BUBBLE POINT MEASUREMENTS ON LARGE AREAS OF MICROPOROUS MEMBRANES

被引：35

作者：

REICHELT, G

机构：

[1] AKZO Research Laboratories

来源：

JOURNAL OF MEMBRANE SCIENCE | 1991年 / 60卷 / 2-3期

关键词：

BUBBLE POINT; MICROPOROUS MEMBRANES; PORE DIAMETER; ACOUSTIC SENSOR; DIFFUSIONAL FLOW; BACTERIAL RETENTION;

D O I：

10.1016/S0376-7388(00)81538-0

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The classical bubble point measurement can only be applied to membrane areas limited in size. In the case of areas larger than approx. 0.05 m2 the diffusion flow exceeds the convective flow through individual pores. This difficulty can be avoided by using a microphone as a flow sensor which responds only to convective flows. Filter cartridges with membrane areas of 1 m2 were tested by this method, and the maximum pore sizes compared with the retention capacity with respect to Pseudomonas diminuta. The maximum pore diameters correlate with bacterial retention within a tolerance of +/- 0.3-mu-m.

引用

页码：253 / 259

页数：7