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用于高效降解含氧氟沙星废水及微生物群落动态分析的连续流微生物燃料电池

CW-MFC for efficient degradation of ofloxacin-containing wastewater and dynamic analysis of microbial communities.

作者信息

Li Yanhong, Zhao Zikang, Zhao Yao, Tang Shen, Zhang Lihao, Zhang Jie, Peng Yuqing

机构信息

College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi 541006, China.

Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin, Guangxi 541006, China.

出版信息

iScience. 2025 Apr 23;28(5):112516. doi: 10.1016/j.isci.2025.112516. eCollection 2025 May 16.

DOI:10.1016/j.isci.2025.112516
PMID:40469116
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12136842/
Abstract

The overuse of antibiotics poses critical threats to environmental and human health. This study developed a constructed wetland-microbial fuel cell (CW-MFC) system integrated with pre-acclimated MR-1 to enhance ofloxacin (OFL) removal from wastewater. The CW-MFC demonstrated exceptional removal efficiency (> 96%) for OFL across tested concentration gradients, significantly outperforming conventional CWs in both antibiotic elimination and conventional pollutant reduction. Microbial community analysis revealed that MR-1 inoculation enhanced microbial diversity under OFL stress while promoting enrichment of electroactive Firmicutes phylum members compared to non-inoculated systems. The synergistic integration of bioelectrochemical processes and microbial consortia modification in CW-MFCs effectively addressed antibiotic contamination challenges. These findings establish CW-MFC technology combined with electroactive bacteria acclimation as a sustainable solution for pharmaceutical wastewater treatment, providing critical insights for optimizing antibiotic removal strategies in engineered ecosystems.

摘要

抗生素的过度使用对环境和人类健康构成了重大威胁。本研究开发了一种与预驯化的MR-1集成的人工湿地-微生物燃料电池（CW-MFC）系统，以提高废水中氧氟沙星（OFL）的去除率。CW-MFC在测试的浓度梯度范围内对OFL表现出卓越的去除效率（>96%），在抗生素消除和常规污染物减少方面均显著优于传统人工湿地。微生物群落分析表明，与未接种系统相比，接种MR-1可增强OFL胁迫下的微生物多样性，同时促进电活性厚壁菌门成员的富集。CW-MFC中生物电化学过程与微生物群落修饰的协同整合有效应对了抗生素污染挑战。这些发现确立了结合电活性细菌驯化的CW-MFC技术作为制药废水处理的可持续解决方案，为优化工程生态系统中的抗生素去除策略提供了关键见解。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e0a0/12136842/bd35c1231bb4/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e0a0/12136842/33126a6ea121/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e0a0/12136842/9067cf29b00e/gr8.jpg
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本文引用的文献

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