Applicationof100000uultrafiltrationmembranetechniquetothetreatmentofsand-filteringbackwashwastewatersystemDaiBo,HuXiaobing(BuildingIndustryAcademy,AnhuiUniversityofIndustry,Maanshan243002,China)10u,(,243002)[],10u/()。:,,,,。[];;/[]X703[]B[]1005-829X(2010)05-0067-03Abstract:Coagulatingpretreatmenthasbeenadopted.Thetreatmentofwastewaterfromtapwaterproduction(sand-filteringbackwashwastewater)iscarriedthroughbyestablishingthe100000uofultrafiltrationmembranetechnolo-gyandcomposingcoagulation/membranetechnology.Theresultsofpilot-scaletestshowthatthecombinationofcoagu-latingpretreatmentwithmembranesubassembliesmakesthesubassembliesworkstablyandtheeffluentwaterqualityexcellent.Thewaterqualityreachesthedrinkingwaterqualitystandardperfectly,indicatingthistechnologyissuit-ableforthetreatmentofsand-filteringbackwashwastewater.Keywords:ultrafiltrationmembrane;sand-filteringbackwashwastewater;coagulation/membranecombinationtechnology,(),。、,3%~8%,。、。,,。、、、,/,。11.11。,,,。,,。,。PLC,,。,30520105IndustrialWaterTreatmentVol.30No.5May,201067——2010-05,30(5),2m,。4:A10u,,55m2,0.08μm;B3.5u,,55m2(Kristal300),0.1μm;C,PVDF,42m2,0.2μm;D,39.2m2,0.5μm。〔1〕,,,。:41.5min,40min,1.5min。1.2,、,、。40m3/d。1.3,〔2〕;(SDI)QCTFI-47SDI。22.1,A、B、C、D4,,2。2,4,,。,3:(1)。,A,25d5kPa。(2)。,,,B、C。(3)。,,D。,:,。,,,,,,,。,,,,,,。(1×105Pa),,,,,,NaClO,2mg/L。,:D1d、C20d、B25d、10uA60d。A,,。10uA。2.2,2〔3-4〕:,,;,6mg/LFeCl3,3。3,,,,,,。,,,,,,,。68——2010-05,30(5),,,,,。,。,,。2.3,20d,1。:,,0.1NTU,,99.99%。,CODCr1.3mg/L0.89mg/L,13%、68%。,0.2mg/L。,,,18000~20000mL-1,3mL-1,100%,。,。,1.8~2.83mg/L,2.22mg/L,0.01~0.14mg/L,0.06mg/L,97.3%。0.2mg/L,。,10u,100%。。2.4SDISDI,,SDI3,;SDI3~5,;SDI5,。,。SDI4。,SDI,3,,。3:10u,。,。,,,。SDI,,。。[][1],.[J].,2001,2(3):62-69.[2].[M].3.:,2002:88-284.[3],.[J].,2005,25(2):80-85.[4],,.、[J].,1997,23(24):187-193.120d/NTU/(mg·L-1)CODCr/(mg·L-1)/(mg·L-1)/mL-1/(mg·L-1)100~10001.5~2.72.8~4.00.2~0.4518000~200001.8~2.9≤0.1≤1.3≤0.890.1~0.13≤30.01~0.14[](1973—),1997,,。:13905553456,E-mail:dbxjr@163.com。[]2009-12-10(),:10u69——