title: Real-time monitoring of biofoulants in a membrane bioreactor during saline wastewater treatment for anti-fouling strategies.
abstract: This work presents a novel, fast and simple monitoring-responding method at the very early stages of membrane bio-fouling in a membrane bioreactor (MBR) during saline wastewater treatment. The impacts of multiple environmental shocks on membrane fouling were studied. The transmembrane pressure exceeded the critical fouling pressure within 8days in the case of salinity shock or temperature shock. In the case of DO shock, the transmembrane pressure exceeded the critical fouling pressure after 16days, showing the lower impact of DO shock on the MBR. In another study, the membrane fouling was observed within 4days responding to mixed environmental shocks. To decrease the potential of membrane bio-fouling, another bioreactor was integrated immediately with the MBR as a quickly-responded countermeasure, when an early warning of membrane bio-fouling was provided. After the bioreactor enhancement, the time required for membrane fouling increased from 4 to 10days.
authors.affiliation: Department of Environmental Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, China; Department of Chemistry, Yanbian University, Yanji 133002, China.
authors.forename: Songwen
authors.initials: S
authors.lastname: Tan
authors.affiliation: Department of Biological Science, Hunan Normal University, Changsha 410000, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Hou
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; D008567:Membranes, Artificial; D054712:Salinity; D012965:Sodium Chloride / Q000737:chemistry; D062065:Wastewater; D018508:Water Purification
chemical_list: D008567:Membranes, Artificial; D012965:Sodium Chloride; D062065:Wastewater
keywords: Environmental shocks; Membrane bio-fouling; Membrane bioreactor; Monitoring; Saline wastewater treatment