Comparative study on the metabolic behaviour of anode biofilm in microbial fuel cell under different external resistance

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-12-31 DOI:10.1080/13102818.2022.2055491

Yana Mersinkova, Hyusein Yemendzhiev, V. Nenov

引用次数: 1

Abstract

Abstract In this study the influence of the external circuit resistance on the metabolic behaviour of anodic biofilm in Microbial fuel cell (MFC) was studied. The results obtained demonstrated that extremely low and extremely high circuit loads could deteriorate the bio-electrochemistry of anodic respiration by shifting the microbial metabolism towards typical fermentation of the substrates. The best conditions for respiration and efficient substrate mineralisation of nearly 70% were found in the MFC reactor with 0.1 kΩ resistance in the anode and cathode connecting circuit. Two species of electrochemically active bacteria were isolated from the anodic community and were taxonomically affiliated to Pseudomonas and Bacillus genera based on 16 s rRNA genes amplification and sequencing.

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不同外阻条件下微生物燃料电池阳极生物膜代谢行为的比较研究

摘要本文研究了外路电阻对微生物燃料电池(MFC)阳极生物膜代谢行为的影响。结果表明，极低和极高的电路负荷会通过将微生物代谢转向底物的典型发酵而使阳极呼吸的生物电化学恶化。阳极和阴极连接电路电阻为0.1 kΩ时，MFC反应器的呼吸作用条件最佳，底物矿化效率接近70%。从阳极菌群中分离到两种具有电化学活性的细菌，经16s rRNA基因扩增和测序，分别归属于假单胞菌和芽孢杆菌属。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.