MBBRHRTpH1,2,1,2,1(1.,110004;2.,110034)[],MBBR,HRTpH。,,、,NH4+-NCODHRT,NO2--NHRT,HRT8hNO2--N;pH510,COD,NH4+-NNO2--NpH,pH8~9NH4+-N,NO2--N。[];;pH;[]X703[]A[]1005-829X(2016)10-0020-04Influencesofhydraulicretentiontime(HRT)andpHonshortcutnitrificationanddenitrificationinthemovingbedbiofilmreactor(MBBR)LiNa1,2,HuXiaomin1,LiGuode2,JiangBinhui1(1.SchoolofResourcesandCivilEngineering,NortheasternUniversity,Shenyang110004,China;2.ExperimentalCenterofShenyangNormalUniversity,Shenyang110034,China)Abstract:Inordertodevelopaneconomicalandefficientbiologicalnitrogenremovingprocess,theresearchonshor-tcutnitrificationanddenitrificationhasbeenconductedinMBBR,andtheinfluencesofHRTandpHonshortcutnitrificationanddenitrificationhavebeeninvestigated.Theresultsshowthatintheprocessofshortcutnitrificationanddenitrification,underthefollowingconditions:atroomtemperatureandwithoutdissolvedoxygencontrol,there-movingratesofNH4+-NandCODincreasewiththelengtheningofHRT,andeffluentNO2--NincreasesfirstandthendecreaseswiththelengtheningofHRT.TheeffluentNO2--Nisthehighest,whenHRTis8h.TheCODremovingratedoesnotchangemuch,whenpHincreasesfrom5to10.TheremovingrateofNH4+-NandeffluentNO2--Nin-creasefirstandthendecreasewiththeincreaseofpH.ThetreatmenteffectonNH4+-NisthebestandeffluentNO2--Nisthehighest,whenpHis8-9.Keywords:movingbedbiofilmreactor(MBBR);hydraulicretentiontime(HRT);pH;shortcutnitrificationanddenitrification,,,〔1-5〕。,,,,〔6-8〕。,,,25%,,〔9-11〕。,〔12-13〕。(movingbedbiofilmreac-tor,MBBR)、、〔14-15〕,MBBR,MBBRHRTpH。11.11。[]———(2013ZX07202-010);(L2014437);(F15-199-1-21);(2015)3610201610IndustrialWaterTreatmentVol.36No.10Oct.,2016201,。,,,。5cm,。,,MBBR。pH,,pH。1.2COD———;NH4+-N———;NO2--N———N-(1-)-;NO3--N———;MLSS、MLVSS———;pH———。1.3,NH4Cl。NH4+-N45~60mg/L,COD300~550mg/L。NaHCO3(400mg/L)、CaCl2(4mg/L)、MgSO4·7H2O(40mg/L)、KH2PO4(40mg/L)(0.6mL/L)。:FeCl3(375mg/L)、H3BO3(37.5mg/L)、CuSO4·5H2O(7.5mg/L)、KI(45mg/L)、MnSO4·H2O(25.69mg/L)、ZnSO4·7H2O(30mg/L)、EDTA(2500mg/L)、CoCl2·6H2O(50mg/L)、Na2MoO4·2H2O(20mg/L)。pH7.2。22.1,50%。,,。20d,,COD85%,NH4+-N65%,。,,。2.2HRT2.2.1HRTpH7.2,HRTNH4+-N、NO2--N、NO3--N,2。2HRTNH4+-N、NO2--N、NO3--N2,NH4+-NHRT,HRT8h,NH4+-NHRT6h82.16%96.69%;HRT10h,NH4+-N98.23%,HRT8h10hNH4+-N。NO2--NHRT,HRT8h,NO2--N,19.68mg/L,75.15%;HRT10h,NO2--N,16.33mg/L,69.53%。NO3--NHRT,HRT4h10h,NO3--N2.62mg/L6.26mg/L。,HRT。HRT,NH4+-N,NO2--N,HRT。NH4+-N,HRT,NO2--N,NH4+-N,HRTNO2--NNO3--N。2016-10,36(10),:MBBRHRTpH212.2.2HRTpH7.2,HRTCOD,3。3HRTCOD3,CODHRT,HRT4h,COD63.89%,COD150.12mg/L;HRT6h,COD75.59%,COD104.42mg/L;HRT8h,COD88.3%,COD55.31mg/L;HRT10h,COD92.03%,COD36.79mg/L。