不同SRT选择性排泥实现除磷亚硝化试验研究张杰

41420154JOUＲNALOFBEIJINGUNIVEＲSITYOFTECHNOLOGYVol．41No．4Apr．2015SＲT121111111．1001242．15009020～25℃SBＲ2340、20、10d．95%SＲTSＲT．20d95.92%～97.12%0.1～0.4mg/L0.12kg/m3·d1∶1SBＲ．SBＲX703.1A0254－0037201504－0603－09doi10．11936/bjutxb20140600662014-06-252012ZX07202－005512228071938—[e-mail]1976—[e-mail]ntsofSludgeＲetentionTimeandSelectiveSludgeＲemovalforＲealizingDephosphorization-NitrosationSystemZHANGJie12ZHOUYuan-zheng1LIDong1YANGJie1ZHANGJin-ku1JIANGSha-sha1LUJian11．KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentＲecoveryEngineeringBeijingUniversityofTechnologyBeijing100124China2．StateKeyLaboratoryofUrbanWaterＲesourceandEnvironmentHarbinInstituteofTechnologyHarbin150090ChinaAbstractThedephosphorization-nitrosationfortwowaysofdischargingsludgeinthreedifferentgradientsofSＲT402010dwerestudiedwithanSBＲwhichtreateddomesticwastewateratnormaltemperature20－25℃．TheresultsshowthatwiththedecreaseofSＲTthedephosphorizationimprovesgraduallyandthevolumetricloadofammoniaremovalreducesgradually．InthesameconditionofSＲTdischargingsludgefromthetopofthesludgebedgetabetterphosphorusremovalandhighervolumetricloadofammoniaremovalthanthatfromthebottom．Inthelongrunthestableoperationofdephosphorization-nitrosationtreatingdomesticwastewaterbySBＲatnormaltemperaturewasachievedbydischargingsludgefromthetopofthesludgebedandcontrollingthesludgeageat20d．InthisconditiontheeffluentconcentrationofTPwas0.1－0.4mg/LTPremovalratewas95.92%－97.12%thevolumetric2015loadofammoniumremovalwas0.12kg/m3·dandtheratioofnitritenitrogenandammonianitrogenintheeffluentwasabout1∶1whichprovidedtheappropriateinletforanaerobicammoniaoxidation．KeywordsdomesticwastewaterdephosphorizationnitrosationsludgedischargemethodsludgeretentiontimesequencingbatchreactorSBＲ、、、1．．CANON22．PAOsAOB．．SBＲ、．2AOBAOB．Zeng3VFAPHA．．SＲT．Mamais4SＲT．5-7SＲT8～15d．．SBＲSＲT．SＲTAOB．．．Maerz8、、．．Winkler9FishPAOsGAOs．SBＲ．．SBＲ．11.1SBＲ1．35cm25cm15L67%．14cm．、、．pH、DO．．1.224064SＲT1—2—3—4—5—6—7—．a、b、c、d、、、．1Fig．1Schematicdiagramoftheexperimentalequipment90%．15LρMLSS3000mg/L．1．1.31.3.1SBＲSBＲ2min、240min、240min、60min、10min、5min、60min．．1Table1WastewatercharacteristicsρNH+4-N/mg·L－1ρNO－x-N/mg·L－1ρTP/mg·L－1pHρCOD/mg·L－1ρBOD5/mg·L－1/mg·L－1CaCO3ρSS/mg·L－170～85＜17.0～10.57.0～7.8200～350120～150550～61076～114．41．．2．SＲTSＲT30dSＲT3．SＲTSＲT30dSＲT4．SＲT20d．10%．2．1.3.2CODΔρTP/ΔρCOD．100mL2400mL2Table2OperationalconditionsofthereactorSＲT/dρDO/mg·L－11+∞0.5～1.01—302400.5～1.031—603200.5～1.061—904100.5～1.091—1205400.5～1.0121—1506200.5～1.0151—1807100.5～1.0181—2108200.5～1.0211—2409200.5～1.0241—270．