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

IF 1.5 4区生物学 Q4 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Biotechnology & Biotechnological Equipment Pub Date : 2022-12-31 DOI:10.1080/13102818.2022.2055491

Yana Mersinkova, Hyusein Yemendzhiev, V. Nenov

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引用次数: 1

摘要

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。

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

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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来源期刊

Biotechnology & Biotechnological Equipment 工程技术-生物工程与应用微生物

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： Biotechnology & Biotechnological Equipment (B&BE) is an international open access journal publishing cutting-edge research. A modern world requires modern biotechnology and nanobiology. The journal is a forum that provides society with valuable information for a healthy and better life and promotes “the Science and Culture of Nature”. The journal publishes original research and reviews with a multidisciplinary perspective; expanded case reports with a focus on molecular medical research and advanced practice in evidence-based medicine are also considered.