期刊
BIORESOURCE TECHNOLOGY
卷 166, 期 -, 页码 592-595出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.05.061
关键词
Biologically pretreated coal gasification wastewater; Heterogeneous catalytic ozonation; Catalyst; Mechanism discussion; Biological process
资金
- Sino-Dutch Research Program [SDRP: 2012-2016]
- independent subject - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2013DX10]
Advanced treatment of biologically pretreated coal gasification wastewater (CGW) was investigated employing heterogeneous catalytic ozonation integrated with anoxic moving bed biofilm reactor (ANMBBR) and biological aerated filter (BAF) process. The results indicated that catalytic ozonation with the prepared catalyst (i.e. MnOx/SBAC, sewage sludge was converted into sludge based activated carbon (SBAC) which loaded manganese oxides) significantly enhanced performance of pollutants removal by generated hydroxyl radicals. The effluent of catalytic ozonation process was more biodegradable and less toxic than that in ozonation alone. Meanwhile, ANMBBR-BAF showed efficient capacity of pollutants removal in treatment of the effluent of catalytic ozonation at a shorter reaction time, allowing the discharge limits to be met. Therefore, the integrated process with efficient, economical and sustainable advantages was suitable for advanced treatment of real biologically pretreated CGW. (C) 2014 Elsevier Ltd. All rights reserved.
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