Bioaugmentation of microbial electrolysis cells with Geobacter sulfurreducens YM18 for enhanced hydrogen production from starch

被引:12
作者
Ochiai, Itta [1 ]
Harada, Tomoka [1 ]
Jomori, Shinji [2 ]
Kouzuma, Atsushi [1 ]
Watanabe, Kazuya [1 ]
机构
[1] Tokyo Univ Pharm & Life Sci, Sch Life Sci, Hachioji, Tokyo 1920392, Japan
[2] Toyota Motor Co Ltd, Adv Mat Engn Div, Susono, Shizuoka 4101193, Japan
关键词
Microbial electrolysis cell; Geobacter; Bioaugmentation; Quantitative PCR; POLYSACCHARIDE; PERFORMANCE; BACTERIA; SURFACE; SOIL;
D O I
10.1016/j.biortech.2023.129508
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
Double-chamber microbial electrolysis cells (MECs) were operated using starch-based medium as the anolyte and rice paddy-field soil as the anode inoculum, and hydrogen production from the cathode chamber was examined. In order to enhance current generation and hydrogen production, the anode chamber was bioaugmented with Geobacter sulfurreducens strain YM18, and its effects were evaluated based on the performances of non-bioaugmented controls. Results show that the bioaugmented MEC generated threefold greater current during one-month operation and produced sixfold greater amounts of hydrogen than those of the non-bioaugmented control. Quantitative PCR and metabarcoding analyses confirmed successful colonization of anode surfaces with YM18, suggesting the utility of bioaugmentation with YM18 for enhancing the performance of bio-electrochemical systems, including MECs treating biomass wastes.
引用
收藏
页数:7
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