.9 and 0.84, and RMSE values 6.5 and 8.90 for As(III) and As(V), respectively. The ML approach can be a valuable tool for improving the treatment of inorganic As in aqueous environments as it can help estimate the optimal adsorption conditions of As in biochar-amended water, and serve as an early warning for As-contaminated water.
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Affiliation(s)
- Wei Zhang
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea; School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Waqar Muhammad Ashraf
- The Sargent Centre for Process Systems Engineering, Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - Sachini Supunsala Senadheera
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea; International ESG Association (IESGA), Seoul 06621, Republic of Korea
| | - Daniel S Alessi
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
| | - Filip M G Tack
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Frieda Saeysstraat 1, B-9052 Gent, Belgium
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea; International ESG Association (IESGA), Seoul 06621, Republic of Korea.
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Hou J, Wan H, Liang K, Cui B, Ma Y, Chen Y, Liu J, Wang Y, Liu X, Zhang J, Wei Z, Liu F. Biochar amendment combined with partial root-zone drying irrigation alleviates salinity stress and improves root morphology and water use efficiency in cotton plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166978. [PMID: 37704141 DOI: 10.1016/j.scitotenv.2023.166978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
An adsorption experiment and a pot experiment were executed in order to explore the mechanisms by which biochar amendment in combination with reduced irrigation affects sodium and potassium uptake, root morphology, water use efficiency, and salinity tolerance of cotton plants. In the adsorption experiment, ten NaCl concentration gradients (0, 50, 100, 150, 200, 250, 300, 350, 400, and 500 mM) were set for testing isotherm adsorption of Na+ by biochar. It was found that the isotherms of Na+ adsorption by wheat straw biochar (WSP) and softwood biochar (SWP) were in accordance with the Langmuir isotherm model, and the Na+ adsorption ability of WSP (55.20 mg g-1) was superior to that of SWP (47.38 mg g-1). The pot experiment consisted three factors, viz., three biochar amendments (no biochar, WSP, and SWP), three irrigation strategies (deficit irrigation, partial root-zone drying irrigation - PRD, full irrigation), and two NaCl concentrations gradients (0 mM and 200 mM). The findings indicated that salinity stress lowered K+ concentration, root length, root surface area, and root volume (RV), but increased Na+ concentration, root average diameter, and root tissue density. However, biochar amendment decreased Na+ concentration, increased K+ concentration, and improved root morphology. In particular, the combination of WSP and PRD increased K+/Na+ ratio, RV, root weight density, root surface area density, water use efficiency, and partial factor productivity under salt stress, which can be a promising strategy to cope with drought and salinity stress in cotton production.
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Affiliation(s)
- Jingxiang Hou
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Heng Wan
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China; Soil Physics and Land Management Group, Wageningen University, P.O. Box 47, Wageningen, 6700 AA, Netherlands
| | - Kehao Liang
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark
| | - Bingjing Cui
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yingying Ma
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi 710129, China
| | - Yiting Chen
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark
| | - Jie Liu
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yin Wang
- College of Resources and Environmental Sciences, Jilin Agricultural University, Changchun 130118, Jilin, China
| | - Xuezhi Liu
- School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
| | - Jiarui Zhang
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhenhua Wei
- College of Water Resources and Architectural Engineering, Northwest A&F University, Weihui Road 23, 712100 Yangling, Shaanxi, China; Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Fulai Liu
- Department of Plant and Environmental Science, Faculty of Science, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark.
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8
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Zanin Lima J, Monici Raimondi Nauerth I, Ferreira da Silva E, José Pejon O, Guimarães Silvestre Rodrigues V. Competitive sorption and desorption of cadmium, lead, and zinc onto peat, compost, and biochar. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 344:118515. [PMID: 37418925 DOI: 10.1016/j.jenvman.2023.118515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/11/2023] [Accepted: 06/23/2023] [Indexed: 07/09/2023]
Abstract
Soil and water contamination by potentially toxic metals (PTMs) has exerted adverse environmental impacts, which justifies studies of promising remediation alternatives. This article investigated the competitive sorption of cadmium (Cd), lead (Pb), and zinc (Zn) onto peat, compost, and biochar derived from the organic fraction of municipal solid waste (OFMSW), but its main innovation was the post-sorption assessment. The effects of contact time on competition between contaminants were systematically analyzed by batch experiments and the effectiveness of the sorption process was evaluated in desorption tests (H2O, HCl, NaOH, and NaCl) and sequential extraction. Kinetic data were well-fitted to pseudo-first-order (PFO) and pseudo-second-order (PSO) models and the intra-particle diffusion model revealed the existence of multiple linear regions, indicating the sorption process was controlled by a multi-step mechanism. The sorption capacities followed a biochar > compost > peat order, with biochar retaining more than 99% of Cd, Pb, and Zn in all samples. The general order of desorption percentage was peat > compost > biochar, with a below 0.60% biochar release, suggesting the importance of chemical processes. HCl solution (more acid pH) showed the highest release of previously sorbed contaminants and, therefore, can be employed for the reuse of sorbents (sorption/desorption cycles). The only exception was Pb desorption on biochar, with maximum release in NaOH solution. A negative Pearson correlation with F1 (acid-soluble/exchangeable fraction) for Cd and Zn and a positive one with the other steps were reported. Pb exhibited an opposite behavior, showing the highest sorption performances and the lowest desorption rates for all sorbents, justified by positive correlations with F4 (residual fraction) and negative ones with desorption. The findings suggest the evaluated sorbents, especially compost and biochar, can be effective materials in the simultaneous sorption of Cd, Pb, and Zn in wastewater, as well as an amendment for PTMs immobilization in contaminated soils.
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Affiliation(s)
- Jacqueline Zanin Lima
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, 400 Trabalhador São Carlense Ave, São Carlos, 13566-590, Brazil; GeoBioTec, Department of Geoscience, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Isabela Monici Raimondi Nauerth
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, 400 Trabalhador São Carlense Ave, São Carlos, 13566-590, Brazil
| | - Eduardo Ferreira da Silva
- GeoBioTec, Department of Geoscience, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Osni José Pejon
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, 400 Trabalhador São Carlense Ave, São Carlos, 13566-590, Brazil
| | - Valéria Guimarães Silvestre Rodrigues
- Department of Geotechnical Engineering, São Carlos School of Engineering, University of São Paulo, 400 Trabalhador São Carlense Ave, São Carlos, 13566-590, Brazil.
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9
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Zang Y, Wang M, Shohag MJI, Lu L, He T, Liao C, Zhang Z, Chen J, You X, Zhao Y, Wei Y, Tian S. Biochar performance for preventing cadmium and arsenic accumulation, and the health risks associated with mustard (Brassica juncea) grown in co-contaminated soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115216. [PMID: 37421894 DOI: 10.1016/j.ecoenv.2023.115216] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 06/18/2023] [Accepted: 06/29/2023] [Indexed: 07/10/2023]
Abstract
Cadmium (Cd) and arsenic (As) in co-contaminated soil can enter the human body harming health via the food chain, such as vegetables. Biochar derived from waste has been used to reduce heavy metal uptake by plant, but long-term effects of biochar under Cd and As co-contaminated soil needs to be investigated. A following mustard (Brassica juncea) was grown on co-contaminated soil amended with different raw materials of biochar including biochars pyrolyzed by lignite coal (LCB), rice straw (RSB), silkworm excrement (SEB), and sugar refinery sludge (SSB). The results showed that compared to the control, Cd and As contents of mustard shoot in SSB treatment decreased by 45-49% and 19-37% in two growing seasons, respectively, which was the most effective among 4 biochars. This probably due to SSB owns more abundant Fe-O functional groups. Biochar also altered the microbial community composition, specifically SSB increased proteobacteria abundance by 50% and 80% in the first and second growing seasons, thereby promoted the simultaneous immobilization of Cd and As in soils which may reduce the potential risks to humans. In summary, considering the long-term effects and security of SSB application on mustard, not only is it an effective waste recycle option, but it should also be promoted as a promising approach for safe vegetable production in Cd and As co-contaminated soils.
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Affiliation(s)
- Yili Zang
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China; MOE Key Laboratory of Environment Remediation and Ecological Health, Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, College of Environmental & Resource Science, Zhejiang University, Hangzhou 310058, China
| | - Min Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
| | - M J I Shohag
- Department of Agriculture, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - Lingli Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, College of Environmental & Resource Science, Zhejiang University, Hangzhou 310058, China
| | - Tieguang He
- Agricultural Resources and Environmental Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Arable Land Conservation, Nanning 530007, Guangxi, China
| | - Changjun Liao
- Guangxi Bossco Enviromental Protection Technology Co., Ltd, Nanning 53007, China
| | - Zengyu Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Jiancheng Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Xiaoshuang You
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Yihan Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Yanyan Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agri-bioresources, Guangxi Key Laboratory for Agro-Environment and Agro-Products Safety, College of Agriculture, Guangxi University, Nanning 530004, China.
| | - Shengke Tian
- MOE Key Laboratory of Environment Remediation and Ecological Health, Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, College of Environmental & Resource Science, Zhejiang University, Hangzhou 310058, China.
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Khalid S, Chaudhary MN, Nazir R, Ahmad SR, Hussain N, Ayub Y, Ibrar M. Biochar supported metallo-inorganic nanocomposite: A green approach for decontamination of heavy metals from water. PLoS One 2023; 18:e0289069. [PMID: 37708189 PMCID: PMC10501632 DOI: 10.1371/journal.pone.0289069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/11/2023] [Indexed: 09/16/2023] Open
Abstract
Heavy metal contamination of water has become a global environmental burden, which has stirred up agitation worldwide. Fabrication of adsorbents utilizing either low cost, environment friendly materials or waste products can be helpful in remediating environmental pollution. The current study evolved around the synthesis of nanocomposites derived from such raw precursors like spent tea waste biochar, hydroxyapatite, and clays. In this context, two nanocomposites, namely manganese ferrite doped hydroxyapatite/kaolinite/biochar (TK-NC) and manganese ferrite doped hydroxyapatite/vermiculite/biochar (TV-NC), were synthesized followed by their employment for decontamination of heavy metals from aqueous media. TK-NC and TV-NC exhibited the crystallite sizes in the range of 2.55-5.94 nm as obtained by Debye Scherrer Equation and Williamsons-Hall equation The fabricated nanocomposites were characterized using FT-IR, SEM-EDX, and powder XRD. Batch adsorption studies were performed, and influence of different adsorption parameters (contact time, reaction temperature, solution pH, adsorbent dose, and initial adsorbate concentration) on metal adsorption was examined. Thermodynamic studies revealed that the adsorption of Cr(VI), Ni(II) and Cu(II) on TK-NC and TV-NC was endothermic (+ΔH°) and indicates disorderness (+ΔS°) at the solid-liquid interface owing to the strong affinity of metal ions with adsorbent. The heavy metal uptake selectivity followed the following decreasing order; Cr(VI) > Cu(II) > Ni(II) by both nanocomposites, with adsorption capacities falling in the range of 204.68-343.05 mg g-1. Several adsorption kinetic and isotherm models were applied to experimentally calculated data, which suggest favorable adsorption of Cr(VI), Ni(II) and Cu(II) by TK-NC and TV-NC from the system while obeying general-order kinetics and R-P adsorption model, conferring the transition in adsorption kinetics order and involvement of multiple adsorption process.
