Microbial dynamics and performance in a microbial electrolysis cell-anaerobic membrane bioreactor

被引：10
|
作者：
Du, Shu-wen [1 ]
Sun, Chao [2 ]
Ding, A-qiang [1 ]
Chen, Wei-wang [1 ]
Zhang, Ming-jie [1 ]
Cheng, Ran [1 ]
Wu, Dong-lei [1 ]
机构：
[1] Zhejiang Univ, Dept Environm Engn, Coll Environm & Resource Sci, Hangzhou 310027, Peoples R China
[2] Shanghai SUS Environm Co Ltd, Shanghai 201703, Peoples R China
来源：
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2019年 / 20卷 / 07期
关键词：
Microbial electrolytic cell-anaerobic membrane bio-reactor (MEC-AnMBR); Chemical oxygen demand (COD) removal efficiency; Methane production; Membrane fouling; Microbial mechanism; WASTE-WATER TREATMENT; FUEL-CELL; HYDROGEN-PEROXIDE; ENERGY RECOVERY; APPLIED VOLTAGE; SYSTEM; RESISTANCE; REACTOR; SEPARATION; MECHANISM;
D O I：
10.1631/jzus.A1900009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Membrane fouling restricts the wide application of anaerobic membrane bio-reactors (AnMBRs). In this study, a microbial electrolytic cell (MEC)-AnMBR biosystem was constructed to relieve membrane fouling. Total chemical oxygen demand (COD) removal efficiency and methane production in MEC-AnMBR were increased to 6.7% and 77.1%, respectively, in comparison to AnMBR. The membrane fouling of MEC-AnMBR was greatly lessened by the slower growth of extracellular polymeric substances (EPS) and soluble microbial products (SMP). High-throughput sequencing analysis showed that Synergistaceae-uncultured and Thermovirga were enriched in MEC-AnMBR, and Thermovirga was found as the key functional microorganism. These results indicated that MEC-AnMBR could simultaneously enhance the reactor efficiency and mitigate membrane fouling.
引用
收藏
页码：533 / 545
页数：13
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