Characterization of fouling kinetics in ultrafiltration systems by resistances in series model

被引:87
作者
Tansel, B
Bao, WY
Tansel, IN
机构
[1] Florida Int Univ, Dept Civil & Environm Engn, Miami, FL 33199 USA
[2] Florida Int Univ, Drinking Water Res Ctr, Miami, FL 33199 USA
[3] Florida Int Univ, Dept Mech Engn, Miami, FL 33199 USA
关键词
membrane fouling; flux; water treatment; ultrafiltration; membrane processes; resistances-in-series model; membrane resistance;
D O I
10.1016/S0011-9164(00)00046-1
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Membrane processes are gaining importance for water treatment applications as a result of the advances in membrane technology and increasing requirements on water quality. Membrane fouling, which results in loss of productivity, is one of the most important operational concerns of membrane processes. A number of theoretical models have been developed to explain membrane fouling mechanisms. These models use the system parameters (i.e., viscosity, pore size, membrane thickness, pressure) and unsteady-state material and flow balance equations with specific boundary conditions. As a result, they are of scientific interest and have limited use for practical applications. The purpose of the study was to develop a simple flux model to estimate the characteristic fouling times for ultrafiltration systems based on operational data. A simple first-order model was developed based on the resistances-in-series approach to correlate flux to a characteristic clean membrane parameter, system parameters. The model was used to estimate the characteristic fouling times of a laboratory ultrafiltration system.
引用
收藏
页码:7 / 14
页数:8
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