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Affiliation(s)
- Sana Khalid
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
| | - Muhammad Nawaz Chaudhary
- Department of Environmental Sciences & Policy, Lahore School of Economics (LSE), Lahore, Pakistan
| | - Rabia Nazir
- Pakistan Council of Scientific and Industrial Research Laboratories Complex, Lahore, Pakistan
| | - Sajid Rashid Ahmad
- College of Earth & Environmental Sciences, University of the Punjab, Lahore, Pakistan
| | - Naqi Hussain
- Department of Environmental Sciences & Policy, Lahore School of Economics (LSE), Lahore, Pakistan
| | - Yaseen Ayub
- Department of Chemistry, Forman Christian College, Lahore, Punjab, Pakistan
| | - Muhammad Ibrar
- Department of Chemistry, Lahore Garrison University, Lahore, Pakistan
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11
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Liu B, Zhang Z, Guan DX, Wang B, Zhou S, Chen T, Wang J, Li Y, Gao B. Qualitative and quantitative analysis for Cd 2+ removal mechanisms by biochar composites from co-pyrolysis of corn straw and fly ash. CHEMOSPHERE 2023; 330:138701. [PMID: 37062388 DOI: 10.1016/j.chemosphere.2023.138701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 05/14/2023]
Abstract
Removal of heavy metals (e.g., Cd) from contaminated water using waste-converted adsorbents is promising, but the efficiency still needs to be improved. Here, we prepared a functional biochar composite as novel Cd adsorbents by co-pyrolysis of two typical solid wastes, i.e., agricultural corn straw and industrial fly ash. The adsorption behavior and mechanism were investigated using batch and column adsorption experiments and modern characterization techniques. Results showed that alkali-modified fly ash (AMFA) was loaded onto the surface of the corn straw biochar as some fine particle forms, with quartz (SiO2) and silicate being the main mineral phases on the surface. The maximum sorption capacity fitted by Langmuir model for functionalized biochar composite (FBC700) was up to 137.1 mg g-1, which was 7.7 times higher than that of the original corn straw biochar (BC700). Spectroscopic analysis revealed that adsorption mechanisms of Cd onto the FBC700 included mainly precipitation and ion exchange, with complexation and Cd-π interaction also contributing. The AMFA could effectively improve the mineral precipitation with Cd. The adsorption columns filled with FBC700 exhibited a longer breakthrough time than that filled with BC700. The adsorption capacity calculated by Thomas model for FBC700 was also approximately 6.0 times higher than that for BC700, showing that FBC700 was more suited to practical applications. This study provided a novel perspective for recycling solid wastes and treating Cd-contaminated water.
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Affiliation(s)
- Bingxiang Liu
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China; Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, Anhui University, Hefei, 230601, China.
| | - Zihang Zhang
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Dong-Xing Guan
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Bing Wang
- College of Resources and Environment Engineering, Guizhou University, Guiyang, 550025, China
| | - Shaoqi Zhou
- College of Resources and Environment Engineering, Guizhou University, Guiyang, 550025, China
| | - Tong Chen
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Jintao Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Yucheng Li
- School of Resources and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Bo Gao
- Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China
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Yu W, Chu C, Chen B. Pyrogenic Carbon Improves Cd Retention during Microbial Transformation of Ferrihydrite under Varying Redox Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:7875-7885. [PMID: 37171251 DOI: 10.1021/acs.est.3c01008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Fe(III) (oxyhydr)oxides are ubiquitous in paddy soils and play a key role in Cd retention. Recent studies report that pyrogenic carbon (PC) may largely affect the microbial transformation processes of Fe(III) (oxyhydr)oxides, yet the impact of PC on the fate of Fe(III) (oxyhydr)oxide-associated Cd during redox fluctuations remains unclear. Here, we investigated the effects of PC on Cd retention during microbial (Shewanella oneidensis MR-1) transformation of Cd(II)-bearing ferrihydrite under varying redox conditions. The results showed that in the absence of PC, microbial reduction of ferrihydrite resulted in Cd release under anoxic conditions and Fe(II) oxidation by oxygen resulted in Cd retention under subsequent oxic conditions. The presence of PC facilitated microbial ferrihydrite reductive dissolution under anoxic conditions, promoted Fe(II) oxidative precipitation under oxic conditions, and inhibited Cd release under both anoxic and oxic conditions. The presence of PC and frequent shifts in redox conditions (i.e., redox cycling) inhibited the transformation of ferrihydrite to highly crystalline goethite and magnetite that exhibited less Cd adsorption. As a result, PC enhanced Cd retention by 41-59% and 55-77% after the redox shift and redox cycling, respectively, while in the absence of PC, Cd retention decreased by 5% after the redox shift and increased by 11% after redox cycling. Sequential extraction analysis revealed that 63-78% of Cd was associated with Fe minerals, while 3-12% of Cd was bound to PC, indicating that PC promoted Cd retention mainly through inhibiting ferrihydrite transformation. Our results demonstrate the great impacts of PC on improving Cd retention under dynamic redox conditions, which is essential for applying PC in remediating Cd-contaminated paddy soils.
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Affiliation(s)
- Wentao Yu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
| | - Chiheng Chu
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou 310058, China
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13
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Nixon Nonh D, Aw S, Siaka S, Livet A, Sylvestre Yapo N, Bousserrhine N. Evaluation of the lead removal capacity by the adsorption process of Corbula trigona shell powder: modeling and optimization through reponse surface methodology. RSC Adv 2023; 13:11346-11355. [PMID: 37057272 PMCID: PMC10088489 DOI: 10.1039/d3ra00562c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/24/2023] [Indexed: 04/15/2023] Open
Abstract
This study is based on the evaluation of the adsorption process using Corbula trigona shell powder to remove lead from aqueous solution in a batch mode. Different analytical techniques, including X-ray diffraction, Fourier transform infrared spectroscopy, and EDS-coupled scanning electron microscopy, were used to characterize the shell powder before and after lead treatment. Regarding the pollutant removal, a Plackett-Burman design (PBD) was first used to determine the influencing factors from the following experimental domain: solution pH (3-9), adsorbent mass (0.1-0.5 g), contact time (40 -240 min), initial pollutant concentration (10 -60 mg L-1), and adsorbent size (100 -200 μm). The respective contributions of the various factors listed above are 31.7%, 30.51%, 25.17%, 12.44%, and 0.18%. As a result, solution pH, adsorbent mass, contact time, and initial pollutant concentration were selected to optimize the lead removal process using the composite central plan. The optimal lead removal conditions were 99.028% by setting the solution pH to 4.5, initial lead concentration to 47 mg L-1, contact time to 125 min, and adsorbent mass to 0.2 g. In addition, it was found that the composite central plan could be a reliable statistical tool to model and determine the optimal conditions.
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Affiliation(s)
- Dan Nixon Nonh
- Laboratoire des Procédés Industriels, de Synthèse, de L'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY BP 1093 Yamoussoukro Ivory Coast +2250748296357
| | - Sadat Aw
- Laboratoire des Procédés Industriels, de Synthèse, de L'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY BP 1093 Yamoussoukro Ivory Coast +2250748296357
| | - Sorho Siaka
- Laboratoire des Procédés Industriels, de Synthèse, de L'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY BP 1093 Yamoussoukro Ivory Coast +2250748296357
| | - Alexandre Livet
- Laboratoire Eau, Environnement Systèmes Urbains (LEESU), Université Paris Est Créteil (UPEC), Faculté des Sciences et Technologie 61 Avenue Général De Gaulle 94010 Créteil Cedex France
| | - N'Zébo Sylvestre Yapo
- Laboratoire des Procédés Industriels, de Synthèse, de L'Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix HOUPHOUËT-BOIGNY BP 1093 Yamoussoukro Ivory Coast +2250748296357
| | - Noureddine Bousserrhine
- Laboratoire Eau, Environnement Systèmes Urbains (LEESU), Université Paris Est Créteil (UPEC), Faculté des Sciences et Technologie 61 Avenue Général De Gaulle 94010 Créteil Cedex France
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14
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Zhao P, Wang A, Wang P, Huang Z, Fu Z, Huang Z. Two recyclable and complementary adsorbents of coal-based and bio-based humic acids: High efficient adsorption and immobilization remediation for Pb(II) contaminated water and soil. CHEMOSPHERE 2023; 318:137963. [PMID: 36708780 DOI: 10.1016/j.chemosphere.2023.137963] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Humic acid can effectively bind heavy metals and is a promising remediation agent for heavy metals-contaminated water and soil. Many successful applications of humic acid have been reported, but rarely studied the specific process and mechanism of heavy metal removal by humic acids from water and soil, especially the simultaneous application of coal-based and bio-based humic acids. In this work, two kinds of coal-based and bio-based humic acid materials (CHA and BHA) from weathered coal and rice husk were industrially produced and studied their Pb(II) adsorption and immobilization characteristics and mechanisms in water and soil. The batch adsorption experiments obtained the Pb(II) adsorption by CHA and BHA both were spontaneous and endothermic monolayer chemisorption and controlled by three rate-limiting steps (bulk, film, and pore) in the adsorption process. CHA and BHA had highly efficient Pb(II) adsorption capacities, obtained their maximum adsorption capacity was 201 and 188 mg g-1, respectively. In addition to the two main adsorption mechanisms of ion exchange and surface complexation, electrostatic interaction, precipitation reaction, and π-π interaction were also involved. Soil culture experiments showed that CHA and BHA both exhibited a highly efficient immobilization effect on Pb(II)-contaminated soil, and CHA and BHA had a better synergistic promotion effect. Compared with the CK soil, the content of DTPA-Pb(II) decreased by 10.2-13.2% and the content of RES-Pb(II) increased by 14-22% in soils treated with different humic acids. Ion exchange, complexation, precipitation, and electrostatic attraction promote the transformation of unstable Pb(II) to stable Pb(II), which was of great significance for the immobilization of Pb(II) in soil. Overall, CHA and BHA have the potential to be used as green, efficient, and promising adsorbents to remove and immobilize Pb(II) from wastewater and soil.
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Affiliation(s)
- Peng Zhao
- School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China
| | - An Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China
| | - Ping Wang
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, 256603, China
| | - Zhen Huang
- China Quality Certification Center, Beijing , 100070, China
| | - Zhanyong Fu
- Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, 256603, China
| | - Zhanbin Huang
- School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China.
