[](062312019)TheinfluentialfactorsofthepretreatmentofgelatinwastewaterbyusingTiO2membraneandtheireffectLüYongpeng1,ZhaoWei2,XiaoZuoyi3(1.DepartmentofEnvironmentalScience,EastChinaNormalUniversity,Shanghai200062,China;2.ChongqingBureauofEnvironmentalProtection,Chongqing400021,China;3.SchoolofEnergySourcesandEnvironment,InnerMongoliaUniversityofScienceandTechnology,Baotou014010,China)TiO1,2,3(1.,200062;2.,400021;3.,014010)[]TiO2,,,:200nm,0.30~0.35MPa,4.0~5.0m/s,(10min+HNO320min)。,98.2%CODCr70%~75%,,。[];;[]X703.1[]B[]1005-829X(2008)11-0053-03Abstract:ThepretreatmentofgelatinwastewaterhasbeenexaminedbyusingTiO2membraneinagelatincompanyinInnerMongolia.Theinfluentialfactorsofthepretreatmentofgelatinwastewaterbyinorganicceramicmembranehavebeenstudied.Theoptimumconditionsareasfollows:membraneporesizeofinorganicceramicmembraneis200nm,transitmembranepressure(TMP)0.30-0.35MPa,cross-flowvelocity(CV)4.0-5.0m/s,andtheintegratedwashingmode(firstlywashitbyusingcleanwaterfor10min,andthenHNO3for20min).Undertheseoptimumconditions,repetitioustestshavebeenconducted.TheresultsshowthattheremovalratesofCODarebetween70%-75%andremovalratesofoilsareentirelyover98.2%.Thepollutantloadisloweredgreatlyandestablishesafoundationforthefollowingbiologicaltreatment.Keywords:ceramicmembrane;gelatinwastewater;membranecontamination、、、、、、、、、、、,()。,、、〔1~14〕。,,,。TiO2,,,。11.1、、、、、、、TiO2〔4,10〕,0.05~0.5m2,0.05~0.7MPa,50、100、200、500nm,2~7m/s,5~100℃,pH0~14。1。2811200811IndustrialWaterTreatmentVol.28No.11Dec.,2008531.224h,5000m3,320m3/h。(),pH11~13,30~50℃,CODCr3000~5000mg/L。1.3〔15〕。22.1〔1,3,5〕。50、100、200、500nm,0.35MPa、4.5m/s、40℃、pH=12.2,,2。2,,,,,;,4,40min,。500nm,40min,40min200nm;50nm100nm,。,200nm。2.2pHpH,〔1,2〕。200nm,0.35MPa、4.5m/s、40℃,pH,3。3,pH7~8,pH;pH8,。pH11~13,pH。2.3,〔2,4,6〕。50、200nm,0.35MPa、4.5m/s、pH11.9,,4。4,2,。20~50℃,,,,,;50℃,,,,,〔2,5,6〕。(30~50℃)、、,500400300200100020304050607050nm200nm/(L·m-2·h-1)/℃480060040020005010015020050nm100nm200nm500nm/(L·m-2·h-1)/min2440430420410400791113pH/(L·m-2·h-1)3pH2008-11,28(11)154。2.4〔2,6〕。200nm,4.5m/s、40℃、pH12.1,,5。5,0.10~0.35MPa,;0.35MPa,。,,,。,,,,〔2〕。、、、、,0.30~0.35MPa。2.5〔2,5〕。200nm,0.35MPa、40℃、pH12.5,,6。6,1.0~5.0m/s,;5.0m/s,。,,。,,,,,。,,,,〔5〕。,4.0~5.0m/s。2.6,,,〔1~7,11~14〕,,,〔4~6,13,14〕。,(0.35MPa,5.0m/s)200nm,(,),1。4504003503002502000246810/(m·s-1)/(L·m-2·h-1)612%NaOH2%HNO310min+HNO320min10min20min10min20min10min20min/%66.170.271.380.683.291.592.696.71001,,,,。2%HNO32%NaOH,(10min+HNO320min)。2.7(2),98.2%,COD70%~75%,,。(64),:TiO22008-11,28(11)50045040035030025020000.100.200.300.400.50/MPa/(L·m-2·h-1)5554.6AA3,5,RSD6。6,:、,、,,,,。[](1970—),1992,,。:13873356586,E-mail:hzz1965196@sohu.com。[]2008-07-03()6/(μg·L-1)/(μg·L-1)RSD/%1#9.2949.3529.3359.3459.3389.3350.3662#15.69215.62515.67115.74715.71315.6890.8803#26.10826.09226.14626.16726.08226.1190.140 (55)2008-11,28(11)3,,:200nm,0.30~0.35MPa,4.0~5.0m/s,(10min+HNO320min)。,98.2%,COD70%~75%,,。[][1]LerchA,PanglischS,BuchtaP,etal.Directriverwatertreatmentusingcoagulation/ceramicmembranemicrofiltration[J].Desalination,2005,179(1):41-50.[2]AfonsoMD,AlvesAMB,MohsenM.Crossflowmicrofiltrationofmarbleprocessingwastewaters[J].Desalination,2005,149(1):153-162.[3]MasmoudiS,AmarRB,LarbotA,etal.Elaborationofinorganicmicrofiltrationmembraneswithhydroxyapatiteappliedtothetreatmentofwastewaterfromseaproductindustry[J].JournalofMembraneScience,2005,149(1):1-9.[4],,,.[J].,2006,26(6):23-25.[5],,.[J].,2005,31(7):51-53.[6],,.[J].,2004,33(6):568-571.[7],.[J].,2006,26(12):31-33.[8]DivyaS,SinghalPK,HasijaSK.Prevalenceofpathogenicfungiinagelatinfactoryeffluent[J].IndianJournalofEnvironmentalHealth,1990,32(2):148-152.[9],,,.——[J].,2006,22(22):69-71.[10].[J].,2001,21(4):1-3.[11]ShimizuY,OkunoY,UryuK,etal.Filtrationcharacteristicsofhollowfibermicrofiltrationmembranesusedinmembranebioreactorfordomesticwastewatertreatment[J].WaterResearch,1996,30(10):2385-2392.[12]Al-malacMH,AndersonGK.Crossflowmicrofiltrationwithdynamicmembranes[J].WaterResearch,1997,31(8):1969-1979.[13]ZhangG,LiuZ,SongL,etal.One-stepcleaningmethodforfluxrecoveryofanultrafiltrationmembranefouledbybanknoteprintingworkswastewater[J].Desalination,2004,170:271-280.[14]LimAL,BaiR.Membranefoulingandcleaninginmicrofiltrationofactivatedsludgewastewater[J].JournalofMembraneScience,2003,216(1-2):279-290.[15].[M].4.:,2006:210-222.2/℃pH/nm/MPa/(m·s-1)/%COD30~5011~132000.30~0.354.0~5.010min+HNO320min≥98.270~75[](1982—),。:021-62233673,E-mail:yongpenglv@gmail.com。[]2008-07-20()64