期刊
BIORESOURCE TECHNOLOGY
卷 291, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.121862
关键词
Phenolic compounds; Microbial fuel cells; Degradation; Dynamic shift; Anode microbial community
资金
- Jiangsu Synergetic Innovation Center for Advanced Bio-Manufacture
- Key Research and Development Technology of Ningxia Hui Autonomous Region [2019BFH02008]
- Qing Lan Project of Jiangsu Universities
- Six Talent Peaks Project in Jiangsu Province
- National Natural Science Foundation of China [21777069]
- National Key Research and Development Program of China [2016YFE0112800]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
This study evaluated the feasibility of microbial fuel cells (MFCs) for simultaneous electricity generation and degradation of phenolic compounds. The voltage generation was inhibited by 36.18-63.90%, but the degradation rate increased by 146.15-392.31% when the initial concentration of syringic acid (SA), vanillic acid (VA), and 4-hydroxybenzoic acid (HBA) increased from 0.3 to 3.0 g/L. The collaboration among the functional microbes significantly enhanced the degradation rate of parent compounds and their intermediates in MFCs systems, while the accumulated intermediates severely inhibited their complete mineralization in fermentative systems. High-throughput sequencing showed that the growth of fermentative bacteria prevailed, but electrogenic bacteria were inhibited in the anode microbial community (AMC) under high concentrations of phenolic compounds (3.0 g/L). These findings provide a better understanding of the dynamic shift and synergy effects of the AMC to evaluate its potential for the treatment of phenolic-containing wastewater.
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