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Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil.
Bull Environ Contam Toxicol. 2020 Oct; 105(4):639-644.BE

Abstract

Arsenic (As) and cadmium (Cd) are common soil pollutants whose opposing geochemical behaviors must be taken into account in the development of cost-effective, environmentally friendly remediation strategies. In this study, a pot experiment with lettuce and a field experiment with wheat were performed to examine the impacts of zeolite, biochar, MnO2, zero-valent iron (ZVI) individually and in binary combinations thereof on As-Cd pollution. The results of the pot experiment showed that biochar, MnO2 and ZVI had good passivation effects on As and Cd when provided individually, but the effects of a combination of 0.2% ZVI/0.5% biochar or 0.2% MnO2/0.5% ZVI were even better. These amendments were further investigated in a field experiment, which confirmed the positive effect of 0.2% MnO2/0.5% ZVI. Therefore, ZVI/biochar and MnO2/ZVI mixtures may offer effective solutions to the remediation of farmland soil contaminated with both As and Cd.

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Publisher Full Text (DOI)

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.

Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, 210042, China.

Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing, 210042, China.

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China. xygu@nju.edu.cn.

MeSH

ArsenicCadmiumCharcoalEnvironmental PollutionEnvironmental Restoration and RemediationFarmsIronLettuceManganese CompoundsOxidesSoilSoil PollutantsTriticum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32955595

Citation

Li, Ying, et al. "Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil." Bulletin of Environmental Contamination and Toxicology, vol. 105, no. 4, 2020, pp. 639-644.

Li Y, Wen J, Shen P, et al. Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil. Bull Environ Contam Toxicol. 2020;105(4):639-644.

Li, Y., Wen, J., Shen, P., Zhou, Y., Shen, J., Jiang, J., Kong, X., & Gu, X. (2020). Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil. Bulletin of Environmental Contamination and Toxicology, 105(4), 639-644. https://doi.org/10.1007/s00128-020-02995-7

Li Y, et al. Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil. Bull Environ Contam Toxicol. 2020;105(4):639-644. PubMed PMID: 32955595.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Comparison of Four Amendments for Arsenic and Cadmium Combined Contaminated Soil. AU - Li,Ying, AU - Wen,Jiaqi, AU - Shen,Pengfei, AU - Zhou,Yu, AU - Shen,Jianxiang, AU - Jiang,Jinlin, AU - Kong,Xiangji, AU - Gu,Xueyuan, Y1 - 2020/09/21/ PY - 2020/06/09/received PY - 2020/09/14/accepted PY - 2020/9/22/pubmed PY - 2020/10/21/medline PY - 2020/9/21/entrez KW - As–Cd KW - Combined pollution KW - Immobilization KW - Soil remediation KW - Stabilization SP - 639 EP - 644 JF - Bulletin of environmental contamination and toxicology JO - Bull Environ Contam Toxicol VL - 105 IS - 4 N2 - Arsenic (As) and cadmium (Cd) are common soil pollutants whose opposing geochemical behaviors must be taken into account in the development of cost-effective, environmentally friendly remediation strategies. In this study, a pot experiment with lettuce and a field experiment with wheat were performed to examine the impacts of zeolite, biochar, MnO2, zero-valent iron (ZVI) individually and in binary combinations thereof on As-Cd pollution. The results of the pot experiment showed that biochar, MnO2 and ZVI had good passivation effects on As and Cd when provided individually, but the effects of a combination of 0.2% ZVI/0.5% biochar or 0.2% MnO2/0.5% ZVI were even better. These amendments were further investigated in a field experiment, which confirmed the positive effect of 0.2% MnO2/0.5% ZVI. Therefore, ZVI/biochar and MnO2/ZVI mixtures may offer effective solutions to the remediation of farmland soil contaminated with both As and Cd. SN - 1432-0800 UR - https://www.unboundmedicine.com/medline/citation/32955595/Comparison_of_Four_Amendments_for_Arsenic_and_Cadmium_Combined_Contaminated_Soil_ DB - PRIME DP - Unbound Medicine ER -