纯氧曝气AO工艺处理医院污水的工艺特性研究余薇薇

第33卷增刊1土木建筑与环境工程Vol.332011年6月JournalofCivil,Architectural&EnvironmentalEngineeringJun.2011A/O余薇薇,张　智,王　涛(重庆大学三峡库区生态环境教育部重点实验室,重庆400045)　:纯氧曝气在污废水处理中应用领域广泛,在中国多适用于处理较高浓度和水质复杂的难降解工业废水。纯氧曝气与空气曝气相比有其独特的优点,文中着重介绍了纯氧曝气用于医院特殊水质污水的处理效果,研究纯氧曝气有效去除污染物质机理的同时,提出最佳溶解氧为3mg/L供工程参考,并得出纯氧曝气对于医院废水的CODcr去除较氨氮与总氮效率高的结论。:纯氧曝气;废水处理;溶解氧;CODcr:TU992.3　　　　:A　　　　:1674-4764(2011)S1-0009-04:2011-03-15:(1985-),,,,(E-mail)[e-mail]。ThestudyofhospitalwastewatertreatmentbypureoxygenaerationandA/OprocessYUWei-wei,ZHANGZhi,WANGTao(KeyLaboratoryofEco-environmentsinThreeGorgesReservoirRegion,ChongqingUniversity,ChongQing,400045P.R.Chiba)Abstract:Thefieldwhichpureoxygenaerationisappliedtosewagetreatmentisextensive,inactualapplicationitismorefitforthedegradationindustrialsewagewhichishighconcentration.Pureoxygenaerationhaswhoseuniquemeritcomparedwithairaeration,Themainbodyofabookisemphasizedhavingintroducedthepureoxygenaerationculturetohospitalwastewateractivitysludge,antibioticandheavymetaletc.dislodgesmechanismandtothehospitalinwastewater,suggestthatthebestdissolvedoxygenprovidingtheprojectreferenceKeywords:Thepureoxygenaeration;wastewatertreatment;dissolvedoxygen;CODcr　　1986,[1]。80%,、、,。,,[2]。[3],[4]。,[5]。20081.29×106m3/d[6],、、,、、、、,、、,;、。,,、、、。1　1.1　,,No:N0=KLaCs-C　mg/(L·h):Cs,C;KLa,、。dcdtw=KlawβCS-CKLaW=αKLa　　:β,1,。,,。α,。:Cs、、。,,,。1　,。1。1.2　,,。,。,,,,,(2)。a.　　　　b.2　。:,;,;:,,;:,;,Fenton[7-8],;,[9]。,,。,,,、,,,,。,,。,,。2　A/O+,—,,[10-12]。,。,Kh=1.5;4800m3/d,3。3　　　()[13]1。1　CODCr(mg·L-1)BOD5(mg·L-1)SS(mg·L-1)NH3-N(mg·L-1)()300150120403.0×1086020201550080%87%83%62.5%99.9%:BOD5,CODCr,,。,、,,。,,[14]。A/O6:、、、、[15],,,。3h,200%,[16],DO1.0mg/L,2.0mg/L,3.0mg/L,(,1.6～2.52.0mg/L,2.5～3.53.0mg/L),DO,(TP,,),CODCr,NH3-N,TN,。CODCr,NH3-N,TN、、。3　3.1　1)1.0mg/L,CODcr,NH3-N,TN61%,25%,36%;DO,(4)。2)2mg/L,CODCr,NH3-N,TN74%,39%,44%。6,7,82mg/L10土木建筑与环境工程　　　　　　　　　　　　　　　　　　第33卷a.CODb.TNc.NH3-N4　1mg/L,。(5)a.CODb.TNc.NH3-N5　2mg/L3)3mg/L,CODcr,NH3-N,TN73%,50%,55%;6,3mg/L,,NH3-NTN。,。3.2　3,a.CODb.TNc.NH3-N6　3mg/L7　(2-4)。2　(CODcr)QfS20.25020.12518.4F0.05(2,27)=3.350.183270.006F0.01(2,27)=5.49F=18.45.49＊＊0.434293　(TN)QfS20.18720.09310.716F0.05(2,27)=3.350.235270.008F0.01(2,27)=5.49F=10.715.49＊＊0.4222911第33卷增刊1　　　　　　　　　　　　余薇薇,等:纯氧曝气A/O工艺处理医院污水的工艺特性研究4　(NH3-N)QfS20.30620.15317.569F0.05(2,27)=3.350.235270.008F0.01(2,27)=5.49F=17.565.49＊＊0.541292,3,4,CODcr,NH3-N,TN＊＊。,,4,2mg/L,N,,。,。2mg/L,3mg/LCODcr,;,,、,,。:Y=0.305x-0.256,R0.895(8);CODcr:Y=0.255x+0.017,R0.959(9);CODcr,,,CODcr。8　9　CODcr4　　1)、,,,。2)3mg/L,,CODcr,NH3-N,TN73%,50%,55%。3)CODcr,NH3-N,TN。4)CODcr,CODcr。:[1].[M].2003.[2],,.、[J].,2003,19(2).[3]GREGORD.ZUPANCˇIC,MILENKOROS.Aerobicandtwo-stageanaerobicaerobicsludgedigestionwithpureoxygenandairaeration[J].BioresourceTechnology,2008(99):100-109.[4],,.[J].,2009,35(12).[5],,,.[J].,2004,35(4):1-9.[6]QIAOLINGLIU,YUFENZHOU,LINGYUNCHEN.ApplicationofMBRforhospitalwastewatertreatmentinChina[J].Desalination,2010(250):605-608.[7]PUANGRATKAJITVICHYANUKUL,NATTAPOLSUNTRONVIPART.Evaluationofbiodegradabilityandoxidationdegreeofhospitalwastewaterusingphoto-Fentonprocessasthepretreatmentmethod[J].JournalofHazardousMaterials,2006,138:384-391.[8]AJAYKUMARGAUTAMA,SUNILKUMARB,P.C.SABUMONA.Preliminarystudyofphysico-chemicaltreatmentoptionsforHospitalwastewater[J].JournalofEnvironmentalManagement.2007,83:298-306.[9].[J].2002.[10]CERVANTESFJ,DELAROSADA,GóMERZJ.NitrogenremovalfromwastewatersatlowC/Nratioswithammoniumandacetateaselectrondonor.Bioresource[J].Technology,2001,79:165-170.[11]ISAACSSH,HENZEM.Controlledcarbonsourceadditiontoanalternatingnitrification-denitrificationwastewatertreatmentprocessincludingPremoval[J].WaterRes,1995,29(1):77-89.[12]ROCHERM,GOMAG,PILASBEGUEA,LOUVEL,ROLSJL.Towardsareductioninexcesssludgeproductioninactivatedsludgeprocess:biomassphysicochemicaltreatmentandbiodegration.[J].ApplMicrobiolBiotechnol,1999,51:883-890.[13]GB18466-2005[S].:,2005:30-33.[14],,.+[J].,2009,27(6).[15],,.A/O[J].,2005,8(37):1053-1057.[16],,.[J].,2009,25(8).(编辑　周　沫)12土木建筑与环境工程　　　　　　　　　　　　　　　　　　第33卷