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15
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Quantitatively ion-exchange between Mg(II) and Pb(II)/Cd(II) during the highly efficient adsorption by MgO-loaded lotus stem biochar. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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16
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Liang Y, Li X, Yang F, Liu S. Tracing the synergistic migration of biochar and heavy metals based on 13C isotope signature technique: Effect of ionic strength and flow rate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160229. [PMID: 36402328 DOI: 10.1016/j.scitotenv.2022.160229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/01/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Understanding the transport of biochar and heavy metals is important for evaluation of the long-term stability and ecotoxicity of heavy metals after biochar remediation. In this study, 13C-labelled biochar was prepared to investigate the synergistic down migration of biochar and heavy metals in the soil profile, and the effect of ionic strength (IS) and flow rate was examined. Results showed that the 13C-labelled biochar with high δ13C (249.3 ‰) was suitable for tracing the migration of biochar without influencing its adsorption for heavy metals (i.e., Cu2+ and Cd2+). Both higher IS and flow rate were favorable for the release of biochar, but higher IS inhibited the transport of biochar in soil profile, which was attributed to the enhanced primary- and secondary-minimum deposition based on the Derjaguin-Landau-Verwey-Overbeek (DLVO) analysis. The transport of Cu2+ and Cd2+ was facilitated by high IS and flow rate. The release of Cd from biochar was mainly affected by IS, due to ion exchange and a weaker electrostatic attraction to biochar at higher IS, while that of Cu was mainly affected by flow rate related to co-migration of metal with biochar. Metal-biochar particle was the dominant form to migrate in upper soil layer, whereas, soluble Cd2+ and Cu2+ desorbed from biochar were the dominant forms that migrated to the deeper soil. The synergistic down migration of biochar and heavy metals might pose less risks than the sole migration of soluble metals. That is, high IS might cause higher risks than high flow rate even though biochar and metals might transport further with high flow rate. These findings will advance the current knowledge on the migration risk involved in the in-situ remediation of heavy metal-contaminated soils by biochar.
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Affiliation(s)
- Yuan Liang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215000, China.
| | - Xingran Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215000, China; School of Environmental Science and Engineering, Tianping College of Suzhou University of Science and Technology, Suzhou 215000, China
| | - Fan Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sheng Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215000, China
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Meng Z, Huang S, Lin Z. Effects of modification and co-aging with soils on Cd(II) adsorption behaviors and quantitative mechanisms by biochar. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:8902-8915. [PMID: 35041169 DOI: 10.1007/s11356-022-18637-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
In this study, original and two KMnO4-modified rice straw biochars (pre- and postmodification) were prepared, which were all pyrolysed at 400 °C. Premodified biochar had the largest Cd adsorption capacity, strongest acid and solute buffering capacity, which benefited from the increase of carbonate content, specific surface area, and the emergence of Mn(II) and MnOx through modification. Original and premodified biochars were then conducted four types of aging process by an improved three-layer mesh method, namely, aging without soil and co-aging with acid (pH = 5.00), neutral (pH = 7.00), and alkaline (pH = 8.30) soils. The adsorption capacities of modified biochar were always larger than those of original biochar after aging processes. After four aging processes, Cd(II) adsorption capacities were basically in the order of aged biochar without soil > biochar co-aged with alkaline soil > biochar co-aged with neutral soil > biochar co-aged with acid soil, and KMnO4-modified biochar was always better than original biochar after co-aging with soils. The dominant adsorption mechanism of original and premodified biochars (fresh and aged) for Cd(II) was all the precipitation and adsorption with minerals (accounted for 58.55 ~ 85.55%). In this study, we highlighted that biochar remediation for Cd should be evaluated by co-aging with soil instead of aging without soil participation.
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Affiliation(s)
- Zhuowen Meng
- State Key Laboratory of Water Resources and Hydropower Engineering Sciences, Wuhan University, Wuhan, 430072, China
| | - Shuang Huang
- State Key Laboratory of Water Resources and Hydropower Engineering Sciences, Wuhan University, Wuhan, 430072, China.
| | - Zhongbing Lin
- State Key Laboratory of Water Resources and Hydropower Engineering Sciences, Wuhan University, Wuhan, 430072, China
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18
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Alghamdi AG, Alasmary Z. Efficient Remediation of Cadmium- and Lead-Contaminated Water by Using Fe-Modified Date Palm Waste Biochar-Based Adsorbents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:802. [PMID: 36613124 PMCID: PMC9819486 DOI: 10.3390/ijerph20010802] [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: 11/26/2022] [Revised: 12/27/2022] [Accepted: 12/30/2022] [Indexed: 06/17/2023]
Abstract
Heavy metals pollution of water resources is an emerging concern worldwide and seeks immediate attention. Date palm waste was transformed into biochar (BC), which was further modified through Fe-intercalation for the production of magnetic biochar (Fe-BC) in this study. The produced BC and Fe-BC were analyzed for chemical, proximate, surface, and elemental composition. The efficiency of the produced adsorbents to decontaminate the water from Cd2+ and Pb2+ ions was investigated through kinetics and an isotherm adsorption batch trial. Kinetics adsorption data fit well with the pseudo-second order and power function model, while equilibrium data were described well with the Langmuir and Freundlich isotherms. The maximum adsorption capacity as shown by the Langmuir model was the highest for Fe-BC for both Cd2+ (48.44 mg g-1) and Pb2+ (475.14 mg g-1), compared with that of BC (26.78 mg g-1 Cd2+ and 160.07 mg g-1 Pb2+). Both materials showed higher removal of Pb (36.34% and 99.90% on BC and Fe-BC, respectively) as compared with Cd (5.23% and 12.28% on BC and Fe-BC, respectively) from a binary solution. Overall, Fe-BC was more efficient in adsorbing both of the studied metals from contaminated water. The application of Fe-BC resulted in 89% higher adsorption of Cd2+ and 197% higher adsorption of Pb2+ from aqueous media as compared to BC. Kinetics and isotherm models as well as SEM-EDS analysis of the post-adsorption adsorbents suggested multiple adsorption mechanisms including chemisorption, pore-diffusion, and electrostatic interactions.
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Zhou Z, Liu P, Wang S, Finfrock YZ, Ye Z, Feng Y, Li X. Iron-modified biochar-based bilayer permeable reactive barrier for Cr(VI) removal. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129636. [PMID: 35908398 DOI: 10.1016/j.jhazmat.2022.129636] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/11/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
Iron (Fe)-modified biochar (FeBC) has been developed to remove hexavalent chromium (Cr(VI)) from groundwater and is suitable for use in permeable reactive barriers (PRBs). However, Cr(VI) removal behavior and chemical processes in FeBC-based PRBs are not fully understood, and the potential for Fe release has not been addressed. In this study, three FeBC-based PRBs were assessed in column experiments for 563 days with respect to their ability to remove Cr(VI). Bilayer column filled with FeBC+limestone and BC+limestone in two separate layers (FeBC_Ca_BC) showed the best performance in terms of Cr(VI) removal with a low treatment cost. The corrosion of FeBC was mainly related to pH and Cr(VI) concentration rather than flow rate. Leached Fe was attenuated by BC and limestone and reutilized in FeBC_Ca_BC. Cr(VI) was reduced to Cr(III) and then adsorbed or precipitated on the biochars. Cr and Fe formed inner-sphere complexes and then transformed from double corner sharing to edge sharing. During the reaction, Cr penetrated from the surface to the interior of the biochars and became a more stable species. This study provides evidence of the effectiveness of a new combination of biochars for Cr(VI) removal and insights into the reaction mechanisms.
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Affiliation(s)
- Ziyi Zhou
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Peng Liu
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China.
| | - Sheng Wang
- Zhejiang Geological Prospecting Institute, China Chemical Geology and Mine Bureau, Hangzhou 310000, China
| | - Y Zou Finfrock
- Structural Biology Center, X-ray Science Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Zhihang Ye
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Yu Feng
- School of Environmental Studies & State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China
| | - Xiaodan Li
- China Northeast Municipal Engineering Design and Research Institute Co., Ltd., Changchun 130021, China
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20
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Diao Y, Zhou L, Ji M, Wang X, Dan Y, Sang W. Immobilization of Cd and Pb in soil facilitated by magnetic biochar: metal speciation and microbial community evolution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:71871-71881. [PMID: 35606582 DOI: 10.1007/s11356-022-20750-9] [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: 03/15/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
The preparation of magnetic biochar from sewage sludge and rice straw for heavy metal contaminated soil remediation has greater application prospects, but its remediation mechanism was rarely considered by combining soil physicochemical properties with microbial community. In this study, the effects of magnetic sewage sludge biochar (SSB) and rice straw biochar (RSB) on Cd and Pb immobilization in paddy soil were compared and analyzed by 60-day soil incubation experiments. The results illustrated that DTPA-Cd and DTPA-Pb were reduced by 51.53% (43.07%) and 53.57% (50.47%), while the percentage of residual fraction of the BCR procedure was enhanced by 31.27% (30.78%) of Cd and 27.25% (23.22%) of Pb in the SSB (RSB) treatment, respectively. Fe was detected on both SSB and RSB surfaces, but SSB had rougher and a larger specific surface area compared to RSB. The addition of SSB and RSB in paddy soil increased soil pH and TOC content, and affected the diversity and species of soil microbial community. Compared with the CK group, the relative abundance of Proteobacteria, Bacteroidota, and Lysobacter decreased, and the relative abundance of Actinobacteriota, Pontibacter, and Alkaliphilus increased with SSB and RSB treatments, all of which reflected the bioavailability of Cd and Pb reduction.
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Affiliation(s)
- Yinzhu Diao
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Lei Zhou
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Mengyuan Ji
- CRIBI Biotechnology Center, University of Padua, 35121, Padua, Italy
| | - Xiaoxia Wang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Yitong Dan
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Wenjing Sang
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China.
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21
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Du T, Bogush A, Mašek O, Purton S, Campos LC. Algae, biochar and bacteria for acid mine drainage (AMD) remediation: A review. CHEMOSPHERE 2022; 304:135284. [PMID: 35691393 DOI: 10.1016/j.chemosphere.2022.135284] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/05/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Acid mine drainage (AMD) is a global issue and causes harmful environmental impacts. AMD has high acidity and contains a high concentration of heavy metals and metalloids, making it toxic to plants, animals, and humans. Traditional treatments for AMD have been widely used for a long time. Nevertheless, some limitations, such as low efficacy and secondary contamination, have led them to be replaced by other methods such as bio-based AMD treatments. This study reviewed three bio-based treatment methods using algae, biochar, and bacteria that can be used separately and potentially in combination for effective and sustainable AMD treatment to identify the removal mechanisms and essential parameters affecting AMD treatment. All bio-based methods, when applied as a single process and in combination (e.g. algae-biochar and algae-bacteria), were identified as effective treatments for AMD. Also, all these bio-based methods were found to be affected by some parameters (e.g. pH, temperature, biomass concentration and initial metal concentration) when removing heavy metals from AMD. However, we did not identify any research focusing on the combination of algae-biochar-bacteria as a consortium for AMD treatment. Therefore, due to the excellent performance in AMD treatment of algae, biochar and bacteria and the potential synergism among them, this review provides new insight and discusses the feasibility of a combination of algae-biochar-bacteria for AMD treatment.
