title: Effect of bioflocculation on fouling-related biofoulants in a membrane bioreactor during saline wastewater treatments.
abstract: A membrane bioreactor (MBR) was operated in two modes; with and without the inoculation of marine Arthrobacter cells, to investigate the effect of bioflocculation on membrane biofouling during saline wastewater treatments. The MBR-Arthrobacter system showed a higher resistance to membrane fouling than the normal MBR system. Lower concentrations of the fouling-related components and higher removal efficiencies of COD and NH3-N were observed in the MBR-Arthrobacter system. The bioflocculation of Arthrobacter preferred to settle down the humic acid-like, fulvic acid-like and aromatic proteins components (larger biomolecules) rather than the soluble microbial by-product-like components (smaller biomolecules).
authors.affiliation: Department of Environmental Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, China.
authors.forename: Songwen
authors.initials: S
authors.lastname: Tan
authors.affiliation: Department of Chemistry, Yanbian University, Yanji 133002, China.
authors.forename: Chunzhi
authors.initials: C
authors.lastname: Cui
authors.affiliation: School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, Australia.
authors.forename: Xuncai
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Environmental Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, China. Electronic address: lwg123hit@gmail.com.
authors.forename: Weiguo
authors.initials: W
authors.lastname: Li
mesh_terms: D057219:Biofouling; D019149:Bioreactors; D005427:Flocculation; D008567:Membranes, Artificial; D018505:Waste Management / Q000379:methods*; D062065:Wastewater
chemical_list: D008567:Membranes, Artificial; D062065:Wastewater
keywords: Bioflocculation; Extracellular polymeric substances; Membrane fouling; Saline wastewater treatment; Soluble microbial products