超滤膜与快滤池作为上向流生物滤池后处理工艺的对比研究

口时玉龙L马军王三反。吴德好宋丹潘芹(1哈尔滨工业大学城市水资源开发利用<北方>国家工程研究中心，哈尔滨150090；2城市水资源与水环境国家重点实验室，哈尔滨150090；3兰州交通大学寒旱地区水资源综合利用教育部工程研究中心，兰州730070；4淮南首创水务有限责任公司，淮南232003)摘要结合沿淮某给水厂的上向流复合滤料生物滤池工艺(IJ13F)，对其分别与压力式、浸没式中空纤维超滤膜组件联用进行研究，并与水厂现有的快滤池进行对比。结果表明：两种类型的超滤膜组件，均能有效去除生物滤池出水中的颗粒污染物，可最大限度消除生物滤池存在的微生物泄露风险。与压力式超滤膜相比，浸没式超滤膜运行平稳、维护便捷，化学清洗频率大幅降低，运行4个月内产水衰减率始终低于5．O，表现出良好的抗微生物污染性能。虽然快滤池对颗粒物的控制效果不及超滤膜，但仍可与消毒环节协作确保出厂水安全性，且>95检测天数的滤后水浊度≤O．3NTU。关键词超滤膜上向流生物滤池膜前压力颗粒数Contrastivestudyontheperformancesofultrafiltrationmembraneandrapidfilterasthepost-treatmentunitsofup—flowbiologicalfilterShiYulong，MaJun，WangSanfan。，WuDehao，SongDan，PanQin4(i．NationalEngineeringResearchCenter0fUrbanWaterResources，HarbinInstituteofTechnology，Harbin150090，China；2．StateKeyLabofUrbanWaterResourceandEnvironment，Harbin150090，China；3．EngineeringResearchCenterofWaterResourcesUtilizationinColdandDroughtRegion，SectionofEducation，LanzhouJiaotongUniversity，Lanzhou730070。China；4．HuainanCapitalWaterCo．，Ltd．，Huainan232003，China)Abstract：Theperformanceofup-flowbiologica1filter(UBF)wasstudiedindifferentcombinationwithhollow-filterultrafiltrationmembrane(删)andsubmergedultrafiltrationmembrane(JFM)inawatertreatmentplantalongHuaiRiver．Inaddition，itsperformancewasalsocomparedwiththatofacurrentrapidfilterinthiswatertreamentplant．eresultsshowedthatparticulatecontaminantsinbiofilterefiuentswereeffectivelyremovedbybothtypesofUFmembranecombinations．TheriskofmicrobesleakingoutfromUBFcouldbeeliminatedineachcombinationsystenxIncontrastwith删，theSUFMcouldrunstablywithasignificantlyreducedchemicalcleaningfrequencyandeasymaintenance．Moreover，thepermeateflux&dinerateofJFMafterfourmothsrunningwaslessthan5．0H，indicatingexcellentcapabilityofresistancetobiofouling．AlthoughrapidsandfilterwasnotashigheffectiveasUFmembraneinremovalofparticulatematter．itcouldcooperatewithdisinfectionprocesstosecurethesanitationofproducedwaterfromwaterplantandbeyond95ofthedailyfiltratesturbiditywaslowerthan0．3NruKeywords：Ultrafiltrationmembrane；Up—flowbiofilter；Beforemembraneoperationp