多级接触氧化工艺处理汽车涂装废水工程实例朱玉芳

[1]。[2]。。。、、。、GB8978－1996COD、NH4+-N、TNDB21/1627－2008[3-4]。DB21/1627－2008。1350m3/d425m3/d107m3/d、105m3/d、112m3/d。1。GB8978－1996DB21/1627－2008。480m3/d。pH6.5～7.5COD0.8～1.5g/LBOD5140～190mg/LNH4+-N、TN、TP、SS、Ni、Zn8～12、25～35、0.5～4、140～160、Zn100.50.50.10.50.097.011～138～98～104～63～44～66～7205015100080105200015090070700504001Tab.1DischargesituationofwastewaterinpaintshopCOD/(g·L-1)pHSSρ/(mg·L-1)Ni10.550202004015025111MICHAELGroetzbach2321.1100042.1101433.110032。COD200mg/LDB21/1627－2008。480m3/d1.96/t。。X734.2B1000-3770(2018)05-0135-0052018-01-2251608099216770301987－、[e-mail]@mail.neu.edu.cn44520185Vol.44No.5May,2018DOI:10.16796/j.cnki.1000-3770.2018.05.0291350.4～0.6、0.3～0.4mg/LCOD。COD。22.1COD1140m2。2。3。4。、、。5。2.2、。、、、、[5-6]。1“”“”。120m2480m3/d2016。。。。。。。COD。3、、、、、、、。3.12。3.1.1。。。。。1.5m0.5m。COD11Fig.1Technologicalprocessofpaintingwastewatertreatmentafterupgrading10×3×3.56.8×5.588×3.53.5×3.5×3.52×1.75×3.52×1.75×3.596122391111105133.3431212111112Tab.2Technicalspecificationofbiologicalprocesstanks/m/m3/m3/445136/3Tab.3MainauxiliaryequipmentandinstrumentationCODpH①11。16.7m3/h10m16.7m3/h10m10m3/h10m10m3/h10mSSR-15013.5m3/min49kPaSSR-500.9m3/min39.2kPa,5m3/h,15mCODmax2①2①112①11115218211、、、、COD3g/L。3.1.262。。。。。。21111。。。。3.1.3。。SS150mg/L。3.1.4。。211COD2g/L。COD。3.1.5。。2m。3.2、、COD、3。44.12Fig.2Internalstructureofbiologicaltank137。6g/L。40m3、40m3、40m3。3。3。MLSS600mg/L。4410d4。DO2～4mg/LpH7～820～30℃。4.2。3～6201751－1515d。3～6。4.3TP35mg/LTP89.7%～98.6%。TP0.5～4mg/LTP0.8～3.1mg/LTPTP。TP212TP[7]。3CODBOD5Fig.3CODandBOD5contentininfluentandeffluentofthesystem02468101214160.00.20.40.60.81.01.21.41.604080120160200240BOD/(gL)COD/(gL)
t/d4TNNH4+-NFig.4TNandNH4+-Ncontentininfluentandeffluentofthesystemρ/(mg·L-1)024681012141605101520253035t/d
5SSTPFig.5SSandTPcontentininfluentandeffluentofthesystem024681012141603060901201501800.00.51.01.52.02.53.03.5
t/dρ(SS)ρ(TP)ρ(SS)/(mg·L-1)ρ(TP)/(mg·L-1)6NiZnFig.6NiandZncontentininfluentandeffluentofthesystemρ/(mg·L-1)02468101214160.00.10.20.30.40.50.6t/d
/(m3·d-1)601202403604Tab.4Loadstartupprocessofmultilevelcontactoxidationsystem445138EngineeringProjectofAutomobilePaintingWastewaterTreatmentbyMultistageContactOxidationProcessZHUYufang1,LVLiting1,ZHUTong1,MICHAELGroetzbach2,MAYongguang3,HANHui2(1.SchoolofMechanicalEngineering&Automation,NortheasternUniversity,110004;2.BMWBrillianceAutomotiveLtd.,110143;3.LiaoningProvincialMachineryResearchInstituteCo.,Ltd,110032:Shenyang,China)Abstract:Accordingtothecharacteristicsofautomobilepaintingwastewaterandtheproblemsoftreatmentprocess,amultistagecontactoxidationsystemwasusedtoupgradetheprimaryphysicochemicaltreatmentprocessinordertofurtherreducetheorganicpollutantscontentofpaintingwastewater.Theresultsshowedthat,theCODcouldmaintainedatbelow200mg/Linfinaleffluent,thewaterqualityindexreachedthedischargerequirementofDB21/1627－2008.Thewastewatertreatmentcapacityoftotalmultistagecontactoxidationsystemwas480m3/d,andtheaveragetreatmentcostwas1.96￥/t.Thesuccessfulengineeringapplicationandexperienceofthisprojectprovideareferenceforthewastewatertreatmentinrelevantindustry.Keywords:automobilepaintingwastewater;multistagecontactoxidation;engineeringproject1100kg50t/。TP1mg/L。4.4。24h4kW37kW1.5kW1.5kW。1kW。60%0.78/(kW·h)360t。1.40/t。2100/d0.56。1.96/t。5、、、。DB21/1627－2008COD200mg/L480m3/d1.96/t。、。[1]BOLUARTEIAR,ANDERSENM,PRAMANIKBK.Reuseofcarwashwastewaterbychemicalcoagulationandmembranebioreactortreatmentprocesses[J].InternationalBiodeterioration&Biodegradation,2016,113:44-48.[2]KRITHIKAD,PHILIPL.Treatmentofwastewaterfromwaterbasedpaintindustriesusingsubmergedattachedgrowthreactor[J].InternationalBiodeterioration&Biodegradation,2016,107:31-41.[3]:GB8978－1996[4]:DB21/1627－2008[S].[5],,.:HA-A/A-MCO[J].,2010,26(5):16-20.[6],,.[J].,2012(6):106-110.[7],,,.[J].,2001,17(1):71-73.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!、。。HT。HTLDOLDOHT。-。139