THE EFFECTS OF SMALL HALOCARBONS ON RO MEMBRANE PERFORMANCE

被引:10
作者
CHENG, R
GLATER, J
NEETHLING, JB
STENSTROM, MK
机构
[1] HDR ENGN INC,ELDORADO HILLS,CA
[2] UNIV CALIF LOS ANGELES,DEPT CIVIL ENGN,LOS ANGELES,CA 90024
关键词
D O I
10.1016/0011-9164(91)85144-J
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The effects of small halocarbons, CHCl3, CHBr3 and CCl4, at 50 mg/l concentrations on the performance of three typical RO membranes were examined. Cellulose acetate, polyamide and advanced composite membranes were used in this study. The flux, total dissolved solids (TDS) rejection, halocarbon rejection, partition coefficient and void volume tests were conducted to evaluate the effects of halocarbon addition. In general, the halocarbons were poorly rejected by all three membranes. This was accompanied by increased rates of flux decline and increased TDS rejection over controls without halocarbons. Partition tests revealed the advanced composite membrane adsorbed all three test halocarbons much more strongly than either cellulose acetate or polyamide membranes. The strong affinity for halocarbons must be considered when using the advanced composite membrane for various waste water applications.
引用
收藏
页码:33 / 44
页数:12
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