Optimized feeding schemes of heterotrophic anodic denitrification coupled with cathodic phosphate recovery from wastewater using a microbial fuel cell

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment Pub Date : 2025-05-05 DOI:10.1016/j.scitotenv.2025.179590

Yuanyao Ye , Xueyi Yan , Yuanshou Jiang , Songlin Wang , Dongqi Liu , Yongzheng Ren , Daosheng Li , Huu Hao Ngo , Wenshan Guo , Dongle Cheng , Wei Jiang

{"title":"Optimized feeding schemes of heterotrophic anodic denitrification coupled with cathodic phosphate recovery from wastewater using a microbial fuel cell","authors":"Yuanyao Ye , Xueyi Yan , Yuanshou Jiang , Songlin Wang , Dongqi Liu , Yongzheng Ren , Daosheng Li , Huu Hao Ngo , Wenshan Guo , Dongle Cheng , Wei Jiang","doi":"10.1016/j.scitotenv.2025.179590","DOIUrl":null,"url":null,"abstract":"<div><div>Enhanced water quality standards and increasing resource scarcity have prompted extensive research into low-cost nitrogen removal and phosphate recovery from wastewater. Microbial fuel cells (MFCs) offer a viable solution by simultaneously removing nitrogen, recovering phosphorus, and generating electrical energy. This study employed MFCs to achieve simultaneous nitrogen removal and phosphorus recovery, investigating the impact of different feeding schemes. The experimental results indicated that replacing the entire anode chamber solution and recycling the anode effluent to the cathode chamber effectively prevented the accumulation of nitrifying bacteria while achieving the highest pollutant removal performance. Under closed circuit conditions, the system consistently maintained low nitrite concentrations, achieving an average nitrate removal efficiency of 68.09 ± 1.86 % and phosphate recovery efficiency of 83.46 ± 5.30 %. Furthermore, this feeding scheme facilitated microbial growth and reproduction while also improving operational convenience. The study utilized metagenomics and other technologies to comprehensively analyze the system's operation mechanism and reasons for its excellent performance.</div></div>","PeriodicalId":422,"journal":{"name":"Science of the Total Environment","volume":"981 ","pages":"Article 179590"},"PeriodicalIF":8.2000,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science of the Total Environment","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0048969725012318","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Enhanced water quality standards and increasing resource scarcity have prompted extensive research into low-cost nitrogen removal and phosphate recovery from wastewater. Microbial fuel cells (MFCs) offer a viable solution by simultaneously removing nitrogen, recovering phosphorus, and generating electrical energy. This study employed MFCs to achieve simultaneous nitrogen removal and phosphorus recovery, investigating the impact of different feeding schemes. The experimental results indicated that replacing the entire anode chamber solution and recycling the anode effluent to the cathode chamber effectively prevented the accumulation of nitrifying bacteria while achieving the highest pollutant removal performance. Under closed circuit conditions, the system consistently maintained low nitrite concentrations, achieving an average nitrate removal efficiency of 68.09 ± 1.86 % and phosphate recovery efficiency of 83.46 ± 5.30 %. Furthermore, this feeding scheme facilitated microbial growth and reproduction while also improving operational convenience. The study utilized metagenomics and other technologies to comprehensively analyze the system's operation mechanism and reasons for its excellent performance.

Abstract Image

查看原文本刊更多论文

微生物燃料电池异养阳极反硝化与废水阴极磷酸盐回收的优化投料方案

水质标准的提高和资源的日益稀缺促使人们广泛研究低成本的废水脱氮和磷酸盐回收。微生物燃料电池（mfc）提供了一个可行的解决方案，它可以同时去除氮、回收磷和产生电能。本研究采用MFCs同时去除氮和磷，研究不同投料方案的影响。实验结果表明，更换整个阳极室溶液并将阳极出水回用到阴极室，有效地防止了硝化细菌的积累，同时达到了最高的污染物去除性能。在闭环条件下，系统始终保持较低的亚硝酸盐浓度，平均硝酸盐去除率为68.09±1.86%，磷酸盐回收率为83.46±5.30%。此外，这种喂养方案促进了微生物的生长和繁殖，同时也提高了操作的便利性。本研究利用宏基因组学等技术，全面分析了该系统的运行机制及其优异性能的原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.