Resource-Oriented Wastewater Treatment through Quorum Quenching─Integration of AnMBR and Donnan Dialysis

IF 12.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

环境科学与技术 Pub Date : 2026-10-20 DOI:10.1021/acs.est.6c05848

Hongyu Zhang,Yuxuan Wan,Liqiu Zhang,Huarong Yu,Haiyang Yang,Fangshu Qu

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Abstract

Aligned with United Nations Sustainable Development Goal 6, water treatment is shifting from pollution removal to resource recovery and circularity. An integration of AnMBR and a Donnan dialysis (DD) (AnMBR-DD) was proposed to simultaneously recover methane and ammonium, and quorum quenching (QQ) was further incorporated to mitigate membrane fouling and enhance process efficiency. The COD removal efficiency was stably maintained above 80%, and the methane conversion efficiency reached 51.6%. The effluent NH4+-N concentration was controlled at 3–5 mg/L, with a recovery efficiency of 47.1% in the AnMBR-DD. The QQ effectively alleviated biofouling on the ultrafiltration membrane in the AnMBR and ion exchange membrane in the DD, while improving methane production and ammonia recovery by 20.6% and 6.6%, respectively. These improvements were mainly attributed to QQ-induced reductions in extracellular polymeric substances (EPS), which weakened microbial adhesion and decreased biofilm compactness. Life cycle assessment showed that coupled methane and ammonium recovery in AnMBR-DD-QQ were the decided advantages in alleviating the environmental impact. These results highlight the great potential of AnMBR-DD-QQ as a resource-oriented wastewater treatment strategy.

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群体淬灭资源型废水处理─AnMBR与Donnan透析的集成

与联合国可持续发展目标6一致，水处理正在从消除污染转向资源回收和循环。提出了AnMBR与Donnan透析（DD）（AnMBR-DD）相结合，同时回收甲烷和氨，并进一步加入quorum淬火（QQ）以减轻膜污染，提高工艺效率。COD去除率稳定保持在80%以上，甲烷转化率达到51.6%。出水NH4+-N浓度控制在3 ~ 5 mg/L， AnMBR-DD的回收率为47.1%。QQ有效缓解了AnMBR超滤膜和DD离子交换膜上的生物污染，甲烷产量和氨回收率分别提高了20.6%和6.6%。这些改善主要归因于qq诱导的细胞外聚合物质（EPS）的减少，这削弱了微生物的粘附性，降低了生物膜的致密性。生命周期评价表明，氨铵耦合回收在减轻环境影响方面具有决定性优势。这些结果突出了AnMBR-DD-QQ作为资源型废水处理策略的巨大潜力。

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

环境科学与技术环境科学-工程：环境

CiteScore

17.50

自引率

9.60%

发文量

12359

审稿时长

2.8 months

期刊介绍： Environmental Science & Technology (ES&T) is a co-sponsored academic and technical magazine by the Hubei Provincial Environmental Protection Bureau and the Hubei Provincial Academy of Environmental Sciences. Environmental Science & Technology (ES&T) holds the status of Chinese core journals, scientific papers source journals of China, Chinese Science Citation Database source journals, and Chinese Academic Journal Comprehensive Evaluation Database source journals. This publication focuses on the academic field of environmental protection, featuring articles related to environmental protection and technical advancements.