Modeling of flux enhancement in presence of concentration polarization by pressure pulsation during laminar cross flow ultrafiltration

被引：0

作者：

Kumar, Kamal ^{[1
]}

De, Sirshendu ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem Engn, Kharagpur 721302, W Bengal, India

来源：

MEMBRANE AND WATER TREATMENT | 2010年 / 1卷 / 04期

关键词：

pulsatile flow; osmotic pressure controlling; ultrafiltration; permeate flux; retention; ELECTRIC-FIELD; MEMBRANE; MICROFILTRATION; FILTRATION; MECHANISMS;

D O I：

暂无

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A theoretical study for the flux enhancement by pulsation of transmembrane pressure is presented for osmotic pressure controlled ultrafiltration under laminar flow regime. The transient velocity profile is solved analytically using Green's function method. Time dependent convective diffusive equation is solved to quantify the membrane surface concentration and the permeate flux, numerically. The effects of the amplitude and frequency of pulsation on flux, surface concentration and observed retention are studied.

引用

页码：253 / 271

页数：19

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