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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：哈尔滨工业大学
学位：博士
所在单位：环境学院
学科：环境工程. 环境科学
电子邮箱：zhanghm@dlut.edu.cn
A novel approach to evaluate the permeability of cake layer during cross-flow filtration in the flocculants added membrane bioreactors
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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：Scopus、SCIE、EI、PubMed
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.