HRT对IC反应器运行性能的影响张燚

20173·50·(15180012518001)[](IC)(HRT)8.6h10h12h14h20hHRTCOD90%HRT10h277L/d162L/d[]IC[]TQ[]A[]1007-1865(2017)03-0050-02EffectofHydraulicRetentionTime(HRT)onPerformanceofICReactorZhangYi1,JinShufang2,ChenLong1,HouMengmeng1,LiGuangde1(1.ShenzhenAcademyofEnvironmentalSciences,Shenzhen5180012.ShenzhenGADEnvironmentalTechnologyCo.,Ltd.,Shenzhen518001,China)Abstract:Asafactorofanaerobicreactionrunningeffect,HydraulicRetentionTime(HRT)of8.6h,10h,12h,14hand20hwereadjustedinordertoimprovetheperformanceofinternalcirculation(IC)reactor.Intheappropriaterange,withtheincreaseofHRT,internalofreactorcanalwaysmaintainedagoodanaerobiccondition.TheremovalrateofChemicalOxygenDemand(COD)showedaincreasingtrendandtheremovalrateofCODkeephigherthan90%.Thegasandthemethaneproductiontendtoreduceafterthepeak,whentheHRTwas10h,boththetotalquantityofbiogasandthemethaneproductioncanachievethemaximumof277L/dand162L/d,andtherunningperformanceofthereactorcangetthebesteffect.Keywords:HRTICreactorgasmethanerunningperformanceICPAQUES2080[1][2][3-5]ICHRTHRT[6-8]ICHRTICHTRIC11.1150L2.4m15cm25cm25L15L10L351.2.3.IC4.5.6.7.8.9.1Fig.1Schematicdiagramofexperimentalset-up1.2COD6700mg/LpHpH1.310L(MLSS)151g/L(MLVSS)49g/L1.4pHWTWpH/oxi340i[9]COD5B-3(D)CODLMF-1GC-2088276d1~21HRT=8.6h22~33HRT=10h34~51HRT=12h52~61HRT=14h62~76HRT=20hICHRTHRTpHCOD33.1HRTHRT2pH2HRTICFig.2EffectofHRTonanaerobicconditions[]2016-12-12[](1989-)2017344341·51·HRTpH7.2(pH6.5~8.0[10])pHHRT10h2000mg/LHRTHRT20h3000mg/L(1000~5000mg/L)3.2HRTCODCOD6700mg/LCODCOD3HRTCODHRT8.6h10hCOD500mg/L610mg/LCOD90%HRTCODHRT20hCOD180mg/LCOD97%3HRTICCODFig.3EffectofHRTonCODremoval3.3HRT4HRTHRTHRT8.6h10h277L/d162L/d59%HRT10hHRTHRT20h90L/d8%HRT10h4(1)HRT20hHRTpH7.22000~3000g/L(2)HRTCODHRT20hCOD97%COD180mg/LCOD90%(3)HRTHRTHRT10h277L/d162L/d59%4HRTICFig.4EffectofHRTongasproductionanditscomponents[1]LettingaGFieldJvanLierJetalAdvancedanaerobicwastewatertreatmentinthenearfutureWatSciTech199735(10)5-12[2](IC)[J]200117(1)26-29[3]IC[J]200834(1)66-68[4]IC[J]200120(3)58-59[5]LettingaetalAdvancedanaerobicwastewatertreatmentinthenearfutureWatSciTech199735(10)5-12[6]ABR[J]200826(3)15-18[7]--[J]()201233(5)34-38[8][J]201032(4)44-47[9]200212-124[10]200734(4)120-122