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Affiliation(s)
- Tianhao Du
- Department of Civil, Environmental & Geomatic Engineering, Faculty of Engineering, University College London, London, WC1E 6BT, United Kingdom
| | - Anna Bogush
- Centre for Agroecology, Water and Resilience, Coventry University, Coventry, CV8 3LG, United Kingdom
| | - Ondřej Mašek
- UK Biochar Research Centre, School of Geoscience, The University of Edinburgh, Edinburgh, EH8 9YL, United Kingdom
| | - Saul Purton
- Department of Structural and Molecular Biology, Division of Biosciences, University College London, London, WC1E 6BT, United Kingdom
| | - Luiza C Campos
- Department of Civil, Environmental & Geomatic Engineering, Faculty of Engineering, University College London, London, WC1E 6BT, United Kingdom.
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22
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Srivastava V, Karim AV, Babu DS, Nidheesh PV, Kumar MS, Gao B. Metal‐Loaded Biochar for the Removal of Arsenic from Water: A Critical Review on Overall Effectiveness, Governing Mechanisms, and Influential Factors. ChemistrySelect 2022. [DOI: 10.1002/slct.202200504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Vartika Srivastava
- CSIR-National Environmental Engineering Research Institute Nagpur Maharashtra 440020 India
| | - Ansaf V. Karim
- Environmental Science and Engineering Department Indian Institute of Technology Bombay 400076 India
| | - Davuluri Syam Babu
- CSIR-National Environmental Engineering Research Institute Nagpur Maharashtra 440020 India
| | | | - Manukonda Suresh Kumar
- CSIR-National Environmental Engineering Research Institute Nagpur Maharashtra 440020 India
| | - Bin Gao
- Department of Agricultural and Biological Engineering University of Florida Gainesville FL 32611 USA
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23
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Lebrun M, Miard F, Trakal L, Bourgerie S, Morabito D. The reduction of the As and Pb phytotoxicity of a former mine technosol depends on the amendment type and properties. CHEMOSPHERE 2022; 300:134592. [PMID: 35430201 DOI: 10.1016/j.chemosphere.2022.134592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/20/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
In remediation of metal(loid) polluted soils, it is crucial to improve soil conditions and reduce metal(loid) toxicity to permit plant growth. To do that, amendments, such as biochar, activated carbon, and redmud, can be applied to the soil. Their effects are dependent on their type and properties. The aims of this study were thus to evaluate the potential of diverse biochars, activated carbons, and redmuds to reduce phytotoxicity of a former mine technosol polluted with As and Pb. Two pots experiments were set up. The first one applied on Pontgibaud technosol ten biochars, eight activated carbons, and three redmuds, at 2% for the biochars and activated carbons and 1% for the redmud. Soil pore water properties (pH, electrical conductivity), metal(loid) mobility, and Phaseolus vulgaris growth were monitored. In a second experiment, the five best amendments, one redmud associated with two biochars and two activated carbons, selected based on their ability to improve soil conditions, immobilize metal(loid)s and improve plant growth, were applied. The same plant species was used and soil and plant parameters were measured. Results demonstrated that not all amendments were capable of ameliorating soil conditions and reducing soil phytotoxicity. Moreover, the five selected amendments (biochars from oak bark sapwood and bamboo, activated carbons from vegetal feedstock chemically activated and physically activated, modified redmud) showed good sorption capacity towards Pb, with maximum sorption capacity between 63 and 217 mg g-1, depending on the amendment, and their combined application led to better soil properties improvement than the single amendments. However, plant growth was only ameliorated further than a single application in the redmud-biochar combination but not in the association of redmud with activated carbon. This study is one of the first to deliver a rapid phytotoxicity test screening demonstrating that redmud associated with particular biochar could be beneficial in reducing the phytotoxicity of technosol polluted with As and Pb and thus allow plant growth and a phytomanagement process.
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Affiliation(s)
- Manhattan Lebrun
- University of Orleans, INRA USC1328, LBLGC EA 1207, Rue de Chartres, BP 6759, 45067, Orléans, Cedex 2, France.
| | - Florie Miard
- University of Orleans, INRA USC1328, LBLGC EA 1207, Rue de Chartres, BP 6759, 45067, Orléans, Cedex 2, France
| | - Lukáš Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500, Praha 6, Suchdol, Czech Republic
| | - Sylvain Bourgerie
- University of Orleans, INRA USC1328, LBLGC EA 1207, Rue de Chartres, BP 6759, 45067, Orléans, Cedex 2, France
| | - Domenico Morabito
- University of Orleans, INRA USC1328, LBLGC EA 1207, Rue de Chartres, BP 6759, 45067, Orléans, Cedex 2, France
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24
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Biochar-based fertilizers and their applications in plant growth promotion and protection. 3 Biotech 2022; 12:136. [PMID: 35646504 DOI: 10.1007/s13205-022-03195-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 04/28/2022] [Indexed: 11/01/2022] Open
Abstract
Soil is an integral part of the ecosystem because it serves as a habitat for various microorganisms and lays the foundation for supporting plant growth and development. Therefore, factors such as increased anthropogenic activities hand by hand with other natural processes that harm the ecosystem may eventually lead to a decline in soil quality and fertility, hindering the growth of plants and soil microbial communities. Given the current global scenario of increasing human intervention, it is essential to find effective measures and reliable technologies to restore soil quality. Biochar is an emerging soil ameliorant employed for soil health restoration and is primarily generated through the anoxygenic pyrolysis of biomass. The biochar application in soil remediation may be beneficial due to biochar's unique physicochemical properties, including high carbon and metal fixation abilities. In addition, biochar possesses abilities to reduce the plant's environmental stress injuries. This review briefly overviewed the ingredients and mechanism of biochar productions. We then emphatically reviewed the advances in biochar applications in soil bioremediation, soil microflora growth stimulation, and the alleviation of various biotic and abiotic stresses in plants.
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25
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Remediation of Cd2+ in aqueous systems by alkali-modified (Ca) biochar and quantitative analysis of its mechanism. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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26
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Srivastav AL, Pham TD, Izah SC, Singh N, Singh PK. Biochar Adsorbents for Arsenic Removal from Water Environment: A Review. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 108:616-628. [PMID: 34536097 DOI: 10.1007/s00128-021-03374-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Arsenic intake can cause human health disorders to the lungs, urinary tract, kidney, liver, hyper-pigmentation, muscles, neurological and even cancer. Biochar is potent, economical and ecologically sound adsorbents for water purification. After surface modifications, adsorption capacity of biochar significantly increased due to high porosity and reactivity. Adsorption capacities of the biochar derived from the municipal solid waste and KOH mixed municipal solid waste were increased from 24.49 and 30.98 mg/g for arsenic adsorption. Complex formation, electrostatic behavior and ion exchange are important mechanisms for arsenic adsorption. Organic arsenic removal using biochar is a major challenge. Hence, more innovative research should be conducted to achieve one of the 17 sustainable development goals of the United Nations i.e. "providing safe drinking water for all". This review is focused on the arsenic removal from water using pristine and modified biochar adsorbents. Recent advances in production methods of biochar adsorbents and mechanisms of arsenic removal from water are also illustrated.
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Affiliation(s)
- Arun Lal Srivastav
- Chitkara University School of Engineering and Technology, Chitkara University, Himachal Pradesh, 174103, India.
| | - Tien Duc Pham
- Faculty of Chemistry, University of Science, Vietnam National University, Hanoi - 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Vietnam.
| | - Sylvester Chibueze Izah
- Department of Microbiology, Faculty of Science, Bayelsa Medical University, Yenagoa, Bayelsa State, Nigeria
| | - Nirankar Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Haryana, India
| | - Prabhat Kumar Singh
- Department of Civil Engineering, Indian Institute of Technology (BHU), Varanasi, India
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27
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Fei YH, Zhang Z, Ye Z, Wu Q, Tang YT, Xiao T. Roles of soluble minerals in Cd sorption onto rice straw biochar. J Environ Sci (China) 2022; 113:64-71. [PMID: 34963550 DOI: 10.1016/j.jes.2021.05.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/06/2021] [Accepted: 05/18/2021] [Indexed: 06/14/2023]
Abstract
Transforming to biochar provides an environmentally friendly approach for crop residue reutilization, which are usually applied as sorbent for heavy metal removal. As typical silicon-rich material, the specific sorptive mechanisms of rice straw derived biochar (RSBC) are concerned, especially at the low concentration range which is more environmentally relevant. In the present study, Cd sorption onto RSBCs at the concentration of ≤ 5 mg/L was investigated. The sorptive capacity was positively correlated with the pyrolytic temperature of the biochar and the environmental pH value. Water soluble minerals of the RSBCs played the dominant roles in Cd sorption, contributing 29.2%, 62.5% and 82.9% of the total sorption for RSBCs derived under 300°C, 500°C and 700°C, respectively. Increased number of cations, dominantly K+, were exchanged during the sorption. Coprecipitation with cations and carbonates may also be contributive to the sorption. The dissolution of silicon-containing minerals was found to be declined during sorption, suggesting its involvement in the sorption process, possibly through precipitation. Whilst, the sparingly soluble silicate crystals may impose ignorable role in the sorption. Complexation with organic groups is only a minor mechanism in Cd sorption, compared to the much more dominant roles of the inorganic ashes.
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Affiliation(s)
- Ying-Heng Fei
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zuannan Zhang
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhuofeng Ye
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Qihang Wu
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Ye-Tao Tang
- School of Environment Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
| | - Tangfu Xiao
- School of Environment Science and Engineering, Guangzhou University, Guangzhou 510006, China.
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28
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Maroušek J, Trakal L. Techno-economic analysis reveals the untapped potential of wood biochar. CHEMOSPHERE 2022; 291:133000. [PMID: 34808200 DOI: 10.1016/j.chemosphere.2021.133000] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/25/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
The United Nations estimates the rate of deforestation over 10 million hectares per year, with additional infested wood available due to drought, bark beetle calamity and other damage vectors. Processing the hard-to-reach infested wood into biochar via mobile pyrolysis units seems to be a good option for fire prevention. However, since most biochar is currently produced mainly from biological waste, there is not enough experience with wood biochar on a large scale. Review of current knowledge, followed by techno-economic assessment reveals that following the chemical composition of the feedstock, wood biochar outperforms other types of biochar in terms of high porosity. Therefore, wood biochar shows excellent results in increasing the amount of plant-available water content in soil and appears to be an excellent tool for recycling nutrients (especially into plant-available forms of phosphorus and nitrogen). The overall positive effects of biochar application change from abiotic to biotic over time because as it decays, many of its physical properties disappear, but it can boost soil microbial communities on which soil fertility depends. As global climate change creates a wide range of factors that damage forest cover, wood biochar consequently represents untapped potential in the field of soil, nutrient, and energy management.
