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Articles | Volume 11, issue 1
Articles | Volume 11, issue 1
https://doi.org/10.5194/soil-11-323-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-11-323-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 1
Original research article
 | 
28 Apr 2025
Original research article |  | 28 Apr 2025

Cr(VI) reduction, electricity production, and microbial resistance variation in paddy soil under microbial fuel cell operation

Huan Niu, Can Wang, Xia Luo, Peihan Li, Hang Qiu, Liyue Jiang, Subati Maimaitiaili, Minghui Wu, Fei Xu, and Heng Xu

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Short summary
We use the soil microbial fuel cell (SMFC) to eliminate Cr(VI) from paddy soil and for metal tolerance analysis, finding 93.76 % of Cr(VI) elimination, 0.97 V power output, and heavy-metal resistance gene elevation. The enrichment of exoelectrogens, Cr(VI) reducers, and tolerators contributed to SMFC performance. Bio-physical adsorption and electrochemical–microbial reduction simultaneously reduced Cr(VI).
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