Conductive Materials Enhance Performance of Anaerobic Membrane Bioreactor in Treating Liquid Waste from Animal Farming: a Review

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Current Pollution Reports Pub Date : 2025-06-04 DOI:10.1007/s40726-025-00371-9

Weiting Guan, Yongzhen Peng, Xueqi Chen, Xiaoye Song

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引用次数: 0

Abstract

Purpose of Review

Anaerobic membrane bioreactor (AnMBR) holds considerable promise for the recovery and reutilization of resources from animal farming liquid waste (AFLW). However, typical pollutants in AFLW can markedly impair AnMBR performance. This review aims to describe the mechanisms through which conductive materials enhance AnMBR performance to maximize resource recovery and minimize environmental impact.

Recent Findings

AFLW exhibits high resource utilization potential. However, pollutants in AFLW, such as antibiotics, resistance genes, and heavy metals (HMs), can disrupt microbial communities in AnMBR, reducing treatment efficiency and increasing environmental risks. Conductive materials, such as iron-based materials (e.g., zero-valent iron, magnetite) and carbon-based materials (e.g., biochar, granular activated carbon), enhance microbial activity through mediated interspecies electron transfer and direct interspecific electron transfer, improving pollutant removal and resource recovery. Additionally, conductive materials reduce the bio-toxicity of HMs through adsorption, further mitigating environmental pollution.

Summary

This review highlights the enhancement of resource recovery and reduction of environmental risks in AnMBR for treating AFLW through the incorporation of conductive materials. The incorporation of conductive materials has been shown to significantly improve AnMBR performance, including enhanced methane production, reduced start-up time, and improved degradation efficiency of organic matter. The main mechanisms of conductive materials are further discussed to provide the further development of AnMBR in AFLW treatment.

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导电材料提高厌氧膜生物反应器处理动物养殖废液性能的研究进展

好氧膜生物反应器（AnMBR）在畜牧业废液资源的回收和再利用方面具有广阔的前景。然而，AFLW中的典型污染物会显著影响AnMBR的性能。本文旨在阐述导电材料提高AnMBR性能的机制，以最大限度地提高资源回收率和减少对环境的影响。最近的发现saflw具有很高的资源利用潜力。然而，AFLW中的污染物，如抗生素、耐药基因和重金属（HMs），会破坏AnMBR中的微生物群落，降低处理效率，增加环境风险。导电材料，如铁基材料（如零价铁、磁铁矿）和碳基材料（如生物炭、颗粒活性炭），通过介导的种间电子转移和直接的种间电子转移增强微生物活性，提高污染物的去除和资源的回收。此外，导电材料通过吸附降低HMs的生物毒性，进一步减轻环境污染。摘要本文重点介绍了在AnMBR中加入导电材料处理AFLW，提高了资源回收率，降低了环境风险。导电性材料的掺入可以显著提高AnMBR的性能，包括提高甲烷产量、缩短启动时间和提高有机物降解效率。进一步讨论了导电材料的主要作用机理，为AnMBR在AFLW处理中的进一步发展提供了依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Current Pollution Reports Environmental Science-Water Science and Technology

CiteScore

12.10

自引率

1.40%

发文量

期刊介绍： Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.