陶瓷膜在高浊度给水处理中的试验研究  

EXPERIMENT STUDY ON CERAMIC MEMBRANE REMOVING HIGH TURBIDITY IN WATER TREATMENT

作　　者：张建国 盛德洋 郭建宁[2] 张锡辉[2] 

机构地区：[1]东江水务有限公司,广东东莞523112 [2]清华大学深圳研究生院,广东深圳518055

出　　处：《水处理技术》2012年第2期115-118,共4页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07423-002)

摘　　要：为了应对给水厂可能存在的高浊度水源风险,研究了陶瓷膜通量的变化规律,以及陶瓷膜过滤对原水浊度、颗粒数的去除效果。结果表明,膜通量基本随膜孔径增大呈上升趋势,过滤初期膜通量下降很快,运行10 min后逐渐稳定。当水源浊度为12 NTU时,4种孔径的膜通量较大,约为500～600L.m-.2h-1;当水源浊度升高为50～500NTU时,4种孔径的膜通量会变小,约为300～400 L.m-.2h-1。陶瓷膜的出水浊度随膜孔径的增大变化不明显,当水源浊度为12～500 NTU时,4种孔径陶瓷膜的出水浊度相近,约为0.1 NTU。>2μm的膜出水颗粒以2～5μm为主,约占总颗粒数的80%。当水源浊度为500 NTU时,5、10 nm孔径膜出水颗粒数变化不大,>2μm颗粒数约为30～80 CNT.mL-1,50、100 nm孔径膜出水>2μm颗粒数分别为215、346 CNT.mL-1。In order to solving the possible venture of high turbidity water source in waterworks,study was made on ceramic membrane flux variety law and reomoving effect for water turbidity and granule substance in the article.Results showed： With membrane aperture increasing,membrane flux increased.Membrane flux decreased fast in the filtration earlier period,and became steady basically 10 min later.when water source turbidity was 12 NTU,four aperture membrane flux was larger,about 500～600 L·m-2·h-1,when water source increased to 50～500 NTU,four aperture membrane flux was smaller,about 300～400 L·m-2·h-1.With membrane aperture increasing,ceramic membrane water turbidity after filtration didn＇t change basically.When water source turbidity was 12～500 NTU,four aperture membrane water turbidity after filtration was same basically,about 0.1 NTU.More than 2 μm granule size in the water after membrane filtration was 2～5 μm mostly,about 80% of total granule number.When water source turbidity was 500 NTU,granule number in the water after 5 and 10 nm aperture membrane filtration was same basically,More than 2 μm granule number was about 30～80 CNT·mL-1,granule number in the water after 50 and 100 nm aperture membrane filtration was 215 and 346 CNT·mL-1 respectively.

关 键 词：陶瓷膜 高浊度 给水处理 

分 类 号：TQ028.8[化学工程]