The utility of electrode-assisted ammonia oxidation under strict anaerobic conditions

Z. Kimura, Erika Hirata
{"title":"The utility of electrode-assisted ammonia oxidation under strict anaerobic conditions","authors":"Z. Kimura, Erika Hirata","doi":"10.2166/wpt.2024.121","DOIUrl":null,"url":null,"abstract":"\n \n In this study, we investigated the feasibility of electrode-assisted ammonia oxidation and subsequent nitrite accumulation within an anaerobic microbial fuel cell (MFC). Our study focused on determining whether these processes could be effectively maintained in a strictly anaerobic environment, which would be critical for advancing nitrogen removal technologies in wastewater treatment. Although we demonstrated electrode-assisted ammonia oxidation and nitrite accumulation, the expected dominance of these reactions within the system was not achieved. In contrast, ammonia assimilation appeared to be the prevailing nitrogen removal pathway under our experimental conditions. The study did not identify the specific microbial communities responsible for these processes, however, illustrates an important area for future research. Our findings enhance the current understanding of nitrogen cycling in anaerobic MFCs and demonstrate the need for improved strategies to enrich nitrifying bacteria and optimize electrode-assisted nitrogen removal processes in wastewater treatment.","PeriodicalId":104096,"journal":{"name":"Water Practice & Technology","volume":"10 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Water Practice & Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2166/wpt.2024.121","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

In this study, we investigated the feasibility of electrode-assisted ammonia oxidation and subsequent nitrite accumulation within an anaerobic microbial fuel cell (MFC). Our study focused on determining whether these processes could be effectively maintained in a strictly anaerobic environment, which would be critical for advancing nitrogen removal technologies in wastewater treatment. Although we demonstrated electrode-assisted ammonia oxidation and nitrite accumulation, the expected dominance of these reactions within the system was not achieved. In contrast, ammonia assimilation appeared to be the prevailing nitrogen removal pathway under our experimental conditions. The study did not identify the specific microbial communities responsible for these processes, however, illustrates an important area for future research. Our findings enhance the current understanding of nitrogen cycling in anaerobic MFCs and demonstrate the need for improved strategies to enrich nitrifying bacteria and optimize electrode-assisted nitrogen removal processes in wastewater treatment.
严格厌氧条件下电辅助氨氧化的实用性
在这项研究中,我们调查了在厌氧微生物燃料电池(MFC)中进行电辅助氨氧化和随后的亚硝酸盐积累的可行性。我们的研究重点是确定这些过程能否在严格的厌氧环境中有效维持,这对于推进废水处理中的脱氮技术至关重要。虽然我们展示了电辅助氨氧化和亚硝酸盐积累,但这些反应在系统中并没有达到预期的主导地位。相反,在我们的实验条件下,氨同化似乎是最主要的脱氮途径。不过,这项研究并没有确定负责这些过程的特定微生物群落,这说明这是未来研究的一个重要领域。我们的研究结果加深了目前对厌氧 MFC 中氮循环的理解,并表明需要改进策略来富集硝化细菌和优化废水处理中的电极辅助脱氮过程。
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
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信