超滤膜在沿淮某水厂与各生产工艺联用试验研究

12121233123121．＜＞1500902．1500903．232003、。、CODMn、。。、。。。[e-mail]rationMembraneinCombinationwithDifferentConventionalTreatmentProcessesinaDrinkingWaterTreatmentPlantalongHuaiＲiverSHIYu-long12SONGDan12TIANHai12CAOPing3ZHAOShu-yong3LUOCong-wei12PANQin3MAJun121．NationalEngineeringＲesearchCenterofUrbanWaterＲesourcesHarbinInstituteofTechnologyHarbin150090China2．StateKeyLabofUrbanWaterＲesourceandEnvironmentHarbin150090China3．HuainanCapitalWaterCo．Ltd．Huainan232003ChinaAbstractTheperformancesofthecombinedprocessesofinclinedtubesettlerhorizontalairflo-tationtankandup-flowbiofilterwithultrafiltrationmembranemoduleswereinvestigatedrespectivelyandwascomparedtotheconventionalrapidsandfiltrationunitofthedrinkingwatertreatmentplant．There-sultsshowedthattheparticlesandmicrobesintheinclinedtubesettlerandflotationeffluentscouldbere-movedeffectivelybyultrafiltrationcartridge．HowevertheremovalefficienciesofCODMnandNH3－Nwereunsatisfactoryinbothsystems．Theeffluentofflotationtankwithhighdissolvedoxygenconcentration·1·31920155CHINAWATEＲ＆WASTEWATEＲVol．31No．9May2015couldprovidefavorableconditionsforaerobicgrowthofbacteriainterceptedintheultrafiltrationcartridge．Inthesystemofup-flowbiofiltercoupledwithultrafiltrationmembranesthebacteriaescapedfrombiofil-tercouldbeeasilyentrappedintheinletsideofthemembraneandtheriskofmicrobeleakingoutfromthefilterwasminimized．Thebiosecurityoftheeffluentwasguaranteed．Thesubmergedultrafiltrationmembranehadadvantageovertheultrafiltrationcartridgeinresistingbiofoulingduringclarificationofthebiofilterdischarge．Althoughrapidsandfiltrationwasnotasefficientasultrafiltrationtechnologyinreduc-ingundissolvedpollutantsitplayedanimportantroleinensuringthesafetyofthefinishedwater．Keywordsultrafiltrationmembraneairflotationup-flowbiofilterparticlenumber、1～3。“”2×104m3/d“++”1。1Fig．1Flowchartofdemonstrationproject20132014、、。。11.1。CODMn3．27～4．68mg/LNH3－N0．85～3．29mg/L12．55～47．15NTUUV2540．69～0．11cm－1348～4220CFU/mL39～126CFU/100mLCaCO386～108mg/LCaCO3128～174mg/LpH7．32～7．684～22℃。1.2HACH－2100PUV254HACHDＲ50000．45μmCODMn、、、＞2μmIBＲVersaCountTM。。1.31.3.11．650．23m。＜25nm45m22m3/h。0．03～0．06MPa30～60min、20～45s、20～45s。。1.3.2PVDF0．02～0．04μm0．8mm1．25mm。168m239L/m2·h。。0．01～0．03MPa·2·319．watergasheat．com9min、1min。24h。22.1、、。100～1000μm、、、、10～100μm4≥20nm。。。5。0．10NTU0．12NTU。CODMn0～9．7%UV254。10．7%。。。2013102014142。30～40NTU0．15NTU15NTU0．07NTU。CODMn8．8%UV25481．2%。2Fig．2Changeofmembraneoperationpressureandpermeateflux、＜5CFU/mL。、。、、。70%0．5mg/L。CODMn＜3mg/LCODMn2．7mg/L。2.260．1～0．3mg/LCODMn2．4mg/L。。＜0．15NTU60%≤0．1NTU0．103NTU＞2μm190CNT/mLCODMn6．0%UV254。·3·．watergasheat．com3190．09NTU80%≤0．1NTU＞2μm157CNT/mL。9．5%。CODMn4．2%～10．6%UV254。69．2%。1000CFU/mL。、1～5CFU/mL。7CFU/mL。10CFU/100mL。。78。。40．01～0．03MPa95%。20131211—201411235kPa50kPa42．9%2．35m3/h1．71m3/h27．2%。。3、。58～10m/h0．7m1．0～1．5mm0．5m0．8～1．2mm。。95%＜0．3NTU0．2NTU。1213876CNT/mL497CNT/mL274CNT/mL1211326CNT/mL1273CNT/mL。＜10μm15．8%＜10μm465CNT/mL1259CNT/mL170．8%＜3μm175．0%。＞10μm14CNT/mL。＜10μm。13．4%～49．4%0．08mg/L3．5×10－3mg/L。CODMn3．0%CODMn2．2mg/L4．9%60．1%。10CFU/mL。。·4·319．watergasheat．com。。4①、、。。②、。。。③。1．J．2014301828－30．2．309J．201430735－38．3．J．201228879－83．4EdzwaldJK．DissolvedairflotationandmeJ．WaterＲes20104472077－2106．5．/J．201430134－37．6．/、J．201329215－10．7HwangBKLeeCHChangIS．MembranebioreactorTMPriseandcharacterizationofbio-cakestructureusingCLSM-imageanalysisJ．JMembrSci2012419/42033－41．8LiangSLiuCSongL．SolublemicrobialproductsinmembranebioreactoroperationBehaviorscharacteristicsandfoulingpotentialJ．WaterＲes200741195－101．1986－。[e-mail]2014－12－10·5·．watergasheat．com319