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Affiliation(s)
- Josef Maroušek
- Institute of Technology and Business in České Budějovice, Faculty of Technology, Okružní 517/10, 370 01, České Budějovice, Czech Republic; University of South Bohemia in České Budějovice, Faculty of Agriculture, Studentská 1668, 370 05, České Budějovice, Czech Republic; Tomas Bata University in Zlín, Faculty of Management and Economics Mostní 5139, 760 01 Zlín, Czech Republic.
| | - Lukáš Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague Kamýcká 129, 165 00, Praha, Suchdol, Czech Republic
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29
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Veselská V, Šillerová H, Hudcová B, Ratié G, Lacina P, Lalinská-Voleková B, Trakal L, Šottník P, Jurkovič Ľ, Pohořelý M, Vantelon D, Šafařík I, Komárek M. Innovative in situ remediation of mine waters using a layered double hydroxide-biochar composite. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127136. [PMID: 34879539 DOI: 10.1016/j.jhazmat.2021.127136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/09/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
The current demand for alternative water sources requires the incorporation of low-cost composites in remediation technologies. These represent a sustainable alternative to more expensive, commercially used adsorbents. The main objective of this comprehensive field-scale study was to incorporate the layered double hydroxides (LDHs) into the hybrid biochar-based composites and apply an innovative material to remediate As/Sb-rich mine waters. The presence of hydrous Fe oxides (HFOs) within the composite enhanced the total adsorption efficiency of the composite for As(V) and Sb(V). The kinetic data fitted a pseudo-second order model. Equilibrium experiments confirmed that the composite had a stronger interaction with As(V) than with Sb(V). The efficient removal of As(V) from mine water was achieved in both batch and continuous flow column systems, reaching up to 98% and 80%, respectively. Sb(V) showed different behavior to As(V) during mine water treatment, reaching adsorption efficiencies of up to 39% and 26% in batch and column experiments, respectively. The migration of Sb(V) in mine water was mostly attributed to its dispersion before it was able to show affinity to the composite. In general, the proposed column technology is suitable for the field remediation of small volumes of contaminated water, and thus has significant commercial potential.
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Affiliation(s)
- Veronika Veselská
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic.
| | - Hana Šillerová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic
| | - Barbora Hudcová
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic
| | - Gildas Ratié
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic; Univ. Orléans, CNRS, BRGM, ISTO, UMR 7327, F-45071 Orléans, France
| | - Petr Lacina
- GEOtest, a.s., Šmahova 1244/112, 627 00 Brno, Czech Republic
| | | | - Lukáš Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic
| | - Peter Šottník
- Department of Mineralogy, Petrology and Mineral Deposits, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Ľubomír Jurkovič
- Department of Geochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovicova 6, 842 15 Bratislava, Slovakia
| | - Michael Pohořelý
- Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, v. v. i., Rozvojová 135, 165 02 Prague-Suchdol, Czech Republic; Department of Power Engineering, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
| | - Delphine Vantelon
- SOLEIL synchrotron, L'orme des Merisiers, Saint Aubin BP48 91192 Gif-sur-Yvette Cedex, France
| | - Ivo Šafařík
- Department of Nanobiotechnology, Biology Centre, ISB, CAS, Na Sádkách 7, 370 05 České Budějovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcka 129, 165 00 Prague-Suchdol, Czech Republic
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30
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Oumabady S, Selvaraj PS, Periasamy K, Veeraswamy D, Ramesh PT, Palanisami T, Ramasamy SP. Kinetic and isotherm insights of Diclofenac removal by sludge derived hydrochar. Sci Rep 2022; 12:2184. [PMID: 35140262 PMCID: PMC8828768 DOI: 10.1038/s41598-022-05943-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/19/2022] [Indexed: 11/17/2022] Open
Abstract
Recently, hydrothermal carbonization emerges as the most viable option for the management of solid waste with high moisture content. Sludge derived hydrochar is used as an adsorbent for emerging contaminants or micro-pollutants in the domain of sustainability. Current study demonstrates the KOH activation of hydrochar produced from paper board mill sludge and evaluates its removal potential of a Non-steroidal anti-inflammatory drug, Diclofenac from aqueous solution. The activated hydrochars exhibited porous, spherical micro-structures with higher fraction of oxygenated functional groups paving way for the efficient adsorption of Diclofenac. The effect of initial Diclofenac concentration and contact time was ascertained using adsorption kinetics and isotherms. The adsorption kinetics exhibited second-order reaction for all adsorbents indicating higher coefficient of determination (R2 > 0.9). The Diclofenac adsorption on hydrochars followed Langmuir isotherm model with the post-activated hydrochar recording a highest adsorption capacity of 37.23 mg g-1 in 40 mg L-1 initial Diclofenac concentration at 15 h equilibrium time.
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Affiliation(s)
- Sadish Oumabady
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | - Paul Sebastian Selvaraj
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641 003, India.
| | - Kalaiselvi Periasamy
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | - Davamani Veeraswamy
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
| | | | - Thava Palanisami
- Global Innovative Centre for Advanced Nanomaterials (GICAN), The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Sangeetha Piriya Ramasamy
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
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31
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Dong J, Shen L, Shan S, Liu W, Qi Z, Liu C, Gao X. Optimizing magnetic functionalization conditions for efficient preparation of magnetic biochar and adsorption of Pb(II) from aqueous solution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151442. [PMID: 34742966 DOI: 10.1016/j.scitotenv.2021.151442] [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: 07/09/2021] [Revised: 10/20/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
Recoverable magnetic biochar has great potential for treating wastewater contaminants such as Pb(II). However, whether magnetic modification could enhance metal adsorption efficiency is currently contradictory in the literature mainly due to the differences in selecting various magnetic functionalization conditions. Considering this gap in knowledge, the effects of magnetic functionalization method (impregnation and precipitation), concentration of precursor iron solution (0.01-1 M), and pyrolysis temperature (300-700 °C) on the characteristics and Pb(II) adsorption capacity of biochar were systematically investigated in this paper. Results indicated that Fe3O4 was the main product for magnetic biochars synthesized using the impregnation (denoted as FWFe(3)) and precipitation methods (denoted as FWFe(2)). Magnetic functionalization resulted in remarkably increased pH and more negative zeta potential for FWFe(2) samples, whereas FWFe(3) samples showed the opposite trends. The adsorption of Pb(II) on different biochars fitted the pseudo-second order model and the Langmuir model. The maximum adsorption capacity was 817.64 mg/g for FWFe(2)1M700C (precipitation by 1 M of Fe(II)/Fe(III), pyrolysis at 700 °C), outperforming FWFe(3) and pristine biochar samples by around 5-13 times. Mechanism study indicated that the adsorption mainly involved electrostatic attraction, ion exchange, co-precipitation, and complexation. Pb(II) adsorption capacity was strongly dependent on the alkali pH of biochar. However, this efficiency was less affected by biochar surface area and its morphology. The higher pH of FWFe(2) samples not only led to an increased surface charge for stronger electrostatic attraction and ion exchange but also favored the formation of co-precipitates. By contrast, FWFe(3) samples showed a decreased adsorption capacity for Pb(II) with increased concentration of embedded iron. Overall, magnetic biochar, prepared using precipitation followed by high-temperature pyrolysis (such as, FWFe(2)1M700C), can be a promising adsorbent for Pb(II) adsorption from wastewater.
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Affiliation(s)
- Jun Dong
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027 Hangzhou, China; Zhejiang Energy R&D Institute Co., Ltd., 311121 Hangzhou, China; Key Laboratory of Energy Conservation & Pollutant Control Technology for Thermal Power of Zhejiang Province, 311121 Hangzhou, China.
| | - Lingfang Shen
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, 310023 Hangzhou, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province, Zhejiang University of Science and Technology, 310023 Hangzhou, China
| | - Wanpeng Liu
- Power China Huadong Engineering Co., Ltd., 311122 Hangzhou, China
| | - Zhifu Qi
- Zhejiang Energy R&D Institute Co., Ltd., 311121 Hangzhou, China; Key Laboratory of Energy Conservation & Pollutant Control Technology for Thermal Power of Zhejiang Province, 311121 Hangzhou, China
| | - Chunhong Liu
- Zhejiang Energy R&D Institute Co., Ltd., 311121 Hangzhou, China; Key Laboratory of Energy Conservation & Pollutant Control Technology for Thermal Power of Zhejiang Province, 311121 Hangzhou, China
| | - Xiang Gao
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, 310027 Hangzhou, China
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Liu X, Li G, Chen C, Zhang X, Zhou K, Long X. Banana stem and leaf biochar as an effective adsorbent for cadmium and lead in aqueous solution. Sci Rep 2022; 12:1584. [PMID: 35091639 PMCID: PMC8799728 DOI: 10.1038/s41598-022-05652-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/10/2022] [Indexed: 11/09/2022] Open
Abstract
Lead (Pb) and cadmium (Cd) are toxic heavy metals commonly found in aqueous environments. Biochar as a green adsorbent generated from biomass feedstock may be used for effective removal of these heavy metals. This study investigated the adsorption kinetics and isotherms of Pb2+ and Cd2+ in aqueous solutions at different pH by biochar prepared from banana stem and leaf (BSL-BC) at 400 °C. Characterizations using scanning electron microscope, X-ray diffraction, and Fourier-transform infrared spectroscopy showed that the synthesized BSL-BC had rough surface, porous structure, and oxygen-containing functional groups. The adsorption of Pb2+ and Cd2+ onto BSL-BC reached equilibrium in 8 h and 200 min, respectively, with faster adsorption attained at higher pH and the optimum pH occurred at 5 (Pb2+) and 8 (Cd2+). All adsorption kinetic data followed the pseudo-second-order rate model. The adsorption isotherm data of Pb2+ and Cd2+ could be well-described by the Langmuir and Freundlich models, respectively, whereas neither the Temkin or Dubinin-Radushkevich models provided satisfactory fitting results. The maximum adsorption capacities for Pb2+ and Cd2+ were 302.20 and 32.03 mg/g, respectively. The calculated mechanism contributions showed that complexation with oxygen-containing functional groups, ion exchange, mineral precipitation, and Pb2+/Cd2+-π coordination accounted for 0.1%, 8.4%, 88.8%, and 2.6% to Pb2+ adsorption, and 0.4%, 6.3%, 83.0%, and 10.4% to Cd2+ adsorption, respectively. Therefore, mineral precipitation was likely the major mechanism responsible for adsorption of both Pb2+ and Cd2+ by BSL-BC. The results suggest that the synthesized BSL-BC has great potential for adsorption of Pb2+ and Cd2+ from aqueous solutions.
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Affiliation(s)
- Xiyang Liu
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China
| | - Gaoxiang Li
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China
| | - Chengyu Chen
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China.
| | - Xiaorui Zhang
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China
| | - Kuan Zhou
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China
| | - Xinxian Long
- Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, 483 Wushan Road, Guangzhou, 510642, Guangdong, China.
