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Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge.
Chemosphere. 2019 Mar; 219:351-357.C

Abstract

Heavy metals often coexist in contaminated wastewater systems and their competitive behavior could affect the adsorption capacity of biochar. Till now, the competitive adsorption of heavy metals by biochar derived from anaerobically digested sludge has never been reported. In this work, biochar from anaerobically digested sludge was synthesized and characterized to explore the competitive behavior of widely co-existed Pb(II) and Cd(II). The mutual effects and inner mechanisms of their adsorption on studied biochar were systematically investigated via single-metal and binary-metals systems. In single-metal system, the biochar exhibited much higher adsorption capacity for Pb(II) compared to that for Cd(II). The maximum adsorption capacities of Pb(II) and Cd(II) based on single-component adsorption isotherm were 0.75 and 0.55 mmoL/g, respectively, which were much higher than those reported biochars from different materials. In binary-metals system, the Cd(II) adsorption on biochar was severely inhibited, while the uptake of Pb(II) was not affected significantly. The results of binary-components adsorption isotherm clearly demonstrated the competitive adsorption between two metals occurred as well as the preference of biochar for Pb(II) compared to Cd(II). FTIR and metal characteristics analysis results revealed that Pb(II) had exactly the same adsorption sites with Cd(II), but Pb(II) has a greater affinity than Cd(II), thereby exhibiting a competitive advantage in the coexisting system.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Ni BJ
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China.
Huang QS
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
Wang C
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
Ni TY
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China.
Sun J
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, PR China. Electronic address: jingsun@tongji.edu.cn.
Wei W
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, PR China. Electronic address: hitvivi@126.com.

MeSH

AdsorptionBinding, CompetitiveCadmiumCharcoalLeadMetals, HeavySewageWastewaterWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30551101

Citation

Ni, Bing-Jie, et al. "Competitive Adsorption of Heavy Metals in Aqueous Solution Onto Biochar Derived From Anaerobically Digested Sludge." Chemosphere, vol. 219, 2019, pp. 351-357.
Ni BJ, Huang QS, Wang C, et al. Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge. Chemosphere. 2019;219:351-357.
Ni, B. J., Huang, Q. S., Wang, C., Ni, T. Y., Sun, J., & Wei, W. (2019). Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge. Chemosphere, 219, 351-357. https://doi.org/10.1016/j.chemosphere.2018.12.053
Ni BJ, et al. Competitive Adsorption of Heavy Metals in Aqueous Solution Onto Biochar Derived From Anaerobically Digested Sludge. Chemosphere. 2019;219:351-357. PubMed PMID: 30551101.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Competitive adsorption of heavy metals in aqueous solution onto biochar derived from anaerobically digested sludge. AU - Ni,Bing-Jie, AU - Huang,Qi-Su, AU - Wang,Chen, AU - Ni,Tian-Yi, AU - Sun,Jing, AU - Wei,Wei, Y1 - 2018/12/07/ PY - 2018/11/11/received PY - 2018/12/02/revised PY - 2018/12/06/accepted PY - 2018/12/15/pubmed PY - 2019/2/23/medline PY - 2018/12/15/entrez KW - Adsorption isotherm KW - Anaerobically digested sludge KW - Biochar KW - Competitive adsorption KW - Mechanism SP - 351 EP - 357 JF - Chemosphere JO - Chemosphere VL - 219 N2 - Heavy metals often coexist in contaminated wastewater systems and their competitive behavior could affect the adsorption capacity of biochar. Till now, the competitive adsorption of heavy metals by biochar derived from anaerobically digested sludge has never been reported. In this work, biochar from anaerobically digested sludge was synthesized and characterized to explore the competitive behavior of widely co-existed Pb(II) and Cd(II). The mutual effects and inner mechanisms of their adsorption on studied biochar were systematically investigated via single-metal and binary-metals systems. In single-metal system, the biochar exhibited much higher adsorption capacity for Pb(II) compared to that for Cd(II). The maximum adsorption capacities of Pb(II) and Cd(II) based on single-component adsorption isotherm were 0.75 and 0.55 mmoL/g, respectively, which were much higher than those reported biochars from different materials. In binary-metals system, the Cd(II) adsorption on biochar was severely inhibited, while the uptake of Pb(II) was not affected significantly. The results of binary-components adsorption isotherm clearly demonstrated the competitive adsorption between two metals occurred as well as the preference of biochar for Pb(II) compared to Cd(II). FTIR and metal characteristics analysis results revealed that Pb(II) had exactly the same adsorption sites with Cd(II), but Pb(II) has a greater affinity than Cd(II), thereby exhibiting a competitive advantage in the coexisting system. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30551101/Competitive_adsorption_of_heavy_metals_in_aqueous_solution_onto_biochar_derived_from_anaerobically_digested_sludge_ DB - PRIME DP - Unbound Medicine ER -