低碳氮比规模化养猪场废水处理改造工程实例

。700014。、、、“”、、。。UASB+2A/O++。1800t/d、COD/ρ(TN)1～2。COD800～1500mg/LNH4+-N、TP700～800、30～40mg/L。GB8978－1996[1]。2UASBB/CUASBO。700t/d8hCOD250～300mg/LNH4+-N、TP20～50、0.5～2mg/LCODNH4+-NTP。、224001NH4+-NUASB+2A/O++。+GB8978－1996。COD≤100mg/LNH4+-N、TP≤15、≤0.5mg/LGB8978－1996。、、。2A/OX703.1B1000-3770(2018)[e-mail]@qq.com4412201812Vol.44No.12Dec.,2018DOI:10.16796/j.cnki.1000-3770.2018.12.029134+COD。、、。3、、、。NH4+-NO2A/OCODFenton+CODFentonNH4+-NNH4+-N。1。。UASBB/C。UASB22A/O。2A/O。2A/O。pH3～4。。NH4+-N。44.12A/O2A/O。O2A/O111COD122COD2。2A/O60m×18m×4.5m6m×18m10。16A2P=2.2W44qV=50m3/hH=8m228O13000。91200m3。ORP222。4.29m×9m×5m。D=9m12qV=35m3/hH=8m11。SS。11。4.3COD2A/O1Fig.1Schematicdiagramofreconstructivetreatmentprocess135。CODP[2]。7m×14m×5m。。。。15m315m312m3pH1。4.4。9m×9m×5m。217r/min0.75kW/D=9m12qV=15m3/h、H=60m1115m3pH1。4.5NH4+-N20～50mg/LNH4+-NNH4+-NNH4+-N。NH4+-N、、、。NH4+-NNH4+-N。NH4+-N0NH4+-NNH4+-N[3]。9m×9m×5m。215m3。5GB8978－1996。11－12。1UASB+2A/O++。、、。2/t40kW1/t0.7/t100.4/t。4.1/t。6NH4+-N、UASB+2A/O++O2A/ONH4+-NCODNH4+-N。、GB8978－19964.1/t。[1]:GB8978－1996[S].[2],.[J].,2013,36(2):41-45.[3],,.[J].,2008,34(8):63-65.12345678910111214661385146215541226138914501608154814491350155742393533232835333940384469075570873279882082184973574470872612.010.38.55.62.41.83.53.24.67.86.7142533383748404649504430350.30.40.40.30.20.20.10.30.20.30.30.4ρ(NH4+-N)/(mg·L-1)ρ(TP)/(mg·L-1)1Tab.1TreatmenteffectaftertransformationCOD/(mg·L-1)1404412136AProjectCaseofReconstructionofLarge-scalePiggeryWastewaterwithLowCarbonNitrogenRatioTreatmentProjectYANGFeng,LIUJunjun,ZHAOXuanying,WANGWenwen,WANGJun,TANGWeijie(JiangsuNanda-HuaxingScienceandTechnologyofEnvironmentalProtectionCo.,Ltd,Yancheng224001,China)Abstract:Aimedatthecharacteristicsofpiggerywastewater,suchashighcontentofNH4+-Nandlowcarbonnitrogenratio,acombinedprocessofUASB+twostageA/O+fentonoxidation+breakpointchlorinationwasusedforthewastewatertreatmentprojectreconstruction.Theoriginaltreatmentprocessofanaerobic+aerobicwasdifficulttoremovetheorganicsubstancesinwastewaterandtheremovaleffectsofnitrogenandphosphoruswaspoor,resultingintheeffluentcouldnotmeetthedischargestandardsofGB8978－1996.Thepracticaloperationresultsshowedthat,thesystemoperatedsteadily,theCOD,massconcentrationofNH4+-NandTPineffluentwaslessthan100mg/L,15mg/Land0.5mg/Lrespectively,whichreachedthefirstdischargestandardofGB8978－1996.Afterthereconstruction,thecombinedprocesswithhightreatmentefficiencyandlowoperationenergyconsumptionmakesfulluseoftheoriginalfacilitiesandismatureandreliable,whichcaninsurevariousindexesofeffluentstableuptothestandard.Keywords:piggerywastewater;highammonia-nitrogencontent;lowC/Nratio;twostageA/O;breakpointchlorination.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!“Tetraamminezinccomplexintegratedinterpenetratingpolymernetworknanocompositemembraneforphosphorousrecovery”AIChEJournalDOI:10.1002/aic.16463。、、。JournalofMaterialsChemistryA,2017,5,583592JournalofMembraneScience,2017,524,174-1852。/、。85%15%。ApplicationofImprovedA2/OProcessforUpgradingandReconstructionofUrbanWastewaterTreatmentPlantLIUJiaqiang1,LIAng1,LIYing1,ZHANGLinjun1,WEIBangsen2(1.SchoolofEnvironmentalEngineering,XuzhouInstituteofTechnology,221111;2.XuzhouMunicipalDesignandResearchInstituteCo.,Ltd,221002:Xuzhou,China)Abstract:AimedattheeffluentqualitycouldhardlymeetthefirstclassAdischargestandardofGB18918－2002byA2/Oprocesstreatmentwith20000m3/dtreatmentcapacityinawastewatertreatmentplant.A2/Oprocesswastransformedintothestepfeedpluspre-hypoxia-anaerobic-anoxic-aerobicprocess(modifiedA2/Oprocess)andadditionalclothmediafilterandUVdisinfectionfacility.Theoperationresultsafterupgradingandreconstructionshowedthat,effluentCOD,BOD5andmassconcentrationofSS,NH3-N,TPandTNwas28.3,7.8,8.2,3.9,0.42and13.2mg/Lrespectively,theeffluentqualitymetthefirstclassAcriteriaandtheunittotalcostincreasedonly0.354yuan/tofwater.Keywords:upgradingandreconstruction;thestepfeedplus;advancedtreatment[1]:DB32/180－1998[S].[2]:GB18918－2002[S].[3].A2/O[D].:,2007.[4],.A2/O[M].:,2009.[5],,,.[J].,2017,35(5):126-128.[6].[J].,2018,37(4):101-105.[7],,,.[J].,2009,(7):1223-1227.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1364412140