文献类型：期刊文献

英文题名：The investigation of different pollutants and operation processes on sludge toxicity in sequencing batch bioreactors

作者：Chen, Xiurong[1];Zhao, Jianguo[1,2];Bao, Linlin[2];Wang, Lu[1];Zhang, Yuying[1]

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

年份：2016

卷号：37

期号：16

起止页码：2048

外文期刊名：ENVIRONMENTAL TECHNOLOGY

收录：;EI(收录号：20203209033331);WOS:【SCI-EXPANDED(收录号:WOS:000379772100005)】；

基金：This research was financially supported by the National Natural Science Foundation [Grant no. No. 51378207], the Special S&T Project on Treatment and Control of Water Pollution [Grant no. 2014ZX07202-011-002], Shanghai Pujiang Program [Grant no. 13PJD009] and Key Scientific and Technological Project of Henan Province [Grant no. 142102310272, 132102310335] in China.

语种：英文

外文关键词：DMF and BPA synthetic wastewater; sludge toxicity; gradual acclimation process; impaction process; proteomics analysis

摘要：The influence of different target pollutants and operation modes in sequencing batch bioreactors (SBRs) on sludge toxicity was compared in this study. Sludge toxicity was characterized by the inhibiting luminosity through using luminescent bacterium Photobacterium phosphoreum (P. phosphoreum) during either gradual acclimation or impaction processes with synthetic wastewater containing high-strength bisphenol A (BPA) or N, N-dimethylformamide (DMF). When the activated sludge was first acclimated with either 120 mg/L DMF or 20 mg/L BPA, and then respectively increased to 200 mg/L DMF and 40 mg/L BPA it was defined as gradual acclimation process, whereas when the activated sludge was, respectively, injected with 200 mg/L DMF and 40 mg/L BPA directly it was defined as impaction process. Results showed that the toxicity of the impacted sludge was greater than that of the gradual acclimated sludge, especially in the initial stage before 10 d. Activated sludge treating BPA synthetic wastewater exhibited higher toxicity due to the more inhibition of BPA to sludge activity compared to that of DMF. The proteomics analysis indicated that the stress responses of activated sludge to DMF and BPA stimulation were both significant. In turn, the secretions from two kinds of sludge under stress conditions contributed to sludge toxicity.