Microbial activity and biodiversity responding to contamination of metal(loid) in heterogeneous nonferrous mining and smelting areas

Liu, Jianli; Yao, Jun; Lu, Chao; Li, Hao; Li, Zifu; Duran, Robert; Sunahara, Geoffrey I.; Mihucz, Victor G.

doi:10.1016/j.chemosphere.2019.03.051

Cited by 36 publications

(1 citation statement)

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“…According to the Ministry of Natural Resources of China, there were 53,598 mines by the end of 2020 ( Ministry of Natural Resources, PRC, 2020b ), while abandoned open-pit mines in key watersheds and regions, such as the Yellow River Basin and the Fenwei Plain, have significantly contributed to heavy metal pollution ( Ministry of Natural Resources, PRC, 2020a ). Metal (loid) exploitation and mining activities have led to increased toxicity of ecosystems and threaten human health when their residuals were released into the water, soil, air, or food chain ( Liu et al, 2019 ). Over the last three decades, various in-situ and ex-situ soil remediation techniques have been developed to remediate heavy metal-contaminated soils, which can be grouped into soil washing, soil replacement, electrokinetic remediation, chemical fixation, chemical leaching, phytoremediation, and bioremediation ( Liu et al, 2017 ; Ali et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Advance in remediated of heavy metals by soil microbial fuel cells: Mechanism and application

Sun

Wang²,

Long³

et al. 2022

Front. Microbiol.

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In the past decade, studies on the remediation of heavy metals contaminated soil by microbial fuel cells (MFCs) have attracted broad attention because of the self-generated power and their multifield principles such as the extracellular electron transfer (EET) reduction, electromigration for heavy metals removal. However, given the bio electro-motive power from soil MFCs is weak and fluctuated during the remediation, we need to comprehensively understand the origination of driving force in MFC based on the analysis of the fundamental rationale of ion moving in cells and improve the performance via the appropriate configurations and operations. In this review, we first described the structures of soil MFCs for heavy metals remediation and compared the advantages of different types of configurations. Then, based on the theoretical models of heavy metal migration, enrichment, and reduction in soil MFCs, the optimization of soil MFCs including the length of the remediation area, soil conductivity, control of electrode reaction, and modification of electrodes were proposed. Accordingly, this review contributes to the application of bioelectrochemistry to efficiently remove heavy metals from soils.

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Section: Introductionmentioning

confidence: 99%