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发布时间：2019-03-09

论文类型：期刊论文

发表时间：2011-12-01

发表刊物：BIORESOURCE TECHNOLOGY

收录刊物：PubMed、EI、SCIE、Scopus

卷号：102

期号：24

页面范围：11121-11131

ISSN号：0960-8524

关键字：Membrane fouling; Cake layer; Permeability; Modeling; Operating parameters

摘要：In order to obtain a better understanding of the cake layer formation mechanism in the flocculants added MBRs, a model was developed on the basis of particle packing model considering cake collapse effect and a frictional force balance equation to predict the porosity and permeability of the cake layers. The important characteristic parameters of the flocs (e.g., floc size, fractal dimensions) and operating parameters of MBRs (e.g., transmembrane pressure, cross-flow velocity) are considered in this model. With this new model, the calculated results of porosities and specific cake resistances under different MBR operational conditions agree fairly well with the experimental data. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.