Pilot-study of micro-polluted water treatment by UF membrane at different fluxes

被引：0
|
作者：
Lu Shu [1 ]
Li Xing [1 ]
Tian Jian-yu [1 ]
机构：
[1] Beijing Bldg Mat Acad Sci Res, State Key Lab Solid Waste Reuse Bldg Mat, Beijing 100041, Peoples R China
来源：
RENEWABLE ENERGY AND ENVIRONMENTAL TECHNOLOGY, PTS 1-6 | 2014年 / 448-453卷
关键词：
membrane flux; fouling; air bubbling; backwashing;
D O I：
10.4028/www.scientific.net/AMM.448-453.1197
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A pilot-scale ultrafiltration (UF) experiment was conducted to determine the effect of membrane flux on pollutants removal performance and membrane fouling. The study results showed that with the increase of the membrane flux (20, 30 and 40 LMH respectively), the removal of turbidity, CODMn and UV254 were slightly decreased. Every 10 LMH more flux increased, the UV254 removal was reduced double. The growth rate of the trans-membrane pressure (TMP) became faster when the membrane flux increased, and 20 LMH could be considered as the critical flux in the raw water quality and working conditions. Membrane fouling rate could be delayed by air bubbling and backwashing. The larger the membrane flux was, the more TNT could be reduced. Furthermore, the effect of delaying the membrane fouling by backwashing was better than by air bubbling.
引用
收藏
页码：1197 / 1201
页数：5
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