OPTIMIZATION OF INTERMITTENTLY OPERATED MICROFILTRATION PROCESSES

被引:7
作者
WHITE, DA
LESECQ, P
机构
[1] Nuclear Technology Section, Dept. of Chemical Engineering, Imperial College, London
来源
CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL | 1993年 / 52卷 / 02期
关键词
D O I
10.1016/0300-9467(93)80051-O
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The intermittent initial period of crossflow microfiltration has been studied, and the nature of fouling-layer deposits ascertained by simple physical inspection. At low crossflow velocity, a visible solid deposit was formed on the inside of the tubular membrane, but at high velocities no such layer could be detected. In this regime, fouling was controlled by the concentration polarisation phenomenon. The initial flux in these cases was restored by stopping the apparatus for a few seconds. Cyclical stop-start operation as a way of increasing permeate production is discussed.
引用
收藏
页码:73 / 77
页数:5
相关论文
共 8 条
[1]  
BRAMBACH R, 1989, STUDIES FOULING DURI
[2]   A REVIEW OF FOULING AND FOULING CONTROL IN ULTRAFILTRATION [J].
FANE, AG ;
FELL, CJD .
DESALINATION, 1987, 62 :117-136
[3]  
FARLETON ES, 1990, FILTR SEPARAT, V27, P192
[4]  
FINNIGAN SM, 1989, CHEM ENG RES DES, V67, P278
[5]   MICROFILTRATION MEMBRANES, CROSS-FLOW TRANSPORT MECHANISMS AND FOULING STUDIES [J].
GEKAS, V ;
HALLSTROM, B .
DESALINATION, 1990, 77 (1-3) :195-218
[6]  
MILISIC V, 1986, FILTR SEPARAT, V23, P347
[7]   APPLICATION OF AN ELECTRIC-FIELD FOR THE REDUCTION OF PARTICLE AND COLLOIDAL MEMBRANE FOULING IN CROSS-FLOW MICROFILTRATION [J].
VISVANATHAN, C ;
BENAIM, R .
SEPARATION SCIENCE AND TECHNOLOGY, 1989, 24 (5-6) :383-398
[8]  
WHITE DA, 1992, CHEM ENG J, V48, P11