低温下两段式MBBR处理城市污水的中试研究

MBBR,,,(,150090):MBBR,HRT,515,HRT7.2h34mg/L12mg/L,COD(GB189182002)A,2(SND),SND;COD/NH+4-N4,:MBBR;;;;:X703.1:C:1000-4602(2008)09-0093-04Pilot2scaleResearchonTreatmentofMunicipalWastewaterbyTwo2stageMBBRatLowTemperatureSHAOShu2hai,CUIChong2wei,ZHANGAi,ZHANGJie(SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Thetwo2stagemovingbedbiofilmreactor(MBBR)wasusedtotreatmunicipalwastewater,andtheenhancedremovalefficiencyoforganicmattersandnitrogenwasinvestigatedbychangingHRTandaerationintensity.TheresultsshowthattheeffluentvaluesofCOD,NH+4-NandTNareequalorclosetothefirstlevelAcriteriaspecifiedinPollutantDischargeStandardforUrbanWastewaterTreatmentPlant(GB18918-2002)atlowtemperaturebetween5and15,HRTof7.2h,DOof3to4mg/Linthefirststageand1to2mg/Linthesecondstagewheresimultaneousnitri2ficationanddenitrification(SND)hasbeenachieved.DOcanactasanonlineparameterforSND.TheeffectofnitrificationcanbeaffectedwhenCOD/NH+4-Nratioislargerthan4becauseofvariationofpredominantmicroorganisms.Keywords:MBBR;municipalwastewater;pilot2scaletest;lowtemperature;nitrogenre2moval,,(SND)[1]MBBR,,,MBBR,MBBR,MBBR,,SND3924920085CHINAWATER&WASTEWATERVol.24No.9May2008111111Fig.1FlowchartofMBBRprocessMBBR,,1.53m3,0.6m1.2m2.1m1.2m1.2m2.1mª20mm20mm,284m2/m3,0.98kg/m3,40%,112CODNH+4-NTNMLSS[2],JPB-607,[3]113[4],,;2006108,30d,,,20m3/d,1520,DO2.53.5mg/L;200611,20072,(1),1DO,2DO12mg/L,,,515,8:3011:3016:00,1Tab.1Parameterofdifferentoperationconditions12345/(m3d-1)20202025151DO/(mgL-1)5634233434/d1920181618/12159137106958221121111(10d)COD60125mg/L,118h,COD,MBBR(26d)COD60mg/L,GB189182002B,COD80%21112(13d),,,6mg/L,85%212MBBR,;MBBR,,,SND[5],SNDDO2mg/L,2DO12mg/L,()21211MBBR2125,COD50mg/L,A;34,CODB13mg/L25m3/d,CODA(70%),20m3/d(HRT=5.4h),25.6gCOD/49249(m2d),8.5gCOD/(m2d),AndreottolaG[6]MBBR[7.9gCOD/(m2d)],2MBBRCODFig.2CODremovaleffectintwo2stageMBBR,90%85%[7],,COD,21212MBBR33MBBRFig.3Removaleffectofammonianitrogenintwo2stageMBBR1235,A;48mg/L,A,25m3/d,1.2gNH+4-N/(m2d),1.4gNH+4-N/(m2d),AndreottolaG[6]MBBR[0.9gNH+4-N/(m2d)],,[89]21213125,170%,40%;220%,50%,1,2[10],1,;2,2,1COD/NH+4-N3.8,34.1,,,COD/NH+4-N4Esoy[11]21214445TN4MBBRTNFig.4TNremovaleffectintwo2stageMBBR4,5TNA1TN,13.1%20.5%;232.9%44.2%CODTNTP=10051,1TN12.5%19.4%,2TN0.6%0.5%,1,259:MBBR249,1.76gTN/(m2d),TNA[12]3,MBBRCODGB189182002B515HRT7.2h34mg/L12mg/L,CODACOD/NH+4-N4,22mg/L,,SND,:[1],,,.DOMBBR[J].(),2006,34(4):514-517.[2].(4)[M].:,2002.[3],,.[J].,1999,32(6):39-43.[4],,,.[J].,2005,24(4):92-96.[5]HolmanJB,WarehamDG.COD,ammoniaanddis2solvedoxygentimeprofilesinthesimultaneousnitrifica2tiondenitrificationprocess[J].BiochemEng,2005,22(1):125-133.[6]AndreottolaG,FoladoriP,RagazziM.Upgradingofasmallwastewatertreatmentplantinacoldclimateregionusingamovingbedbiofilmreactor(MBBR)system[J].WaterSciTechnol,2000,41(1):177-185.[7],.MBBR[J].,2006,5(1):54-56.[8]RustenB,HemL,ªdegardH.Nitrificationofmunicipalwastewaterinmoving2bedbiofilmreactors[J].WaterEnvironRes,1995,67(1):75-78.[9]RustenB,HemL,ªdegardH.Nitrogenremovalfromdi2lutewastewaterincoldclimateusingmovingbedreactors[J].WaterEnvironRes,1995,67(1):65-74.[10].(4)[M].:,2002.[11]EsoyA,ªdegardH,BentzenG.Effectofsulfideandor2ganicmatteronthenitrificationactivityinabiofilmprocess[J].WaterSciTechnol,1998,37(1):115-122.[12]PriyaliSen,StevenKDentel.Simultaneousnitrification2denitrificationinafluidizedbedreactor[J].WaterSciTechnol,1998,38(1):247-254.:[phone]E-mail:[e-mail]:2007-12-14(92);1%CaCl22.0mL/100mL;pH7.08.0,COD20%,96%,,:[1].[J].,2002,25(1):43-45.[2],,.[J].,2005,28(1):12-15.[3],,.[J].,2005,21(12):56-58.[4].[M].:,1978.[5],.[M].:,2000.:[phone]E-mail:[e-mail]:2007-12-2069249