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Simultaneous copper migration and removal from soil and water using a three-chamber microbial fuel cell.
Environ Technol. 2020 Jun 01 [Online ahead of print]ET

Abstract

In this study, we constructed a three-chamber microbial fuel cell (TC-MFC) that avoided the adverse effects of H+ diffusion on anode microorganisms in the acidic catholyte and the precipitation of heavy metals in the soil near the cathode side (S4), while also achieving migration of copper from the soil and reduction of Cu2+ in the catholyte. The removal efficiency of acid-soluble Cu from the soil near the anode region reached 42.5% after 63 days of operation at an external resistance of 100 Ω and electrode spacing of 10 cm, and Cu2+ in the catholyte was completely removed within 21 days. Heavy metal mobility index (MF) values indicated that the bioavailability and mobility of heavy metals were reduced by the TC-MFC. We found that changing the cathode potential and external circuit current in TC-MFC would affect the type (via XRD) and morphology (via SEM) of cathode deposits and the average removal rate of heavy metals. At the meantime, it should be noted that the interaction between the electric-field-dependent soil heavy metal migration and electron-dependent copper reduction in TC-MFC occurred, which was confirmed to have a relationship with the negative correlation between voltage and current during the test.

Authors+Show Affiliations

School of Energy and Environment, Southeast University, Nanjing, People's Republic of China.School of Energy and Environment, Southeast University, Nanjing, People's Republic of China. School of Municipal Engineering, Xi'an University of Technology, Xi'an, People's Republic of China.School of Energy and Environment, Southeast University, Nanjing, People's Republic of China.School of Energy and Environment, Southeast University, Nanjing, People's Republic of China. Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan.School of Energy and Environment, Southeast University, Nanjing, People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32404026

Citation

Zhang, Jingran, et al. "Simultaneous Copper Migration and Removal From Soil and Water Using a Three-chamber Microbial Fuel Cell." Environmental Technology, 2020, pp. 1-9.
Zhang J, Wang H, Zhou X, et al. Simultaneous copper migration and removal from soil and water using a three-chamber microbial fuel cell. Environ Technol. 2020.
Zhang, J., Wang, H., Zhou, X., Cao, X., & Li, X. (2020). Simultaneous copper migration and removal from soil and water using a three-chamber microbial fuel cell. Environmental Technology, 1-9. https://doi.org/10.1080/09593330.2020.1769743
Zhang J, et al. Simultaneous Copper Migration and Removal From Soil and Water Using a Three-chamber Microbial Fuel Cell. Environ Technol. 2020 Jun 1;1-9. PubMed PMID: 32404026.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous copper migration and removal from soil and water using a three-chamber microbial fuel cell. AU - Zhang,Jingran, AU - Wang,Hui, AU - Zhou,Xuan, AU - Cao,Xian, AU - Li,Xianning, Y1 - 2020/06/01/ PY - 2020/5/15/pubmed PY - 2020/5/15/medline PY - 2020/5/15/entrez KW - Microbial fuel cell (MFC) KW - migration KW - reduction KW - soil remediation KW - toxic metal SP - 1 EP - 9 JF - Environmental technology JO - Environ Technol N2 - In this study, we constructed a three-chamber microbial fuel cell (TC-MFC) that avoided the adverse effects of H+ diffusion on anode microorganisms in the acidic catholyte and the precipitation of heavy metals in the soil near the cathode side (S4), while also achieving migration of copper from the soil and reduction of Cu2+ in the catholyte. The removal efficiency of acid-soluble Cu from the soil near the anode region reached 42.5% after 63 days of operation at an external resistance of 100 Ω and electrode spacing of 10 cm, and Cu2+ in the catholyte was completely removed within 21 days. Heavy metal mobility index (MF) values indicated that the bioavailability and mobility of heavy metals were reduced by the TC-MFC. We found that changing the cathode potential and external circuit current in TC-MFC would affect the type (via XRD) and morphology (via SEM) of cathode deposits and the average removal rate of heavy metals. At the meantime, it should be noted that the interaction between the electric-field-dependent soil heavy metal migration and electron-dependent copper reduction in TC-MFC occurred, which was confirmed to have a relationship with the negative correlation between voltage and current during the test. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/32404026/Simultaneous_copper_migration_and_removal_from_soil_and_water_using_a_three_chamber_microbial_fuel_cell_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330.2020.1769743 DB - PRIME DP - Unbound Medicine ER -
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