Journal
BIORESOURCE TECHNOLOGY
Volume 198, Issue -, Pages 918-921Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.09.080
Keywords
Biologically pretreated coal gasification wastewater; Three-dimensional catalytic electro-Fenton; Membrane bioreactor; Hydroxyl free radicals; Bacteria self repair
Funding
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2015DX02]
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Laboratorial scale experiments were conducted to investigate a novel system three-dimensional catalytic electro-Fenton (3DCEF, catalyst of sewage sludge based activated carbon which loaded Fe3O4) integrating with membrane bioreactor (3DCEF-MBR) on advanced treatment of biologically pretreated coal gasification wastewater. The results indicated that 3DCEF-MBR represented high efficiencies in eliminating COD and total organic carbon, giving the maximum removal efficiencies of 80% and 75%, respectively. The integrated 3DCEF-MBR system significantly reduced the transmembrane pressure, giving 35% lower than conventional MBR after 30 days operation. The enhanced hydroxyl radical oxidation and bacteria self repair function were the mechanisms for 3DCEF-MBR performance. Therefore, the integrated 3DCEF-MBR was expected to be the promising technology for advanced treatment in engineering applications. (C) 2015 Published by Elsevier Ltd.
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