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Mahmoud MA. Separation of Cd (II) onto Polypyrrole nitrogen porous carbon composite in the continuous column system. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2021.1978811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohamed Ahmed Mahmoud
- Chemical Engineering Department, College of Engineering, Jazan University, Jazan, Saudi Arabia
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Zong Y, Chen H, Malik Z, Xiao Q, Lu S. Comparative study on the potential risk of contaminated-rice straw, its derived biochar and phosphorus modified biochar as an amendment and their implication for environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118515. [PMID: 34793911 DOI: 10.1016/j.envpol.2021.118515] [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: 07/01/2021] [Revised: 10/14/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Direct application of contaminated-rice straw (CRS) to soil can cause the secondary pollution in agricultural land because of high content of Cd in rice straw. This study employed biochar or modified biochar technique to reduce the potential pollution risk of Cd in CRS. In the pot experiment, the CRS, straw biochar prepared at 300 °C (B300) and 500 °C (B500), and phosphorus modified biochar pyrolyzed at 300 °C (PB300) and 500 °C (PB500) were added at dosage of 5% into three typical paddy soils. The results showed that CRS and its derived biochar could enhance soil pH, EC, Eh, organic carbon, exchangeable base cations (K+, Na+, Ca2+ and Mg2+), and available phosphate. The application of CRS, biochar and phosphorus modified biochar significantly increased the contents of total Cd in soils relative to control soil. Compared to CRS, the biochar application (especially the PB500) decreased the contents of 0.01M CaCl2-extractable Cd. The application of CRS significantly increased the content of exchangeable Cd fraction (F1), whereas biochar increased residual Cd content (F4). The biochar and phosphorous modified biochar significantly decreased the contents of bioavailable Cd in soils compared to CRS application. The increased soil pH and dissolve organic matter were found to be the main factors in reducing the release of Cd in biochar. The possible mechanisms of biochar in reducing bioavailability of Cd were to significantly increase soil pH, enhance the complexation of Cd ions, and promote the transformation of Cd from easily available to stable (residual) forms. It could conclude that conversion of contaminated rice straw into biochar was an efficient way to minimize Cd availability in soil and reduce the pollution risk of Cd in rice straw.
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Affiliation(s)
- Yutong Zong
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Han Chen
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zaffar Malik
- Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Qing Xiao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shenggao Lu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Cheng S, Zhao S, Guo H, Xing B, Liu Y, Zhang C, Ma M. High-efficiency removal of lead/cadmium from wastewater by MgO modified biochar derived from crofton weed. BIORESOURCE TECHNOLOGY 2022; 343:126081. [PMID: 34610424 DOI: 10.1016/j.biortech.2021.126081] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
The adsorption performance and mechanisms of Pb2+ and Cd2+ in wastewater using MgO modified biochar derived from crofton weed (MBCW600) are investigated. The Pb2+ and Cd2+ adsorption capacities of MBCW600 by the Hill model reach 384.08 mg/g and 207.02 mg/g, respectively, which is larger than that of original biochar. Pb2+ could be more easily captured by MBCW600 compared to Cd2+ in the multimetal system. Mg2+ contributes to Pb2+ and Cd2+ adsorption among coexisting cations. The exhausted MBCW600 could be well regenerated by simple method after use. The adsorption mechanism study indicates that Pb2+ and Cd2+ removal are primary contributed to mineral precipitation and ion exchange. The effective treatment volumes of Pb2+ and Cd2+ wastewater achieve 3050 mL and 2150 mL in the fixed-bed column experiment, respectively. Therefore, MBCW600 presents remarkable adsorption capability, excellent recoverability and large throughput, which shows the potential application in future treatment of wastewater containing heavy metal.
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Affiliation(s)
- Song Cheng
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, PR China
| | - Saidan Zhao
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
| | - Hui Guo
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, PR China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, PR China
| | - Baolin Xing
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, PR China.
| | - Yongzhi Liu
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
| | - Chuanxiang Zhang
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China; Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo 454003, PR China
| | - Mingjie Ma
- Henan Key Laboratory of Coal Green Conversion, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
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de Lima Veloso V, da Silva FBV, Dos Santos NM, do Nascimento CWA. Phytoattenuation of Cd, Pb, and Zn in a Slag-contaminated Soil Amended with Rice Straw Biochar and Grown with Energy Maize. ENVIRONMENTAL MANAGEMENT 2022; 69:196-212. [PMID: 34480611 DOI: 10.1007/s00267-021-01530-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Biochar has attracted interest due to its ability to improve soil fertility, soil carbon, and crop yield. Also, biochar can adsorb metals and render them less bioavailable. We investigated the soil availability, sequential extraction, and maize uptake of Cd, Pb, and Zn in a highly contaminated soil amended with rice straw biochar rates (0.0, 5.0, 10.0, 20.0, and 30.0 Mg ha-1). We hypothesized that biochar application to the soil cultivated with maize attenuates metal toxicity and mobility in slag-polluted soils near an abandoned Pb smelting plant in Brazil. Results showed that applying biochar increased the soil organic carbon, CEC, and P up to 27, 30, and 107, respectively. Plant accumulation of P and N was 104 and 32% higher than control, while aerial and root biomasses were increased by 18 and 23%. The sequential extraction showed that Pb and Zn in the original soil were retained mainly in residual fractions (94 and 87%, respectively), while Cd was mostly allocated in the organic fraction (47%). Biochar rates increased the proportion of Cd in the organic fraction to 85%, while Pb and Zn were redistributed mainly into iron oxides. The Cd, Pb, and Zn bioavailability assessed by DTPA decreased 32% in the biochar-amended soil, reducing plants' metal uptake. The maize biomass increase, metal soil bioavailability decrease, and low metal concentration in shoots driven by biochar indicate that phytoattenuation using rice straw biochar and maize cultivation could reduce risks to humans and the environment in the polluted sites of Santo Amaro.
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Affiliation(s)
- Venâncio de Lima Veloso
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros Street, Dois Irmãos, Recife, PE, 52171-900, Brazil
| | - Fernando Bruno Vieira da Silva
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros Street, Dois Irmãos, Recife, PE, 52171-900, Brazil
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Lee HS, Shin HS. Competitive adsorption of heavy metals onto modified biochars: Comparison of biochar properties and modification methods. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 299:113651. [PMID: 34474258 DOI: 10.1016/j.jenvman.2021.113651] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/05/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Various biochars (BCs) have been developed to remove heavy metals contained in road runoff; however, there is insufficient information regarding the competitive adsorption efficiency of modified BC with regard to heavy metals due to a lack of comparative evaluation based on BC properties and modification methods. In this study, three different types of BC (RBC: rice husk, WBC: wood chip, MBC: mixture) were modified following five different methods: acidic, alkaline, oxidic, and manganese oxide (MnOx) and iron oxide (FeOx) impregnation. The changes in the physicochemical and morphological properties of the modified BC were investigated, and the adsorption characteristics of three heavy metals (Cd, Pb, and Zn) under single and mixed conditions were compared and evaluated. The improvements in the BC properties varied for different BC types and modification methods; in particular, alkaline and manganese modification caused substantial the changes in the surface area and functional groups (such as aromatic ring, -OH, and Mn-O groups). The BC prepared by manganese oxide impregnation absorbed a high amount of heavy metals (>9.15 mg/g) even under mixed conditions through cation exchange and surface complexation. The distribution coefficient (Kd) of heavy metals was high in the order of Pb > Cd > Zn; thus, the adsorption of Pb replaced that of Zn in competitive adsorption due to the difference in their affinity to BC. Therefore, the results suggest that BC prepared by manganese oxide impregnation is suitable for removing heavy metals from road runoff, as it maintained high heavy metals adsorption regardless of the BC material, even under competitive conditions.
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Affiliation(s)
- Han-Saem Lee
- Department of Environment Engineering, Seoul National University of Science & Technology, Seoul, 01811, South Korea
| | - Hyun-Sang Shin
- Department of Environment Engineering, Seoul National University of Science & Technology, Seoul, 01811, South Korea.
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Benjedim S, Romero-Cano LA, Hamad H, Bailón-García E, Slovák V, Carrasco-Marín F, Pérez-Cadenas AF. Synthesis of Magnetic Adsorbents Based Carbon Highly Efficient and Stable for Use in the Removal of Pb(II) and Cd(II) in Aqueous Solution. MATERIALS 2021; 14:ma14206134. [PMID: 34683725 PMCID: PMC8539804 DOI: 10.3390/ma14206134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 08/30/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022]
Abstract
In this study, two alternative synthesis routes for magnetic adsorbents were evaluated to remove Pb(II) and Cd(II) in an aqueous solution. First, activated carbon was prepared from argan shells (C). One portion was doped with magnetite (Fe3O4+C) and the other with cobalt ferrite (CoFe2O4+C). Characterization studies showed that C has a high surface area (1635 m2 g−1) due to the development of microporosity. For Fe3O4+C the magnetic particles were nano-sized and penetrated the material’s texture, saturating the micropores. In contrast, CoFe2O4+C conserves the mesoporosity developed because most of the cobalt ferrite particles adhered to the exposed surface of the material. The adsorption capacity for Pb(II) was 389 mg g−1 (1.88 mmol g−1) and 249 mg g−1 (1.20 mmol g−1); while for Cd(II) was 269 mg g−1 (2.39 mmol g−1) and 264 mg g−1 (2.35 mmol g−1) for the Fe3O4+C and CoFe2O4+C, respectively. The predominant adsorption mechanism is the interaction between -FeOH groups with the cations in the solution, which are the main reason these adsorption capacities remain high in repeated adsorption cycles after regeneration with HNO3. The results obtained are superior to studies previously reported in the literature, making these new materials a promising alternative for large-scale wastewater treatment processes using batch-type reactors.
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Affiliation(s)
- Safa Benjedim
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Luis A. Romero-Cano
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales, Universidad Autónoma de Guadalajara, Av. Patria 1201, Zapopan 45129, Mexico
- Correspondence: (L.A.R.-C.); (A.F.P.-C.)
| | - Hesham Hamad
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Application (SRTA-City), Alexandria 21934, Egypt
| | - Esther Bailón-García
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Václav Slovák
- Department of Chemistry, Faculty of Science, University of Ostrava, 30, dubna 22, 702 00 Ostrava, Czech Republic;
| | - Francisco Carrasco-Marín
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
| | - Agustín F. Pérez-Cadenas
- Carbon Materials Research Group, Department of Inorganic Chemistry, Faculty of Sciences, University of Granada, Av. Fuente Nueva s/n., 18071 Granada, Spain; (S.B.); (H.H.); (E.B.-G.); (F.C.-M.)
- Correspondence: (L.A.R.-C.); (A.F.P.-C.)
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Liu J, Liu H, Yang X, Jia X, Cai M, Bao Y. Preparation of Si-Mn/biochar composite and discussions about characterizations, advances in application and adsorption mechanisms. CHEMOSPHERE 2021; 281:130946. [PMID: 34289614 DOI: 10.1016/j.chemosphere.2021.130946] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/10/2021] [Accepted: 05/17/2021] [Indexed: 06/13/2023]
Abstract
A novel Si-Mn binary modified biochar composite material (SMBC) was prepared after being sintered 450 °C for 2 h. The crystal structure, surface functional groups, surface morphology and element composition, specific surface area and pore structure were characterized by XRD, FTIR, XPS, SEM + EDS and BET etc. The results showed that the surface of SMBC was rough and loose, and the specific surface area increased to 35.4284 m2/g. Si and Mn were uniformly attached to the surface of biochar in the form of SiO2, MnOx, MnSiO3. Batch adsorption experiments showed that SMBC had a higher removal efficiency (139.06 mg/g, above 98%) for Cu(II) when the dosage was 2 g/L and pH = 6. The cycle experiments showed that SMBC had good reusability, and its regeneration efficiency still reached 80.24%. The leaching amount of Mn (0.65 mg/L) was greatly reduced and avoid second-pollution resulted from ion exchange, which was attributed to the existence of Si-O-Mn bonds, and they could help Mn adhere to the surface of biochar more stable. The adsorption process was dominated by single-layer chemical adsorption and mainly occurred in the membrane diffusion stage. Cu(II) mainly formed -COOCu, -OCu, Cu(OH)2, Cu(OH)2CO3, Si-O-Cu, Mn-O-Cu by the mechanisms such as precipitation (4.74%), ion exchange (13.81%), complexation and physical adsorption (total 81.45% of the two mechanisms). Among them, complexation was dominant in the adsorption process.
