电场作用下的十字流膜滤.PDF

1997 5 　　　　　 30　 3 　　　　　　 　　　　　　 May 1997 JOURNAL OF TIANJIN UNIVERSITY Vol. 30　No. 3 * 赵宗艾 　钟富优 () 　　　针对普通十字流膜滤中膜滤速率低下问题 ,试验研究了附加电场下的十字流膜滤.实 验观察了电泳迁 作用使膜面沉积层消失的过程及膜滤中的电渗流,并从理论上分析了附加电场 使膜滤速率大幅度提高的机理. : ,, : T Q028. 8 - CROSS FLOW MEMBRANE FILTRATION WITH ELECTROSTATIC FIELD Zhao Zongai　Zhong Fuyou ( Dept. of Chemical Eng. ) 　　 　 - , Abstract As the filtration flu of the ordinary cross flow membrane filt ration is very slow - . the cross flow membrane filt ration with electrastatic field is studied The disapearance of the de- posit on the membrane surface as a result of eletrophoresis and elect roosmosis during the mem- brane filtration w as observed. The reason wh y the membrane filt ration flu with elect rostatic field increases sharply is also analy sed theoretically. K y words: electrostatic field, cross-flow , membrane filtration [1, 2 ] 　　. ., ,. [ 3～ 5] () ,, . 　 1995 7 20, 1995 12 4. 　* 1939, , . Born in 1939, fem. , associate prof. ·354· 　　　　　　　　　　　　　　　　　　　　 1997 5 1　 　　( 1). , 18-8,. .. ,. 1　 Fig. 1　Apparatus us d in th xp rim nts 1- ; 2- ; 3- ; 4- ; 5- O ; 6- ; 7- ; 8- 　　、, 1　 1. ζ SiO2 Tab. 1　M mbran s us d in t