个人信息Personal Information
高级工程师
性别:女
毕业院校:大连理工大学
学位:硕士
所在单位:生物工程学院
电子邮箱:lining@dlut.edu.cn
Combined effects of enrichment procedure and non-fermentable or fermentable co-substrate on performance and bacterial community for pentachlorophenol degradation in microbial fuel cells
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论文类型:期刊论文
发表时间:2012-09-01
发表刊物:BIORESOURCE TECHNOLOGY
收录刊物:SCIE、EI、PubMed、Scopus
卷号:120
页面范围:120-126
ISSN号:0960-8524
关键字:Microbial fuel cell; Pentachlorophenol; Bacterial community; Enrichment procedure; Co-substrate
摘要:Combined effects of enrichment procedure and non-fermentable acetate or fermentable glucose on system performance and bacterial community for pentachlorophenol (PCP) degradation in microbial fuel cells (MFCs) were determined in this study. Co-substrate and PCP were added into MFCs either simultaneously or sequentially. Simultaneous addition with glucose (simultaneous-glucose) achieved the shortest acclimation time and the most endurance to heavy PCP shock loads. Species of Alphaproteobacteria (simultaneous-acetate, 33.9%; sequential-acetate, 31.3%), Gammaproteobacteria (simultaneous-glucose, 44.1%) and Firmicutes (sequential-glucose, 31.8%) dominated the complex systems. The genus Sedimentibacter was found to exist in all the cases whereas Spirochaetes were merely developed in simultaneous-acetate and simultaneous-glucose. While Epsilonproteobacteria were only absent from sequential-acetate, simultaneous-glucose benefited to the evolution of Lentisphaerae. These results demonstrate simultaneous-glucose is a strategy for efficient system performance and the microbiological evidence can contribute to improving understanding of and optimizing PCP degradation in MFCs. (C) 2012 Elsevier Ltd. All rights reserved.