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C/N、。29±1℃DO0.6~0.9mg·L-1DO0.1~2.88mg·L-1pHFApH=8、FA=18mg·L-1MPNAOBNOB600∶1。SBRCOD2.0~3.5kg·m-3·d-10.6~0.8kg·m-3·d-1,COD63%~71%NH+4-N94.9%NO-2-NNAR94.25%。-X713A1672-2043201610-2005-06doi:10.11654/jaes.2016-035512111.2253002.400045FeasibilitystudyonthetreatmentoflowC/Ndigestedanimalmanurewithshortcutnitrification-denitrifica－tionprocessHEQing-ming1,2,LITing-you1,WEIPing-he11.TaizhouUniversity,Taizhou225300,China;2.KeyLaboratoryoftheThreeGorgesReservoirRegion′sEco-Environment,MinistryofEdu－cation,ChongqingUniversity,Chongqing400045,ChinaAbstractTraditionaldigestedanimalmanurehassomeproblemssuchaslowC/Nandpoorbiodegradability,thusshortcutnitrification-denitrificationwassuggestedtodealwiththemanure.OurstudyshowedthatbycontrollingDOconcentrationwithintherangeof0.6~0.9mg·L-1,seedingthereactorwithanaerobicammoniaoxidationgranulatedsludgetoachieveastablenitriteaccumulationunder29±1℃couldrealizepartialnitrification-denitrificationquickly.ThenwekeptDOconcentrationwithintherangeof0.1~2.88mg·L-1underconstantaeration,andthebestnitriteaccumulationandNH+4-NremovalefficiencywasobservedwhenpHat8andFAat18mg·L-1,aconditionmoreconducivetonitritebacteriaforcompetitiveadvantageandlong-termstabilitytoachieveshortcutnitrification-denitrification,throughthecomparisonoffourdifferentgroups.Moreover,thequantitativeratioofammonia-oxidizingbacteriaAOBtonitrite-oxidizingbacteriaNOBwas600∶1.DuringthestabilizedflowoftheanaerobicdigestionfluidintotheSBR,theloadingratesofCODandNH+4-Nwere2.0~3.5kg·m-3·d-1and0.6~0.8kg·m-3·d-1,withtheremovalratesofCODandNH+4-Nfor63%~71%and94.9%,respectively.Andthenitriteaccu－mulationratereachedmorethan94.25%.Keywordsnitrogenremovalnitriteanimalmanurenitrification-denitrification2016－03－18TS20151315KJD610005QD20160031987—。E-mail123heqingming@163.com20163510:2005-2010201610JournalofAgro-EnvironmentScience.[J].,2016,35102005-2010.HEQing-ming,LITing-you,WEIPing-he.FeasibilitystudyonthetreatmentoflowC/Ndigestedanimalmanurewithshortcutnitrification-denitrificationprocess[J].JournalofAgro-EnvironmentScience,2016,3510:2005-2010.3510、、SSC/N、、。。[1]Voets[2]40%、1/44.3[3-6]。Lopez-Palau[7]DO95%Peng[8]58~108mg·L-1392.4%。Ge[9]Frison[10]。Vilar[11]35℃100%。Gabarro[12]、DO20℃。600mg·L-1pHFA[13]。、C/NpH、FApHFA。、C/N。11.11SBRSequencingbatchreactor5.0L3.0L。。NH+4-N、COD、MLSS、NO-2-N、NO-3-NDO、ORPpH。1.2NH+4-N660~900mg·L-1NO-2-N＜0.5mg·L-1NO-3-N＜1mg·L-1pH7.35~7.65COD2000~3500mg·L-1。UASB[14]VSS/SS0.68SVI20~30mL·g-10.75L。MLSS3500~4000mg·L-130±1℃。1.3CODNH+4-NNO-2-NN-1--NO-3-NMLSSMLVSSDOpH。