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Affiliation(s)
- Juan Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Honghao Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xiaoyu Yang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Xuping Jia
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Mengfan Cai
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
| | - Yongchao Bao
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, PR China.
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40
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Zong Y, Xiao Q, Malik Z, Su Y, Wang Y, Lu S. Crop straw-derived biochar alleviated cadmium and copper phytotoxicity by reducing bioavailability and accumulation in a field experiment of rice-rape-corn rotation system. CHEMOSPHERE 2021; 280:130830. [PMID: 34162097 DOI: 10.1016/j.chemosphere.2021.130830] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 06/13/2023]
Abstract
Biochar has the potential to control the bioavailability and transformation of heavy metals in soil, thereby ensuring the safe crop production. A three seasons field experiment was conducted to investigate the effect of crop straw-derived biochar on the bioavailability and crop accumulation of Cd and Cu in contaminated soil. Wheat straw biochar (WSB), corn stalk biochar (CSB), and rice husk biochar (RHB) were applied at the rate of 0, 1.125, and 2.25 × 104 kg ha-1, respectively. The results showed that all types of biochar significantly increased soil pH, organic carbon and cation exchangeable capacity (CEC), compared to the control. The reduction in DTPA extractable Cd and Cu contents was much greater under high dosage biochar application, with a prominence at RHB treatment throughout the three cropping seasons, compared to the control. Moreover, the biological accumulation of Cd and Cu in the grains of rapeseed and corn significantly decreased after biochar application. Linear regression also confirmed the effective role of biochar in controlling the translocation and accumulation of Cd and Cu due to their inactive bioavailability. In addition, the sequential extraction indicated that exchangeable fraction (EXF) of Cu and Cd had decreased, while residual fraction (RSF) had increased under all biochar amendments. Contrarily, the oxidizable fraction (OXF) of Cd decreased while OXF of Cu increased under biochar treatments. Biochar application, especially RHB, could be an effective measure to enhance Cd and Cu adsorption and immobilization in polluted soils and thereby reducing its uptake and translocation to crops.
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Affiliation(s)
- Yutong Zong
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qing Xiao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zaffar Malik
- Department of Soil Science, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Yuan Su
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yefeng Wang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shenggao Lu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Ke B, Nguyen H, Bui XN, Bui HB, Nguyen-Thoi T. Prediction of the sorption efficiency of heavy metal onto biochar using a robust combination of fuzzy C-means clustering and back-propagation neural network. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112808. [PMID: 34034129 DOI: 10.1016/j.jenvman.2021.112808] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Heavy metal adsorption onto biochar is an effective method for the treatment of the heavy metal contamination of water and wastewater. This study aims to evaluate the heavy metals sorption efficiency of different biochar characteristics and propose a novel intelligence method for predicting the sorption efficiency of heavy metal onto biochar with high accuracy based on the back-propagation neural network (BPNN) and fuzzy C-means clustering algorithm (FCM), named as FCM-BPNN. Accordingly, the FCM algorithm was used to simulate the properties of metal adsorption data and divide them into clusters with similar features. The clustering results showed that the FCM algorithm simulated metal adsorption data's properties very well and classified them based on biochar characteristics and adsorption conditions. Afterward, BPNN models were well-developed based on these clusters, and their outcomes were then combined (i.e., FCM-BPNN). The results indicated that the FCM-BPNN model could predict heavy metal's sorption efficiency onto biochar with a promising result (i.e., RMSE of 0.036, R2 of 0.987, RSE of 0.006, MAPE of 0.706, and VAF of 98.724). Whereas the BPNN model, without optimizing the FCM algorithm, was proved with lower performance (RMSE = 0.050, R2 = 0.977, RSE = 0.011, MAPE = 0.802, and VAF = 97.662). These findings revealed that the FCM algorithm's presence impressively improved the BPNN model's accomplishment in predicting heavy metal's sorption efficiency onto biochar, and the proposed FCM-BPNN model can improve water/wastewater treatment plants' quality and provide a more efficient process for heavy metals with performance superiority.
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Affiliation(s)
- Bo Ke
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China; School of Urban Construction, Wuchang University of Technology, Wuhan, 430223, China
| | - Hoang Nguyen
- Department of Surface Mining, Mining Faculty, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, Viet Nam.
| | - Xuan-Nam Bui
- Department of Surface Mining, Mining Faculty, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, Viet Nam; Center for Mining, Electro-Mechanical Research, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, Viet Nam.
| | - Hoang-Bac Bui
- Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, 100000, Viet Nam; Center for Excellence in Analysis and Experiment, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, 100000, Viet Nam.
| | - Trung Nguyen-Thoi
- Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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Cao G, Sun J, Chen M, Sun H, Zhang G. Co-transport of ball-milled biochar and Cd 2+ in saturated porous media. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125725. [PMID: 33813292 DOI: 10.1016/j.jhazmat.2021.125725] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 02/23/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
The combination of ball milling technology and biochar materials provides new prospects for environmentally friendly and sustainable environmental pollution control technologies, but comes with opportunities and risks. In this study, column experiments were used to evaluate the environmental behavior of ball‑milled biochar (BMBC). The results of the column experiments showed that BMBC transport increased with a high flow velocity, large medium size, high pH, and low ionic strength. Owing to the strong adsorption of Cd2+ by BMBC, the presence of BMBC in the medium led to a decrease in effluent Cd2+. The presence of Cd2+ in the solution slightly inhibited the transport of BMBC. The transport of Cd2+ was facilitated by BMBC due to the high affinity. Therefore, attention should be paid to favorable conditions for BMBC transport. This study provides a perspective to assess the behavior of BMBC in the environment and whether its interaction with Cd2+ will introduce new environmental hazards.
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Affiliation(s)
- Gang Cao
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Jiaxue Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Menghua Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Huimin Sun
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, China.
| | - Guilong Zhang
- Agro-Environmental Protection Institute, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Tianjin 300191, China
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Ke B, Nguyen H, Bui XN, Bui HB, Choi Y, Zhou J, Moayedi H, Costache R, Nguyen-Trang T. Predicting the sorption efficiency of heavy metal based on the biochar characteristics, metal sources, and environmental conditions using various novel hybrid machine learning models. CHEMOSPHERE 2021; 276:130204. [PMID: 34088091 DOI: 10.1016/j.chemosphere.2021.130204] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/17/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Heavy metals in water and wastewater are taken into account as one of the most hazardous environmental issues that significantly impact human health. The use of biochar systems with different materials helped significantly remove heavy metals in the water, especially wastewater treatment systems. Nevertheless, heavy metal's sorption efficiency on the biochar systems is highly dependent on the biochar characteristics, metal sources, and environmental conditions. Therefore, this study implicates the feasibility of biochar systems in the heavy metal sorption in water/wastewater and the use of artificial intelligence (AI) models in investigating efficiency sorption of heavy metal on biochar. Accordingly, this work investigated and proposed 20 artificial intelligent models for forecasting the sorption efficiency of heavy metal onto biochar based on five machine learning algorithms and bagging technique (BA). Accordingly, support vector machine (SVM), random forest (RF), artificial neural network (ANN), M5Tree, and Gaussian process (GP) algorithms were used as the key algorithms for the aim of this study. Subsequently, the individual models were bagged with each other to generate new ensemble models. Finally, 20 intelligent models were developed and evaluated, including SVM, RF, M5Tree, GP, ANN, BA-SVM, BA-RF, BA-M5Tree, BA-GP, BA-ANN, SVM-RF, SVM-M5Tree, SVM-GP, SVM-ANN, RF-M5Tree, RF-GP, RF-ANN, M5Tree-GP, M5Tree-ANN, GP-ANN. Of those, the hybrid models (i.e., BA-SVM, BA-RF, BA-M5Tree, BA-GP, BA-ANN, SVM-RF, SVM-M5Tree, SVM-GP, SVM-ANN, RF-M5Tree, RF-GP, RF-ANN, M5Tree-GP, M5Tree-ANN, GP-ANN) are introduced as the novelty of this study for estimating the heavy metal's sorption efficiency on the biochar systems. Also, the biochar characteristics, metal sources, and environmental conditions were comprehensively assessed and used, and they are considered as a novelty of the study as well. For this aim, a dataset of sorption efficiency of heavy metal was collected and processed with 353 experimental tests. Various performance indexes were applied to evaluate the models, such as RMSE, R2, MAE, color intensity, Taylor diagram, box and whiskers plots. This study's findings revealed that AI models could predict heavy metal's sorption efficiency onto biochar with high reliability, and the efficiency of the ensemble models is higher than those of individual models. The results also reported that the SVM-ANN ensemble model is the most superior model among 20 developed models. The predictive model proposed that heavy metal's efficiency sorption on biochar can be accurately forecasted and early warning for the water pollution by heavy metal.
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Affiliation(s)
- Bo Ke
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, 430070, China; School of Urban Construction, Wuchang University of Technology, Wuhan, 430223, China
| | - Hoang Nguyen
- Department of Surface Mining, Mining Faculty, Hanoi University of Mining and Geology, 18 Pho Vien, Duc Thang Ward, Bac Tu Liem District, Hanoi, 100000, Viet Nam.
| | - Xuan-Nam Bui
- Department of Surface Mining, Mining Faculty, Hanoi University of Mining and Geology, 18 Pho Vien, Duc Thang Ward, Bac Tu Liem District, Hanoi, 100000, Viet Nam; Center for Mining, Electro-Mechanical Research, Hanoi University of Mining and Geology, 18 Pho Vien, Duc Thang Ward, Bac Tu Liem District, Hanoi, 100000, Viet Nam
| | - Hoang-Bac Bui
- Faculty of Geosciences and Geoengineering, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, 100000, Viet Nam; Center for Excellence in Analysis and Experiment, Hanoi University of Mining and Geology, 18 Vien St., Duc Thang Ward, Bac Tu Liem Dist., Hanoi, 100000, Viet Nam.
| | - Yosoon Choi
- Department of Energy Resources Engineering, Pukyong National University, Busan, 48513, South Korea
| | - Jian Zhou
- School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Hossein Moayedi
- Department of Energy Resources Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | - Romulus Costache
- Research Institute of the University of Bucharest, 90-92 Sos. Panduri, 5th District, Bucharest, Romania
| | - Thao Nguyen-Trang
- Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, 70000, Viet Nam; Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, 700000, Viet Nam.
