|Table of Contents|

Chemical Cleaning of Reverse Osmosis Membrane for Treating Electroplating Wastewater(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2010年02期
Page:
50-53
Research Field:
化学
Publishing date:

Info

Title:
Chemical Cleaning of Reverse Osmosis Membrane for Treating Electroplating Wastewater
Author(s):
Yan Hailin1; Zhang Xianqiu2; Du Minxia2; Yang Liu2; Wang Fenghe2
1.Editorial Board of Journal of Nanjing Normal University,Nanjing Normal University,Nanjing 210097,China 2. School of Pow er E ngineering, Nan jing Norm alUn ivers ity, Nan j ing 210042, China
Keywords:
chem ica l clean ing;  reverse osm osis membrane;  m em brane fouling;  e lectrop la ting w astew ater
PACS:
X703
DOI:
-
Abstract:
A s an advanced w atertreatm ent techono logy, reverse osm osis ( RO) is increasing ly used in w astew ater deep treatm ent or w astewa ter reuse. But a key po in t is the con tro l of membrane fouling. Chem ica l clean ing is an effic ient m ethod for contro lling m embrane fouling. A m initype RO equ ipm ent, wh ich was used fo r treating e lectroplating w astew ater fo r a long tim e, was cleaned firstlyw ith 1% HC ,l then w ith 1% NaOH and 0.025% NaSDS so lution, fina lly w ith 50m g /L DBNPA. A fter clean ing, the pene tra te flux increased from 13.9 L /m2. h to 28.3 L /m2.h w ith the oper a tion pressure at 0.5MPa. In add ition, analyzed results show ed that when RO was used on trea ting e lectroplating w astew ater, the m ain factor that caused m em brane fou ling w as heavy m eta l eas ily adsorbed on sur face o fm em brane.

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Last Update: 2013-04-08