Modelling of filtration: from the polarised layer to deposit formation and compaction

被引：47

作者：

Bacchin, P ^{[1
]}

Meireles, M ^{[1
]}

Aimar, P ^{[1
]}

机构：

[1] Univ Toulouse 3, Lab Genie Chim, UMR 5503, F-31062 Toulouse 4, France

来源：

DESALINATION | 2002年 / 145卷 / 1-3期

关键词：

modelling; ultrafiltration; fouling; membrane; colloids; osmotic pressure;

D O I：

10.1016/S0011-9164(02)00399-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 [化学工程与技术];

摘要：

A theoretical study is developed for the modelling of mass accumulation from the polarised layer to the fort-nation of a deposit. Concentrated suspension properties are accounted for through a solid pressure corresponding to osmotic pressure in the suspension and to compression resistance in the deposit. Mass and solvent transfer are depicted through balanced permeation/diffusion transport in the polarised layer and balanced friction/compaction forces in the deposit. The modelling applied to transient state for dead end filtration gives information about the coupling between mass transfer in the polarised layer and in the deposit. Consequences on specific cake resistance are presented and discussed.

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页码：139 / 146

页数：8

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