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Zhang F, Wei Z, Wang JJ. Integrated application effects of biochar and plant residue on ammonia loss, heavy metal immobilization, and estrogen dissipation during the composting of poultry manure. WASTE MANAGEMENT (NEW YORK, N.Y.) 2021; 131:117-125. [PMID: 34120077 DOI: 10.1016/j.wasman.2021.05.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Inadequate handling of poultry manure can cause significant releases of NH3, heavy metals, and estrogen, thereby impairing environmental quality. This study was a composting experiment involving the combination of poultry manure with plant residues (corn stalks, mushroom residues, and vegetable straw), as well as with either wheat stalk biochar (WB) or rice husk biochar (RB). The integrated effects of plant residues and biochar on NH3 loss, heavy metal (Cu, Zn, As, and Cd) stabilization, and 17β-estradiol (E2) dissipation were investigated during composting. The poultry manure co-composted with corn straw and mushroom residue showed the highest potential for E2 degradation. Biochar enhanced E2 dissipation and decreased estrogenic activity in all treatments, with RB showing a stronger effect than WB. Both biochars decreased microbial diversity and increased bacterial groups related to E2 and organic matter degradation·NH3 emission was reduced by 50-82% with 15% WB and 86-97% with 15% RB. The extractable fraction of As was reduced by 0-53% with WB and 50-84% with RB, while that of Cd was reduced by 5-28% for WB and 25-41% for RB in poultry manure compost. However, biochar showed little effect on Cu and Zn. Biochar appears to have a promotional effect and enhances the microbial degradation of E2. Specifically, the integration of corn stalks, mushroom residues, and RB in poultry manure compost had a positive effect by preventing nitrogen loss while reducing the bioavailability of heavy metals and hormones.
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Affiliation(s)
- Fengsong Zhang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Zhongke-Ji'an Institute for Eco-Environmental Sciences, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Ji'an 343000, China.
| | - Zhuo Wei
- School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Jim J Wang
- School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
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Mahmoud MA. Separation of Cd (II) from aqueous solution by keratin magnetic froth carbon in the batch and continuous system. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhao Y, Li Y, Fan D, Song J, Yang F. Application of kernel extreme learning machine and Kriging model in prediction of heavy metals removal by biochar. BIORESOURCE TECHNOLOGY 2021; 329:124876. [PMID: 33640697 DOI: 10.1016/j.biortech.2021.124876] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Kernel extreme learning machine (KELM) and Kriging models are proposed to predict biochar adsorption efficiency of heavy metals. Both six popular ions (Pb2+, Cd2+, Zn2+, Cu2+, Ni2+, As3+) and single ion are considered to test the accuracy of KELM and Kriging models. Two ways (data selection and fix output value) are attempted to improve the model fitting accuracy and the best R2 can reach 0.919 (KELM) and 0.980 (Kriging). In addition, stepwise regression and local sensitivity analysis show that adsorption efficiency has strong relationship with pHsolute and T. Moreover, the most sensitive parameters are T, pHH2O, r, C and pHsolute. The accurate KELM and Kriging models identify the most important controlling factors on metal adsorption, and ultimately provide some sort of predictive framework that will be useful in selecting appropriate biochar for particular treatment scenarios. This, in turn, will reduce the number of metal-biochar adsorption experiments needed going forward.
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Affiliation(s)
- Ying Zhao
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Yuelei Li
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Da Fan
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Jingpeng Song
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China
| | - Fan Yang
- Joint Laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China.
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Gong H, Tan Z, Huang K, Zhou Y, Yu J, Huang Q. Mechanism of cadmium removal from soil by silicate composite biochar and its recycling. JOURNAL OF HAZARDOUS MATERIALS 2021; 409:125022. [PMID: 33421873 DOI: 10.1016/j.jhazmat.2020.125022] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 06/12/2023]
Abstract
Biochar added to the soil is generally difficult to separate. In order to solve the problem of separating biochar from soil, this paper applies a hydraulic silicate gel material to the preparation of biochar. Non-magnetic silicate bonded biochar (SBC) and magnetic silicate bonded biochar (MSBC) with hydraulic properties were prepared. The new silicate bonded biochar has good adsorption performance, separation and recovery characteristics. The findings are as follows: (1) after three times of soil remediation, the silicate bonded biochar still had good mechanical properties, and the compressive strength was not attenuated, remaining between 210 and 270 N. (2) After three times of SBC and MSBC remediation, total Cd in soil decreased by 29.33% and 31.82% respectively, and available Cd decreased by 60.82% and 62.74% respectively. (3) After three cycles, the recovery rates of SBC and MSBC both exceeded 94.88%, and the highest adsorption regeneration rates of SBC and MSBC reached 83.09% and 92.06%, respectively. (4) The Cd content of wheat after SBC and MSBC repair was reduced by 29.67-37.36% and 47.25-63.74%, respectively.
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Affiliation(s)
- Huabo Gong
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China
| | - Zhongxin Tan
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China.
| | - Kang Huang
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China
| | - Yuqian Zhou
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China
| | - Jiahui Yu
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China
| | - Qiaoyun Huang
- Hubei Key Laboratory of Soil Environment and Pollution Remediation, College of Resources and Environment, Huazhong Agricultural University, No. 1 Lion Hill Street, Hongshan District, Wuhan 430070, People's Republic of China
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Jin Y, Zhang M, Jin Z, Wang G, Li R, Zhang X, Liu X, Qu J, Wang H. Characterization of biochars derived from various spent mushroom substrates and evaluation of their adsorption performance of Cu(II) ions from aqueous solution. ENVIRONMENTAL RESEARCH 2021; 196:110323. [PMID: 33098819 DOI: 10.1016/j.envres.2020.110323] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 05/22/2023]
Abstract
A total of 16 biochar adsorbents were produced from four types of spent mushroom substrates to investigate the effect of pyrolysis temperature and raw material composition on the Cu(II) adsorption performance of the resulting biochars. It was determined that the pyrolysis temperature and substrate composition markedly influenced the thermal stability, the degree of carbonization, surface functional group content, and structural morphology of the biochars, but did not affect the adsorption isotherms or kinetics. Optimal results were obtained with an initial pH of 5, adsorbent dosage of 1 g/L, Cu(II) concentration of 50 mg/L, and temperature of 25 °C. The four best-performing biochars conformed to the Langmuir isotherm model and followed pseudo-second-order kinetics with maximum Cu(II) adsorption between 52.6 and 65.6 mg/g. Precipitation was the dominant mechanism for Cu(II) adsorption onto Lentinus edodes spent substrate-derived biochar pyrolyzed at 600 °C (LESS600), whereas complexation with surface functional groups was the prominent mechanism of Cu(II) removal by Auricularia auricula spent substrate-derived biochar pyrolyzed at 500 °C (AASS500). The Flammulina velutipes and Pleurotus ostreatus spent substrate-derived biochars pyrolyzed at 600 °C (FVSS600 and POSS600, respectively) removed Cu(II) ions using both precipitation and Cu2+-π complexation interactions. The findings indicate that biochar derived from spent mushroom substrates containing abundant lignin and pyrolyzed at high temperatures (500 or 600 °C) demonstrate effective Cu(II) removal because of the various physico-chemical properties discussed herein.
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Affiliation(s)
- Yu Jin
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Meng Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Zonghui Jin
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Guoliang Wang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Rui Li
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xu Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xuesheng Liu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Juanjuan Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin, 150030, China.
| | - Hongmei Wang
- College of Life Science, Shandong Normal University, Jinan, 250014, China
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Sangeetha Piriya R, Jayabalakrishnan RM, Maheswari M, Boomiraj K, Oumabady S. Coconut shell derived ZnCl 2 activated carbon for malachite green dye removal. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1167-1182. [PMID: 33724945 DOI: 10.2166/wst.2021.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The coconut-based agricultural wastes have gained wide attention as an alternative adsorbent for the removal of diverse pollutants from the industrial effluents. This paper presents the zinc chloride activation of adsorbent carbon and the utilization as an adsorbent for the removal of malachite green dye from aqueous solution. The characterisation of activated carbon was performed to get an insight into the adsorption mechanism. The ZnCl2 activated carbon acquired a higher specific surface area (544.66 m2 g-1) and stability (-32.6 mV). The impact of process parameters including contact time (20-220 min) and initial dye concentration (20-80 mg L-1) were evaluated on the effectiveness of activated carbon for dye removal. The results concluded that zinc chloride activated carbon showed a significant dye adsorption (39.683 mg g-1) at an initial concentration of 20 mg L-1 after 3 hours. Based on the correlation coefficient (R2), the Freundlich isotherm model (0.978-0.998) was best fitted for the experimental data followed by the intraparticle diffusion model (0.88-0.929) as the most appropriate model for malachite green dye removal. Additionally, the energy and thermogravimetric analysis portrayed the suitability of the carbon material to be used as an energy alternative to coal.
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Affiliation(s)
- R Sangeetha Piriya
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore 641 003, India E-mail:
| | | | - M Maheswari
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore 641 003, India E-mail:
| | - Kovilpillai Boomiraj
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore 641 003, India E-mail:
| | - Sadish Oumabady
- Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore 641 003, India E-mail:
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Yuan C, Gao B, Peng Y, Gao X, Fan B, Chen Q. A meta-analysis of heavy metal bioavailability response to biochar aging: Importance of soil and biochar properties. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:144058. [PMID: 33288251 DOI: 10.1016/j.scitotenv.2020.144058] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 11/03/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Biochar has been widely applied to remediate the heavy metal-polluted soils, whereas biochar aging can induce the changes of the biochar physic-chemical properties. Afterwards, the bioavailability of heavy metals (BHM) will vary in soils which likely increase the unstable fractions of heavy metals and the following environmental risks. To explore the biochar aging effects on the BHM changes in responses to the variation of experimental conditions and biochar properties, a meta-analysis for the literatures published before May 2020 was conducted. A sum of 257 independent observations from 22 published papers was obtained. The results from the analysis of boosted regression tree showed that the soil pH was the most important factor influencing the BHM changes in biochar amended soil, followed by soil texture, aging time and biochar pyrolysis temperature. The results of this review showed that the BHM was decreased by 16.9%, 28.7% and 6.4% in weakly acid soil (pH 6.00-6.99), coarse- and medium-textured soils, respectively, but increased by 149% and 121% in the alkaline (pH > 8.00) and fine-textured soils. The BHM declined in the soils amended with biochar pyrolyzed at relative high temperature (> 500 °C), and increased during aging in soils amended with biochar pyrolyzed at relatively low temperature (401-500 °C). In terms of diverse immobilized heavy metals, only bioavailable Zn in soil decreased after aging. However, there was no significant changes in Cd, Cu and Pb's bioavalability. Besides, the BHM was decreased by 18.6% within the short-term (less than one year) biochar aging, while showed inverse trend during the longer aging processes. Besides, the application of lignin-enriched biochar may counteract the positive effects of the biochar aging on BHM. Our works may promote the interpretation of the interference factors on the BHM changes and filled the research gaps on biochar aging process in soils.
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Affiliation(s)
- Chengpeng Yuan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Baolin Gao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Yutao Peng
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xing Gao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Beibei Fan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Qing Chen
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
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