期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 17, 页码 7645-7656出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.05.055
关键词
Low-temperature anaerobic digestion; Trichloroethylene; Specific methanogenic activity and toxicity; qPCR; DGGE
资金
- Enterprise Ireland
- Irish Environmental Protection Agency
- Science Foundation Ireland
The impact of a trichloroethylene (TCE) contaminated wastewater on the microbial community structure of an anaerobic granular biomass at 15 degrees C compared to 37 degrees C was investigated. Four expanded granular sludge bed (EGSB) bioreactors (R1-R4) were employed in pairs at 37 and 15 degrees C. The influents of one of each pair were supplemented with increasing concentrations of TCE (max. 60 mg l(-1)). At 37 degrees C. stable operation was maintained with 88% COD removal and >99% TCE removal at maximum influent TCE concentrations. R3 performance decreased at influent TCE concentration of 60 mg l(-1), although TCE removal rates of >97% were recorded. Archaeal community analysis via clone library and quantitative polymerase chain reaction (qPCR) analysis, and bacterial community analysis via denaturing gradient gel electrophoresis (DGGE), indicated that temperature resulted in a greater change in community structure than the presence of TCE, and clones related to cold adaptation of biomass were identified at 15 degrees C. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据