Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis
Abstract Microbial electrosynthesis (MES) is potentially useful for the biological conversion of carbon dioxide into value-added chemicals and biofuels. The study evaluated several limiting factors that affect MES performance. Among all these factors, the optimization of the applied cell voltage, el...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-08-01
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| Series: | Bioresources and Bioprocessing |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40643-019-0265-5 |
| _version_ | 1818174717554589696 |
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| author | Tian-shun Song Guangrong Wang Haoqi Wang Qiong Huang Jingjing Xie |
| author_facet | Tian-shun Song Guangrong Wang Haoqi Wang Qiong Huang Jingjing Xie |
| author_sort | Tian-shun Song |
| collection | DOAJ |
| description | Abstract Microbial electrosynthesis (MES) is potentially useful for the biological conversion of carbon dioxide into value-added chemicals and biofuels. The study evaluated several limiting factors that affect MES performance. Among all these factors, the optimization of the applied cell voltage, electrode spacing, and trace elements in catholytes may significantly improve the MES performance. MES was operated under the optimal condition with an applied cell voltage of 3 V, an electrode spacing of 8 cm, 2× salt solution, and 8× trace element of catholyte for 100 days, and the maximum acetate concentration reached 7.8 g L−1. The microbial community analyses of the cathode chamber over time showed that Acetobacterium, Enterobacteriaceae, Arcobacter, Sulfurospirillum, and Thioclava were the predominant genera during the entire MES process. The abundance of Acetobacterium first increased and then decreased, which was consistent with that of acetate production. These results provided useful hints for replacing the potentiostatic control of the cathodes in the future construction and operation of MES. Such results might also contribute to the practical operation of MES in large-scale systems. |
| first_indexed | 2024-12-11T19:48:50Z |
| format | Article |
| id | doaj.art-e4b7fc619ec4447aa6a02cc5166c535b |
| institution | Directory Open Access Journal |
| issn | 2197-4365 |
| language | English |
| last_indexed | 2024-12-11T19:48:50Z |
| publishDate | 2019-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Bioresources and Bioprocessing |
| spelling | doaj.art-e4b7fc619ec4447aa6a02cc5166c535b2022-12-22T00:52:49ZengSpringerOpenBioresources and Bioprocessing2197-43652019-08-016111010.1186/s40643-019-0265-5Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesisTian-shun Song0Guangrong Wang1Haoqi Wang2Qiong Huang3Jingjing Xie4State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech UniversityState Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech UniversityState Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech UniversityJiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & TechnologyState Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech UniversityAbstract Microbial electrosynthesis (MES) is potentially useful for the biological conversion of carbon dioxide into value-added chemicals and biofuels. The study evaluated several limiting factors that affect MES performance. Among all these factors, the optimization of the applied cell voltage, electrode spacing, and trace elements in catholytes may significantly improve the MES performance. MES was operated under the optimal condition with an applied cell voltage of 3 V, an electrode spacing of 8 cm, 2× salt solution, and 8× trace element of catholyte for 100 days, and the maximum acetate concentration reached 7.8 g L−1. The microbial community analyses of the cathode chamber over time showed that Acetobacterium, Enterobacteriaceae, Arcobacter, Sulfurospirillum, and Thioclava were the predominant genera during the entire MES process. The abundance of Acetobacterium first increased and then decreased, which was consistent with that of acetate production. These results provided useful hints for replacing the potentiostatic control of the cathodes in the future construction and operation of MES. Such results might also contribute to the practical operation of MES in large-scale systems.http://link.springer.com/article/10.1186/s40643-019-0265-5Microbial electrosynthesisAcetateMicrobial communityLimiting factors |
| spellingShingle | Tian-shun Song Guangrong Wang Haoqi Wang Qiong Huang Jingjing Xie Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis Bioresources and Bioprocessing Microbial electrosynthesis Acetate Microbial community Limiting factors |
| title | Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis |
| title_full | Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis |
| title_fullStr | Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis |
| title_full_unstemmed | Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis |
| title_short | Experimental evaluation of the influential factors of acetate production driven by a DC power system via CO2 reduction through microbial electrosynthesis |
| title_sort | experimental evaluation of the influential factors of acetate production driven by a dc power system via co2 reduction through microbial electrosynthesis |
| topic | Microbial electrosynthesis Acetate Microbial community Limiting factors |
| url | http://link.springer.com/article/10.1186/s40643-019-0265-5 |
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