利用生物电化学系统从二氧化碳中同时生产甲烷和醋酸盐

Q4 Agricultural and Biological Sciences

应用与环境生物学报 Pub Date : 2013-12-13 DOI:10.3724/SP.J.1145.2013.00833

J. Yong, S. Min, Z. Yao, Tao Yong, Li Daping

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引用次数: 4

摘要

利用生物电系统将CO2还原为有机物已成为环境微生物学的一个研究领域。本研究构建了一个生物电化学系统(BES)，该系统能够通过非生物产氢和/或直接胞外电子转移将CO2还原为CH4和CH3COOH。CH4和CH3COOH的产率分别为17.3 mL h-1L-1和13.9 mg h-1L-1(电位-1 100 mV)。在批量恒电位实验中，电流捕获效率达到94.0%。微生物鉴定结果表明，微生物群主要由palustre Methanobacterium,Methanocorpusculum parvum和Acetobacterium sp.组成。这些结果表明，BESs中混合培养可以通过不同的方式接受电子，将CO2转化为多种有机化合物。

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Simultaneous Production of Methane and Acetate from Carbon Dioxide with Bioelectrochemical Systems

Reduction of CO2 to organics with bioelectrical systems has become a research area of environmental microbiology.This study constructed a bioelectrochemical system(BES) capable of reducing CO2 to CH4 and CH3COOH via abiotical H2 gas production and/or direct extracellular electron transfer. CH4 and CH3COOH were produced at rates of 17.3 mL h-1L-1 and 13.9 mg h-1L-1, respectively(at potential of-1 100 mV). The current capture efficiency reached 94.0% in batch potentiostatic experiments. Microbial characterization revealed that the microbial populations consisted of Methanobacterium palustre,Methanocorpusculum parvum, and acetogen Acetobacterium sp. These results suggested that mixed culture in BESs can convert CO2 into various organic compounds by accepting electrons in different ways.

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来源期刊

应用与环境生物学报 Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

1.20

自引率

0.00%

发文量

4458

期刊介绍： The “Chinese Journal of Applied and Environmental Biology” is a national scientific and technological journal published both at home and abroad. It was started in 1995 and became bimonthly in 1999, and now it is a core journal for applied and environmental biology in China. It aims to introduce and exchange the new achievements, new technologies, new methods and new progresses made from the research fields of biology and its related disciplines both in China and abroad; enhance scientific and technological research serving for the development and construction of national economy, and improvement of people’s living standards.