title: Advanced treatment of biologically pretreated coal gasification wastewater by a novel integration of three-dimensional catalytic electro-Fenton and membrane bioreactor.
abstract: 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.
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
authors.forename: Shengyong
authors.initials: S
authors.lastname: Jia
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: han13946003379@163.com.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Han
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
authors.forename: Baolin
authors.initials: B
authors.lastname: Hou
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhuang
mesh_terms: D019149:Bioreactors; D003031:Coal; D055664:Electrochemical Techniques; D008567:Membranes, Artificial; D062065:Wastewater / Q000032:analysis / Q000737:chemistry; D018508:Water Purification
chemical_list: D003031:Coal; D008567:Membranes, Artificial; D062065:Wastewater
keywords: Bacteria self repair; Biologically pretreated coal gasification wastewater; Hydroxyl free radicals; Membrane bioreactor; Three-dimensional catalytic electro-Fenton