文献类型：期刊文献

英文题名：Correlation between microbial diversity and toxicity of sludge treating synthetic wastewater containing 4-chlorophenol in sequencing batch reactors

作者：Zhao, Jianguo[1,2];Chen, Xiurong[1];Bao, Linlin[2];Bao, Zheng[1];He, Yixuan[1];Zhang, Yuying[1];Li, Jiahui[1]

机构：[1]E China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Henan Normal Univ, Key Lab Yellow River & Huai River Water Environm, Henan Key Lab Environm Pollut Control, Minist Eduact, Xinxiang 453007, Peoples R China

年份：2016

卷号：153

起止页码：138

外文期刊名：CHEMOSPHERE

收录：;EI(收录号：20161302159758);WOS:【SCI-EXPANDED(收录号:WOS:000375628800016)】；

基金：This study was financially supported by the Natural Science Foundation (No. 51378207), the Shanghai Pujiang Program (No. 13PJD009), the Special S&T Project on Treatment and Control of Water Pollution (No. 2014ZX07202-011) and Key Scientific and Technological Project of Henan Province (No. 1421023310272, 132102310335) in China.

语种：英文

外文关键词：4-Chlorophenol; Synthetic wastewater; Sludge toxicity; Microbial diversity; Sequencing batch reactor

摘要：The relationship between microbial diversity and sludge toxicity in the biotreatment of refractory wastewater was investigated. Synthetic wastewater containing 4-chlorophenol (4-CP) was treated by an activated sludge using a sequencing batch bioreactor (SBR). At the end of a single SBR cycle, a stable operation stage was reached when the 4-CP was not detected both in aqueous and sludge phases and the effluent COD was maintained at approximately 70 mg L-1 for the blank and control sludge groups. Then, the diversity of the microorganisms and the sludge toxicity were measured. The results showed that the Microtox acute toxicity of the control sludge was higher than those of the blank sludge. The difference analysis of the microbial diversity between the blank and control sludge indicated that the sludge toxicity was closely related to microbial diversity. (C) 2016 Elsevier Ltd. All rights reserved.