HRT8h10hCOD《》(GB18918—2002)BA,。MBBR,HRT,CODHRT。2.3pH2.3.1pHHRT8h,pHNH4+-N、NO2--N、NO3--N,4。4pHNH4+-N、NO2--N、NO3--N4,pH59,NH4+-NpH,pH8~9NH4+-N,0.1mg/L,NH4+-N97.68%;pH9~10,NH4+-N,11.82mg/L,NH4+-N76.22%。NO2--NpH,pH8~9NO2--N,19.6mg/L,pH9~10,NO2--N3.62mg/L。,,pH,,,pH,。pH8~9,NH4+-N,pH,。pH5~6,,pH9~10,。2.3.2pHHRT8h,pHCOD,5。5pHCOD5,pH,COD,,MBBR,pH,pHCOD83%,COD100mg/L,《》(GB18918—2002)。2.4MBBR,,,。2016-10,36(10)222.5,HRTpH,MBBRSEM,6。HRT8hpH8~96SEM6,,HRT8hpH8~9,,。3(1)HRT,NH4+-NHRT,NH4+-NHRT8h10h,96.69%98.23%。NO2--NHRT,HRT8hNO2--N,19.68mg/L;HRT10hNO2--N,16.33mg/L。CODHRT,HRT8h10hCOD《》(GB18918—2002)BA。(2)pH,pH59,NH4+-NpH,pH8~9NH4+-N,NH4+-N97.68%;pH9~10,NH4+-N76.22%。NO2--NpH,pH8~9NO2--N,19.6mg/L;pH9~10,NO2--N3.62mg/L。pH,COD,,pHCOD83%,COD100mg/L,《》(GB18918—2002)。(3),,;SEM,,HRT8hpH8~9,。[1]LuJian,JinQiang,HeYiliang,etal.SimultaneousremovalofphenolandammoniumusingSerratiasp.LJ-1capableofheterotrophicnitri-fication-aerobicdenitrification[J].WaterAir&SoilPollution,2014,225(9):1-10.[2]GaneshR,SousbieP,TorrijosM,etal.Nitrificationanddenitrifica-tioncharacteristicsinasequencingbatchreactortreatingtannerywastewater[J].CleanTechnologies&EnvironmentalPolicy,2014,17(3):735-745.[3]HossainF,ChangNB,WanielistaM,etal.Nitrificationanddenitri-ficationinapassiveon-sitewastewatertreatmentsystemwitharecir-culationfiltrationtank[J].WaterQualityExposure&Health,2010,2(1):31-46.[4]ZhangLiqiu,WeiChaohai,ZhangKefang,etal.Effectsoftempera-tureonsimultaneousnitrificationanddenitrificationvianitriteinasequencingbatchbiofilmreactor[J].Bioprocess&BiosystemsEngi-neering,2009,32(2):175-182.[5]WangFeng,LiuYi,WangJinghan,etal.Influenceofgrowthmanneronnitrifyingbacterialcommunitiesandnitrificationkineticsinthreelab-scalebioreactors[J].JournalofIndustrialMicrobiology,2012,39(4):595-604.[6].[J].,2015,42(13):119-120.[7],.[J].,2015(3):55-58.[8],,.-[J].:,2007,25(3):376-380.[9],,,.[J].,2013,29(11):1-5.[10]LiXiaoming,XiaoYang,LiaoDexiang,etal.Granulationofsimul-taneouspartialnitrificationandanammoxbiomassinonesingleSBRsystem[J].AppliedBiochemistry&Biotechnology,2011,163(8):1053-1065.[11],,,.[J].,2015,38(1):80-84.[12]WangXiaolian,MaYong,PengYongzhen,etal.Short-cutnitrifica-tionofdomesticwastewaterinapilot-scaleA/Onitrogenremovalplant[J].Bioprocess&BiosystemsEngineering,2007,30(2):91-97.[13],,,.[J].,2015,35(7):2014-2020.[14],,,.MBBR[J].,2015(6):42-44.[15],,,.—[J].,2015,37(6):24-28.———————————[](1981—),,。E-mail:lina218@126.com。[]2016-08-11()2016-10,36(10),:MBBRHRTpH23