不同方式实现短程硝化反硝化生物脱氮工艺的比较

2004,24(5)618~622ChinaEnvironmentalScience1,1,2,2(1.,1500902.,100022)(SBR),,(T=31±0.5)(DO=0.5mg/L)pH(7.8~8.7)3.,,2.,3.(SBR)X703.1A10006923(2004)05061805Comparativestudiesonshortcutnitrification-denitrificationbiologicalnitrogenremovaltechniquerealizedindifferentpattern.GAODa-wen1,PENGYong-zhen1,2,WANGShu-ying2(1.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China2.SchoolofEnvironmentalandEnergyEngineering,BeijingUniversityofTechnology,Beijing100022,China).ChinaEnvironmentalScience,2004,24(5)618~622AbstractThreewaysofcontrollingtemperature(T=31±0.5),DO(DO=0.5mg/L)andpHvalue(pH=7.8~8.7)forrealizingtheshortcutnitrification-denitrificationbiologicalnitrogenremovaltechniqueadoptingsequencingbatchreactor(SBR)withsoybeanwastewaterastreatingobjectwerecompared.Theshortcutnitrification-denitrificationnitrogenremovaltechniquerealizedwithcontrollingDOwasnotasgoodastheothertwotechniquesbymeansofcomparingnitrificationratesandtime,sludgesettlingpropertyandbiofacies.Andsomeproblemsexistedinthetechniquewasexploredintheoryaccordingtoactivesludgereactionkineticsandmicrobebiofacies.Thereexitedsomeproblemsofdifferentdegreeinactualengineeringapplicationofbiologicalnitrogenremovaltechniquerealizedinthesethreeways.Keywordssoybeanwastewatersequencingbatchreactor(SBR)shortcutnitrification-denitrificationbiologicalnitrogenremoval.,,,[13].,pH[47].,.,,,pH3.1SBR,(1).,,700mm,300mm,38L.50mm,;;,,;,,;YSI-50BDO20040203(50138010);(E0230)*,,[e-mail]5619pHS-3CpHDOpH,pHCODNH4+NNO2NNO3NMLSS.Fig.1TheschematicdiagramofexperimentalsystemwithcontrolequipmentinSBRprocess1.2.3.pH4.pH5.DO6.DO7.8.9.10.11.12.13.14.15.,COD10000~15000mg/L,pH3.5~5.0.,,COD700~1400mg/L,COD400~800mg/L,50~65mg/L.(T=31±0.5)(DO=0.5mg/L)pH(7.8~8.7)3,.:31±0.5;()pH(3.5~5.0);28±1;0.5mg/L;pH,pH(3.5~5.0).pH:28±1;(),NaOHpH7.8~8.7.[8].22.13,1.1,1,340min;2,420min;3.,2,,9.85mg/L.1,3,2.,,3,2,3.13Table1ComparisonofnitrificationratesandtimeatthreeprocessesNH4+N(mg/L)NH4+N(mg/L)(min)[mgNH4+N/(gMLSS⋅min)]151.990.693400.0416245.389.854200.0238362.070.003600.0493:123pH31,3.P123456789101112131415P62024pH312.HaltmanpH,[9]:)110(04.01)pHpH(pHN,N''-+=-ìì(1):mNpH,d1;mN,pH′pH,d1;pH′pH(8.0~8.4);pHpH.2.,,,.,20.5mg/L,,,,.2.2.,,.,(SVI),SVI100mL/g,SVI150mL/g.,SVI,.(MLSS)3SVI,SVI,2.2,13SVI50~80mL/g,.2SVI120mL/g,13,.,2,,2.23SVIFig.2VariationofSVIatthreeprocesses2.33,13,;2,,3.3123(20)Fig.3Activatedsludgeofprocess1process2andprocess3(×20)05101520256080100120140160()SVI(mL/g)123a.1b.2c.3562113,,,,,,.,2,0.5mg/L,,,,.2,133,(Nematoda)(Vorticella)(Epistylis),4.413Fig.4Protozoainactivatedsludgeofprocess1and3,,,,.,13,2,2,.,,132.33,2,.13,.1,30~35.,,,.,(30).3,,,pH,.,3,pH.,H+OH,pH.pH,,,,,,,,.,pH,pH,,,pH.,3pH.3.,,,.,,.a.(20)b.(100)c.(20)6222444.1pH,,pH.,,,,.4.23,.,pH.[1]JettenMSM,HornSJ,vanLoosdrechtMCM.Towardsamoresustainablemunicipalwastewatertreatmentsystem[J].Wat.Sci.Tech.,1997,35(9):171180.[2]RuizG,JeisonD,ChamyR.Nitrificationwithhighnitriteaccumulationforthetreatmentofwastewaterwithhighammoniaconcentration[J].Wat.Res.,2003,37(6):13711377.[3],,,.[J].,2000,20(3):207210.[4]HellingaC,SchellenAAJC,MulderJW,etal.TheSHARONprocess:Aninnovativemethodfornitrogenremovalfromammonium-richwastewater[J].Wat.Sci.Tech.,1998,37(9):135142.[5]LaanbroekHJ,GerardsS.Competitionforlimitingamountsofoxygenbetweennitrosomanaseuropaeaandnitrobacteriawinogradskyigrowninmixedcontinuouscultures[J].Arch.Microbiology,1993,159:453459.[6]VillaverdeS,Fdz-PolancoF,GarciaPA.Nitrifyingbiofilmacclimationtofreeammoniainsubmergedbiofilters.Start-upinfluence[J].Wat.Res.,2000,34(2):602610.[7],.pH/[J].,2001,15(4):346350.[8].[M].,1989.246286.[9].[J].,1994,2(3):4449.(1967),,,,,,.20.,.DavidStrausTrevorBrasel:..20045.HarrietAmman:..Amman,...20035,,,.EnvironmentalScience&Technology,August1,282A(2004)