UF耦合两相厌氧工艺处理茶多酚废水李祝

2008271CHEMICALINDUSTRYANDENGINEERINGPROGRESS·83·UF121,3314300682430068343007050nm0.2MPaCOD37.3%SS87.8%COD5%7%0.1m3/kg(COD)PHRT2/HRT1COD15.0%PO4371.5mg/LHRT2/HRT134COD83.5%0.46m3/kg(COD)X703A10006613200801008304Two-phaseanaerobicprocesscoupledwithultrafiltrationfortreatingteapolyphenolswastewaterLIZhu1WANDuanji2PIKewu1,3GONGWenqi3(1SchoolofChemicalandEnvironmentalEngineeringHubeiUniversityofTechnologyWuhan430068HubeiChina2MembraneTechnologyandCleanerProductionCenterofHubeiprovinceWuhan430068HubeiChina3SchoolofResourcesandEnvironmentalEngineeringWuhanUniversityofTechnologyWuhan430070HubeiChina)AbstractUltrafiltration(UF)membranemodulewithmembraneporesizeof50nmwasusedaspretreatmentforatwo-phaseanaerobicprocessinordertoimprovethebio-treatingperformanceofhighconcentrationorganicwastewatercontainingpolyphenols.TheresultsshowedthattheCODremovalratewas37.3%andSSremovalratewas87.8%undertheoperatingpressureof0.2MPawhenwastewaterwaspretreatedbytheUFmembrane.TheeffectsofinletratiophosphorousconcentrationandtheratioofHRT2/HRT1(hydraulicretentiontime)onCODremovalrateandmethaneoutputwerealsodiscussed.ThebestresultsforthetreatmentofwastewatercontainingpolyphenolswereCODremovalrateof83.5%animprovementof5%7%andmethaneoutputofanaerobicreactorof0.46m3/kg(COD)animprovementof0.10m3/kg(COD)wheninletratiowas15.0%phosphorousconcentrationwas71.5mg/LandtheratioofHRT2/HRT1was34.Keywordswastewatertreatment;teapolyphenols;membraneseparation;ultrafiltration(UF);two-phaseanaerobicprocess1525g/L[1]COD50g/[e-mail]:10.16085/j.issn.1000-6613.2008.01.024200827·84·UASB[23][45][6][78][8][9][10]11.14565COD36924.6mg/LpH5.2SS12351.5mg/L1.2150nmUFR1R112.0LpH4.55.2R1R2R250.0LpH6.87.2R1R2HRT35±11/1.3Orion828pHCODSSUFPHRT1HRT2HRT1/HRT2CODCOD22.1UFCOD2050nm250nmCOD110.2MPa24020016012080400/min11.522.53/m3·m2·h10.05MPa0.2MPa0.1MPa0.4MPa21CODSS/MPaCOD/mg·L1COD/%SS/mg·L1SS/%0.0514235.661.4125.899.30.115247.958.7137.499.20.216087.556.4169.199.10.423152.737.32234.387.8COD36924.6mg/LSS18351.5mg/L1UF·85·0.2MPa10.2MPaUFCOD0.4MPaCOD37.3%SS87.8%SSCOD50nm0.4MPaSS2.2COD10.0%20.0%COD1.63.21kg/(m3·d)153122COD/%COD/kg·m3·d1COD/mg·L1COD/mg·L1COD/%/m3·(kgCOD)1101.616087.53716.276.90.39121.916087.53886.275.80.38152.416087.53928.475.60.38172.716087.55405.466.40.35203.216087.56241.961.20.322COD1.63.2kg/(m3·d)10.0%20.0%COD61.2%76.9%0.320.39m3/kg(COD)COD15.0%7.0%12.0%30%2.3COD285.6mg/LPO4313.5mg/LKH2PO412.0%33COD85mg/L1301109070503010/mg·L17075808590COD/%0.40.30.5/m3·(kgCOD)1COD/%3COD71.5mg/LCOD5.0%0.09m3/kg(COD)85mg/LCODPO4371.5mg/L2.4HRT2/HRT1CODpHpH[5]R1R2HRT1HRT2COD1.9kg/(m3·d)85mg/LR1R2R1R2HRT1HRT2HRT2/HRT1CODHRT1+HRT2=24h8765321HRT2/HRT17075808590COD/%0.40.30.5/m3·(kgCOD)1COD44HRT2/HRT1COD4CODHRT2/HRT1COD2.0HRT2/HRT14.0CODHRT2/200827·86·HRT14.0CODHRT1COD4HRT2/HRT13421UF2UFCODHRT2/HRT1COD8COD58765321/60900.30/m3·(kgCOD)140.400.500.450.357080COD/%5UF□COD■COD▲550nmCODCOD5%7%0.1m3/kg(COD)VFA350nmUFCOD5%7%0.1m3/kg(COD)HRT2/HRT1COD15.0%PO4371.5mg/LHRT2/HRT134COD83.5%0.46m3/kg(COD)[1].[J].199814(2)235-239.[2].[J].200324489-93.[3]LaraJBealDRajRaman.Sequentialtwo–stageanaerobictreatmentofconfectionerywastewater[J].J.Agric.Engin.Res.200076211-217.[4]NuriazabarPepiursilloRichardESpeece.Effectofprocessconfigurationandsubstratecomplexityontheperformanceofanaerobicprocesses[J].Wat.Res.200135(4)817-829.[5]ShiHSHanSKSongYCetal.PerformanceofUSABreactortreatingleachatefromacidogenicfermenterinthetwo-phaseanaerobicdigestionoffoodwaste[J].Wat.Res.200135(14)3441-3447.[6].[J].200525116-21.[7].[J].1994318-23.[8]./UASB[J].2006273483-487.[9]TanakaNaoyaHvitved-JacobsenThorkild.Transformationofwastewaterorganicmatterinsewersunderchangingaerobic/anaerobicconditions[J].WaterScienceandTechnology199837105-113.[10].MFUF[J].200319613-15.