title: Treatment of coal gasification wastewater by membrane bioreactor hybrid powdered activated carbon (MBR–PAC) system.
abstract: A laboratory-scale membrane bioreactor hybrid powdered activated carbon (MBR–PAC) system was developed to treat coal gasification wastewater to enhance the COD, total phenols (TPh), NH4+ removals and migrate the membrane fouling. Since the MBR–PAC system operated with PAC dosage of 4 g L−1, the maximum removal efficiencies of COD, TPh and NH4+ reached 93%, 99% and 63%, respectively with the corresponding influent concentrations of 2.27 g L−1, 497 mg L−1 and 164 mg N L−1; the PAC extraction efficiencies of COD, TPh and NH4+ were 6%, 3% and 13%, respectively; the transmembrane pressure decreased 34% with PAC after 50 d operation. The results demonstrate that PAC played a key role in the enhancement of biodegradability and mitigation of membrane fouling.
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.forename: Hongjun
authors.initials: H
authors.lastname: Han
authors.forename: Baolin
authors.initials: B
authors.lastname: Hou
authors.forename: Haifeng
authors.initials: H
authors.lastname: Zhuang
authors.forename: Fang
authors.initials: F
authors.lastname: Fang
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhao
mesh_terms: D064751:Ammonium Compounds / Q000378:metabolism; D001673:Biodegradation, Environmental; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D002606:Charcoal / Q000737:chemistry*; D003031:Coal; D010539:Permeability; D010636:Phenols / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*
chemical_list: D064751:Ammonium Compounds; D002606:Charcoal; D003031:Coal; D010636:Phenols; D062065:Wastewater