CONCENTRATION POLARIZATION AND FOULING DURING ULTRAFILTRATION OF COLLOIDAL SUSPENSIONS AND HYDROPHOBIC SOLUTES

被引：22

作者：

JONSSON, AS

机构：

[1] Department of Chemical Engineering I, Lund University, S-221 00 LUND

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1995年 / 30卷 / 02期

关键词：

ULTRAFILTRATION; CONCENTRATION POLARIZATION; FOULING; SILICA SOL; FATTY ACID; SOAP;

D O I：

10.1080/01496399508015840

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Flux reductions experienced during ultrafiltration are due either to concentration polarization or fouling. It is usually difficult to distinguish between these two phenomena, but by using a turbulence-promoting module it is possible to determine the reversibility of a flux reduction, and thus distinguish between concentration polarization and fouling. By using a turbulence-promoting module, it is also possible to distinguish between different cases of fouling. In this paper, fouling caused by the deposition of material at the surface of the membrane is illustrated by results from tests with a silica sol, and fouling due to interactions in the membrane matrix is illustrated by results from ultrafiltration of a low-molecular organic solute.

引用

页码：301 / 312

页数：12

共 29 条

[1] DIAGNOSIS OF MEMBRANE FOULING USING A ROTATING ANNULAR FILTER .2. DILUTE PARTICLE SUSPENSIONS OF KNOWN PARTICLE-SIZE [J].