title: A novel approach for quantitative evaluation of the physicochemical interactions between rough membrane surface and sludge foulants in a submerged membrane bioreactor.
abstract: This study proposed a novel approach for quantitative evaluation of the physicochemical interactions between a particle and rough surface. The approach adopts the composite Simpson's rule to numerically calculate the double integrals in the surface element integration of these physicochemical interactions. The calculation could be achieved by a MATLAB program based on this approach. This approach was then applied to assess the physicochemical interactions between rough membrane surface and sludge foulants in a submerged membrane bioreactor (MBR). The results showed that, as compared with smooth membrane surface, rough membrane surface had a much lower strength of interactions with sludge foulants. Meanwhile, membrane surface morphology significantly affected the strength and properties of the interactions. This study showed that the newly developed approach was feasible, and could serve as a primary tool for investigating membrane fouling in MBRs.
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China. Electronic address: linhonjun@163.com.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Lin
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
authors.forename: Meijia
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Environmental Science Research and Design Institute of Zhejiang Province, Hangzhou 310007, PR China.
authors.forename: Rongwu
authors.initials: R
authors.lastname: Mei
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
authors.forename: Jianrong
authors.initials: J
authors.lastname: Chen
authors.affiliation: College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, PR China.
authors.forename: Huachang
authors.initials: H
authors.lastname: Hong
mesh_terms: D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D008567:Membranes, Artificial; D008956:Models, Chemical; D012722:Sewage / Q000382:microbiology*; D013499:Surface Properties; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D012722:Sewage; D062065:Wastewater
keywords: Membrane bioreactor; Membrane fouling; Physicochemical interaction; Rough membrane surface