AOBNOB[15-16]。22.1SBR3211089776541.2.3.4.5.pH6.7.8.9.10.。1Figure1Schematicdiagramofanaerobicdigestionexperimentsystem20063212016102101801501209060300NO-2-N/mg·L-105101520253035404550/d1009080706050403020100/%NAR10009008007006005004003002001000NH+4-N/mg·L-105101520253035404550/d1009080706050403020100/%pH7.8~8.4。30±1℃DO0.6~0.9mg·L-1。1∶1750~900mg·L-1。[14]。AOBFASBR8~13mg·L-1NO-2-NNO-2-N[17]。2。SBRNARNAR4.1%91%NAR。3。AOBSBR5d43%3500~4000mg·L-1pH、FANOBAOBNOB[14]。15~20dAOB[18]91%。25~30d94.25%90.25%。pHFA。2.2pH、FAKim[19]pHFA。FApHAnthonisen[20]FA=17×[NH+4-N]×[10pH]14×KbKw+10pHKbNH3-NKwKbKw=exp6344273+T!pHNH+4-NNAR。4pH7.5、8.0、8.5、9.0FA6、18、51、111mg·L-1NAR。4FA。FA。2hNAR32.03%、10.15%、51.71%、58.44%4h73.50%、75.10%、83.75%、88.52%。FA111mg·L-1。FA10mg·L-1AOB[19]44h4c、4d46.92%52.43%4a、4b54.40%70.58%4b4a。2SBRNO-2-NFigure2NO-2-NconcentrationanditsNARinSBR3SBRNH+4-NFigure3NH+4-NconcentrationanditsremovalefficiencyinSBR2007351076543210FA/mg·L-102468apH=7.5/h100806040200NH+4-NNAR/%20181614121086420FA/mg·L-102468bpH=8.0/h100806040200NH+4-NNAR/%706050403020100FA/mg·L-102468cpH=8.5/h100806040200NH+4-NNAR/%120100806040200FA/mg·L-102468dpH=9.0/h100806040200NH+4-NNAR/%8007006005004003002001000/mg·L-15060708090/d1009080706050403020100/%100110120130140150COD4pH、FAFigure4NH+4-NremovalefficiencyandNO-2-NaccumulationrateindifferentpHandFAFA18mg·L-1NOBAOBAOBFA[9]FApHpH8NO-2-N[21]。pH=8、FA=18mg·L-1。2.33500~4000mg·L-129±1℃DO0.1~2.28mg·L-1pH8.0。FA18mg·L-156。5510~800mg·5Figure5OrganicandammonianitrogenremovalinstableoperationFANARNH+4-N2008321201610400350300250200150100500/mg·L-15060708090/d1009080706050403020100NAR/%1001101201301401506NO-x-NNARFigure6NO-x-NinfluentandeffluentconcentrationandNARinstableoperationL-1pH、FA20~100mg·L-1。AOBFA95%30mg·L-197.7%。pHFAAOB、NOBSBRCOD2399~4410mg·L-1COD920~1315mg·L-1COD57.9%~76.12%COD。、[16]。6NO-x-NNAR30mg·L-1。FA90%94.55%SBRMPNAOBNOB[15]1AOBNOB600∶1SBRAOBNOB。31DO、pH、FANO-2-N90%。2pHFApH=8、FA=18mg·L-1NAR94.25%。3MPNAOBNOB600∶1。4SBRNO-2-N91.26%94.55%。[1]VadiveluVM,KellerJ,YuanZ.Effectoffreeammoniaontherespira－tionandgrowthprocessesofanenrichedNitrobacterculture[J].WaterResources,2007,414826-834．[2]VoetsJP,VanstanenH,VerstraeteW.Removalofnitrogenfromhighlynitrogenouswastewater[J].JournalofWaterPollutionControlFedera－tion,1975,472394-398．[3]WangY,PelkonenM,KailaJ.Cost-savingbiologicalnitrogenremovalfromstrongammonialandfillleachate[J].WasteManagement&Re－search,2011,298797-806．[4]GeSJ,WangSY,YangX,etal.DetectionofnitrifiersandevaluationofpartialnitrificationforwastewatertreatmentA