A new method for modeling rough membrane surface and calculation of interfacial interactions. (January 2016)

• Record Type: Journal Article
• Authors: Zhao, Leihong; Zhang, Meijia; He, Yiming; Chen, Jianrong; Hong, Huachang; Liao, Bao-Qiang; Lin, Hongjun
• Is Part Of: Bioresource technology. Volume 200(2016)
• Page Start: 451
• Page End: 457
• Publication Date: 2016-01
• Subjects: Membrane fouling -- Rough surface -- Interfacial interactions -- XDLVO theory -- Membrane bioreactor; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2015.10.055
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: A rigorous equation for modeling membrane surface morphology was established. A new method to assess interfacial interactions with rough surface was developed. Membrane surface morphology exerted profound effects on membrane fouling. The new method was feasible in application in the MBR. Abstract: Membrane fouling control necessitates the establishment of an effective method to assess interfacial interactions between foulants and rough surface membrane. This study proposed a new method which includes a rigorous mathematical equation for modeling membrane surface morphology, and combination of surface element integration (SEI) method and the composite Simpson's approach for assessment of interfacial interactions. The new method provides a complete solution to quantitatively calculate interfacial interactions between foulants and rough surface membrane. Application of this method in a membrane bioreactor (MBR) showed that, high calculation accuracy could be achieved by setting high segment number, and moreover, the strength of three energy components and energy barrier was remarkably impaired by the existence of roughness on the membrane surface, indicating that membrane surface morphology exerted profound effects on membrane fouling in the MBR. Good agreement between calculation prediction and fouling phenomena was found, suggesting the feasibility of this method.