文献类型：期刊文献

英文题名：Coupling ozone and hollow fibers membrane bioreactor for enhanced treatment of gaseous xylene mixture

作者：Wang, Zhenwen[1];Xiu, Guangli[1];Qiao, Ting[1];Zhao, Kang[1];Zhang, Danian[1]

机构：[1]E China Univ Sci & Technol, State Environm Protect Key Lab Risk Assessment &, Shanghai 200237, Peoples R China

年份：2013

卷号：130

起止页码：52

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20130315915709);WOS:【SCI-EXPANDED(收录号:WOS:000316032300008)】；

基金：The authors would like to thank all group members for assistance of experiments. This study was financially supported by the Fundamental Research Funds for the Central Universities (WB1113005) and China Science and technology support program ( 2010BAK67B15). Thank Dr. Lina Wang, from Queensland University of Technology, Australia for grammar check.

语种：英文

外文关键词：Ozone; HFMBR; Xylene; Volatile organic compounds (VOCs)

摘要：Two hollow fiber membrane bioreactors (HFMBRs) inoculated with activated sludge were used in series to biodegrade continuously mixed xylene. The influence of gas residence time (tau) and mass loading rate (LR) on elimination capacity (EC) of the mixed xylene was investigated. A maximum elimination capacity (ECmax,v) of 466 g m(-3) h(-1) was achieved at tau = 10 s and LRv = 728 g m(-3) h(-1). Thereafter, ozone was introduced into inlet gas and the influence of ozone was investigated. Results showed that the maximum xylene elimination capacity increased from 524 g m(-3) h(-1) to 568 g m(-3) h(-1) and 616 g m(-3) h(-1) at tau = 10 s, respectively when the inlet ozone concentration rose from 200 mg m(-3) to 400 mg m(-3) and 600 mg m(-3), respectively. HFMBR coupled with O-3 has higher performance and stability for the long-term operation at the same condition. (C) 2012 Elsevier Ltd. All rights reserved.