ABR反应器的碱度变化及调控研究苏德林

ABR1,2＊,2,1(1.,　150090;2.,　100084):(ABR)ABRVFA、pHCOD.,VFA,pHVFA.pH.ABRpH.ABRpH6.0,6.5..COD[3.7kg/(m3·d)],ABR800mg/L.:;;COD;:X703.1　:A　:0250-3301(2006)10-2024-04:2005-08-20;:2005-10-30:(59978020):(1963～),,,,.＊,E-mail:[e-mail]ndItsRegulationofABRSUDe_lin1,WANGJian_long2,HUANGYong_heng2,ZHOUDing1(1.DepartmentofEnvironmentalScienceandEngineering,HarbinInstituteofTechnology,Harbin150090,China;2.LaboratoryofEnvironmentalTechnology,INET,TsinghuaUniversity,Beijing100084,China)Abstract:VariationofalkalinityanditsrelationshipwiththepH,volatilefattyacid(VFA)andCODalongwiththedifferentcompartmentsoftheABRwereinvestigated.TheexperimentalresultsshowedthattherewasacloserelationshipbetweenvariationofalkalinityandVFAconcentrationalongwiththeABRcompartments.ThelowestpointofalkalinityandpHvalueoccurredwhereVFAconcentrationreachedmaximum.TheeffectofalkalinityontheoperationalperformancewasthroughchangingpHvalue.ThevariationtrendofalkalinityandpHalongwithdifferentcompartmentswasdecreasedfirstlyandthenincreased.ThealkalinityshouldbecontrolledtoguaranteethelowestpHnolessthan6.0.Thelowestalkalinityshouldbenolessthan800mg/Lwhentheloadingrate(COD)wasabout3.7kg/(m3·d).Keywords:anaerobicbaffledreactor;alkalinity;COD;operationalperformance　　(anaerobicbaffledreactor,ABR),:,,(USB),.,,[1～9].pH,pH,pH8.06.3,.,pH.pH,:RCOO-、NH3、CO2、H2S、HCO-3、H2O,“”(volatileacidalkalinity).,pH,pH5.0[10,11].,,,,.ABRpH、CODVFA.1　1.1　,、H2NCONH2K2HPO4,COD∶N∶P=200∶5∶1.,NaHCO3.,、.1.2　UASB2710200610　　　　　　ENVIRONMENTALSCIENCEVol.27,No.10Oct.,2006DOI:10.13227/j.hjkx.2006.10.018,,.VSS/SS=0.45,7.5L,12cm.1.3　ABR,518mm×160mm×300mm,16.2L,5,3∶1,30℃.,35℃±1℃,,1.1　Fig.1　Schematicdiagramoftheexperimentalset-up1.4　COD,(),CaCO3;pHpH;(SS)(VSS)[12].2　2.1　pHABRpH.,,ABRpH.1200mg/L,COD2400mg/L,pH2.[2,13],1(VFA),,pH.,2VFA.VFA,,:4HCOOHCH4+3CO2+2H2O(1)CH3COO-+H2OCH4+HCO-3(2)　　,,.2,COD,,COD,.2　、pHCODFig.2　Variationofalkalinity,pHandCODduringtheoperation,pH,.1,,.pH,.,,pH.COD10000mg/L,HRT=16h,COD15kg/(m3·d),、CODpH2.,2,pH3.2.2　COD,COD3.,COD.2.3　VFApH,ABRVFApH4.,VFA,pHVFA202510　　　　　　3　CODFig.3　RelationshipofalkalinityrecoveryandCODremoval4　VFApHFig.4　VariationofVFA,alkalinityandpH.pH,,pH,;,pH,pH,.pH(RCOO-)CO2HCO-3CO2-3.,pH.,,pH.VFA,pH.2.4　CODABR,COD..COD2500mg/L,HRT=16h,1370mg/L.,COD,95%.,COD,5.5　CODFig.5　EffectofinfluentalkalinityonCODremoval,1370mg/L990mg/L,COD,pH.800mg/L,COD.,pH6.45,6.5.610mg/L,COD,93.7%81.7%,pH5.9.,pH6.5ABR.UASB[14],,,pH,,35℃750mg/L,.,UASB、pH.ABR,ABR.2.5　16.,100～200mg/L.,,pH,2026　　　　　　27　　　1　Table1　Parametersvariationduringthealkalinitycontrolexperiment/mg·L-1/mg·L-1pHpHCOD/%137015607.06.396.9118013006.656.095.999011406.65.897.28009106.455.693.76107505.95.081.76　pHFig.6　RelationshipofinfluentalkalinityandpHvariation.,,CO2HCO-3.,UASB,,.ABR,,.,,ABR,.ABR,.,ABR,ABR.,.,ABR,ABR.3　(1)ABR,pH.pH,.,pH.(2)VFA,pHVFA.pH.(3)ABRpH6.0,6.5..COD[3.7kg/(m3·d)],ABR800mg/L.:[1]BachmannA,BeardVL,McCartyPL.Performancecharacteristicsoftheanaerobicbaffledreactor[J].Wat.Res.,1985,19(1):99～106.[2]WangJianlong,HuangYongheng.PerformanceandCharacteristicsofananaerobicbaffledreactor[J].BioresourceTechnology,2004,93(3):205～208.[3].[M].:,2002.165～171.[4],,..,1999,15(7):18～20.[5]BoopathyR.BiologicalTreatmentofSwineWasteUsingAnaerobicBaffledReactors[J].BioresourceTechnology,1998,64(1):1～6.[6],,.(ABR)[J].,2000,6(5):379～381.[7],.(ABR)[J].(),2005,45(9):1294～1296.[8],,,.ABR[J].,2003,23(5):575～581.[9].[J].,2003,16(2):9～17.[10].[D].:,1990.[11],[D],:,1987.[12].[M].().:,1997.233～237.[13].[D].:,1999.[14].UASB[D].:,1989.202710