0.5mol/LHCl0.5mol/LNaOHpH7.5±0.0522.0±0.5℃．pH．COD、TP、COD．SBＲ3．50620151.3.3AOB．100mL32400mL．NH4ClNaHCO3ρDO0.2～0.5mg/L0.5mol/LHCl0.5mol/LNaOHpH7.8±0.0522.0±0.5℃．NH4Cl．AOB．SBＲ3．1.4DO、、pHWTWCODCODTPMLVSS．NH+4-NNO－2-NN-1-NO－3-NTrussell10．11．SＲTVNO－2-NVSSSＲT=Vr×ρVSSrQeff×ρVSSeff+Qex×ρVSSex1VNO－2-NVSS=ΔρNO－2-NΔt×ρMVLSS2VrLρVSSrg/LQeffL/dQexL/dρVSSeffρVSSexg/LΔρNO－2-NΔtmg/LΔtminρMLVSSg/L．22.12.1.12．3012107．2COD．2ΔρTP/ΔρCODCOD．2ΔρTP/ΔρCODFig．2ComparisonchartofΔρTP/ΔρCOD230ΔρTP/ΔρCOD0.167ΔρTP/ΔρCOD0.253210ΔρTP/ΔρCOD0.335ΔρTP/ΔρCOD0.375．ΔρTP/ΔρCODΔρTP/ΔρCOD．12．PAOsGAOSWinkler9ΔρTP/ΔρCOD．ΔρTP/ΔρCOD．12PAOs6064SＲTC2H4O2+HPO3PAO+H2O→C2H4O2+PO3－4+3H+VFAC2H4O2PHAΔρTP/ΔρCOD0.483．210ΔρTP/ΔρCOD30ΔρTP/ΔρCOD．30．210．30ΔρTP/ΔρCOD0.086210ΔρTP/ΔρCOD0.040．Winkler9．Winkler．13-14．．．2.1.2AOB3012107VNO－2-NVSS．2AOB．．3．330VNO－2-NVSS0.203mg/min·g0.261mg/min·g210VNO－2-NVSS0.119mg/min·g0.153mg/min·g．VNO－2-NVSSVNO－2-NVSS．AOB．3Fig．3Variationsofnitritegenerationrateofunitsuspendedsludgeconcentration1516．Larsen17Mobarry18．AOB．Martinez19SVI、．210．25.8mg21.0mg．AOBPAOsGAOs15-16AOBAOB．．2.22.2.124ρTPinf、ρTPmid、7062015ρTPeff．4Fig．4VariationoftotalphosphorusconcentrationatdifferentSＲTsanddifferentwaysofsludgedischarged7～10.5mg/L．1hρTPinf12～15.5mg/L．431.7%．SＲT54.2%、81.9%、90.4%．SＲT68.5%、93.8%、97.2%SＲT．Brdjanovic20．SＲT．．8、9．892.5%996.0%．．83448SＲT3481.2%90.4%892.5%．2.2.2ΔρTP/ΔρCOD5ΔρTP/ΔρCOD．5ΔρTP/ΔρCODFig．5VariationoftotalammoniaoxidationloadandΔρTP/ΔρCODatdifferentSＲTsanddifferentwaysofsludgedischarged5ΔρTP/ΔρCOD0.18ΔρTP/ΔρCOD．SＲTΔρTP/ΔρCOD0.268、0.290、0.302．SＲTΔρTP/ΔρCOD0.282、0.348、0.380．17SＲT．SＲTΔρTP/ΔρCODSＲT．Whang2120℃SBＲ10d8064SＲT4．SＲTΔρTP/ΔρCODΔρTP/ΔρCOD．．95%．5SＲT40、20d0.289、0.223kg/m3·dSＲT10d30d0.141kg/m3·d．SＲT40、20d0.298、0.264kg/m3·dSＲT10d30d0.197kg/m3·d．SＲT．AOBSＲTAOBAOB．22SBＲ．．5SＲT40、20d．．8、9SＲT20d30d8ΔρTP/ΔρCOD0.3329ΔρTP/ΔρCOD0.35587d0.219±0.05kg/m3·d97d0.258±0.05kg/m3·d．ΔρTP/ΔρCOD．SＲTSBＲ．40d10d20d．2.320d92706ρN、ρCODcrρTP．6Fig．6Characteristicsofremovalpollutantsintypicalcycle620d．0.262kg/m3·d1∶1．ρCODcrρCODcr80.8%ρCODcr19.2%．ρCODcr120minρCODcr98%．ρCODcrVFA．VFA239062015ρCODcr．Barnard24VFAPHA．PAOsPHA．4、5SＲTΔρTP/ΔρCOD．3mg/L．、．31SBＲ40d．10d．20d．2SＲT．SＲT20dTP81.9%93.8%0.12kg/m3·d0.10kg/m3·d．3．．1．D．2010．WANGJun-an．IntegratedprocessofanaerobicoxicphosphorusremovalandanaerobicammoniumoxidationnitrogenremovalforurbansewageregenerationD．BeijingCollegeofArchitectureandEngineeringBeijingUniversityofTechnology2010．inChinese2．CANONJ．