不同碱度对SBR法短程硝化过程的影响王舜和

1009-6825201127-0130-03SBR2011-04-261981-3000511980-3000511977-301500SBR1807mg/L7132mg/L15025mg/L951mg/L570mg/LCaCO35。34%～98%FAFNADOpHDOpHSBR。X703A1CSTRSRTSBRDO。CSTRSBR。1molNH+42molH+pHpH7．0～8．5。HCO－3HCO－3pHHCO－3。SBRpHDO。2SBR15．0cm50．0cm8．12L。30±0．5℃。。NaHCO3pH7．0～8．5。SBR8h、、0．5h6．0h1．0h0．5h。SBR50%2～3。2．1250mLMLVSS=5．15mg/L。100mL4～5NH+4NO－21mol/LHCLpH7．0250mL。。30±0．5℃1000mL/min150rpm～155rpm。pHDO。2．2DOThermoOrion850ApHWTWpH526NH+4-NNO－2-NN-1--VSS。31molN→2molNaHCO3→1molCaCO3。NH+4-NCaCO3。1807mg/L7132mg/L15025mg/L951mg/L570mg/LCaCO3NH+4-N1．165．1810．450．560．36、、、1/3。pH、DO、3。3．11、3。0min～60min～。櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅StudyontheprojectevaluationofTianjinportwastewatertreatmentprojectWANGLiangAbstractTakingarenovationandexpansionprojectofTianjinportBeijiangwastewaterfacilitiesasanexamplefirstlyintroducesitsback-groundandsignificancesecondlythepaperanalysestheeconomicbenefitsandenvironmentalbenefitsaftertheconstructionandexploresthecontentofitseconomicassessmentandenvironmentalimpactassessmentandtheissueshouldbepaidattentionto．Bythiswaythispaperwillprovidereferencesforotherportwastewatertreatmentprojects．Keywordswastewatertreatmentprojecteconomicevaluationenvironmentalimpactassessment·031·372720119SHANXIARCHITECTUREVol．37No．27Sep．2011DOI:10.13719/j.cnki.cn14-1279/tu.2011.27.02387%98%2。250200150100500浓度/mg·L-1020406080100120t/min理论碱度NH+4-N理论碱度NO-2-N五倍碱度NH+4-N五倍碱度NO-2-N半碱度NH+4-N半碱度NO-2-N图1NH+-N和亚硝化的情况对比（一）434pHDO。3pHpHABCpHpH。pHCO2VCO2VNO2。VCO2＞VNO2pHVCO2＜VNO2pH。3pH80min～90minpHpH01pHSBRpH。DOV1V2。3DOpHDO。1008060400亚硝化率/%246810碱度倍数图2不同碱度下的亚硝化率9.59.08.58.07.57.06.5pH变化020406080100120140t/min理论碱度五倍碱度半碱度图3pH值变化情况（一）876543210DO变化%%%2060100140t/min理论碱度五倍碱度半碱度图4DO变化情况（一）ABC3．21/3120min67%34%。NH+4-NNH+4-Nt1/3NH+4-N80min。NH+4-N5、0min～120minNH+4-N。1/3。DO6DO1/3DO。DO。pH7。250200150100500浓度/mg·L-120406080100120t/min十倍碱度NH+4-N十倍碱度NO-2-N1/3碱度NH+4-N1/3碱度NO-2-N图5NH+4-N和亚硝化的情况对比（二）876543210DO变化20406080100120t/min十倍碱度1/3碱度图6DO变化情况（二）9.08.58.07.57.06.56.0pH变化020406080100120t/min十倍碱度1/3碱度图7pH值变化情况（二）41～。DOpHDO。21/3FAFNA。1/3。pHDO。3pHDODO。1Byung-HoHwangKyung-YubHwangEui-SoChoietal．．En-hancednitritebuild-upinproportiontoincreasingalklinity/NH4ratioofinfluentinbiofilmreactorJ．BiotechnologyLet-ters2000221287-1290．2SidneyBiesterfeldGregFarmerPhilRusselletal．．EffectofAlkalinityTypeandConcentrationonNitrifyingBiofilmActivityJ．WaterEnvironmentResearch2003375196-204．3GwenaeelAbrilMichelFrankingoulle．Nitrogen-alkalinityinter-·131·372720119SBR1009-6825201127-0132-02CAST2011-07-131982-030006CASTCAST。CASTX703A0、、、。、、、、、、、、。。、。CAST。1500m3/d2500m3/d。GB18466-2005。1。调节池，事故池CAST池A/B缓冲水池消毒剂接触消毒池脱氯池达标排放医院废水曝气提升泵栅渣排泥与医院其他危废一并处理臭气处理装置吸粪车定期抽吸过滤器脱氯剂臭气污泥消毒池达标排放图1污水处理工艺流程框图1CASTCAST。SBR。、、pH。CAST。2CAST2．1104．17m3/h。GB18466-2005。1。1mg/LBOD5CODSSNH3-N1002508030≤20≤60≤20≤152．2CASTCAST。L×B×H=10．0m×1．5m×4．5m4．0m0．5mDN300DN300DN200800mm×700mm。L×B×H=13．5m×10．0m×4．5m4．0m0．5m2、1櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅actionsinthehighlypollutedscheldtbasinbelgiumJ．WaterResearch2001335844-850．OninfluenceofvariousalkalinitiesonshortcutnitrificationprocessofSBRmethodWANGShun-heWANGHong-liPINGHuiAbstractAccordingtotheintermittentteststhepaperresearchesoninfluenceofvariousalkalinitiesonshortcutnitrificationprocessofSBRmethoddiscoversthenitrosificationaccumulationsreflectthreechangeprocessinfivealkalinitiesof1807mg/L7132mg/L15025mg/L951mg/Land570mg/LallcalculatedbyCaCO3indicatesthenitrosificationaccumulationratiosalterbetween34%and98%provesbytheanalysisthatthefallingofnitrosificationaccumulationratiosiscausedbytheaccumulationofFAandFNAandundertakestheonlinetestonDOandpHvaluesoastohavetheautomaticcontrolovertheindexesandfindsDOcanbemorefitfulforthecontrollingparameterofSBRreactiontimethanpHvalue．Keywordsnitrosificationaccumulationalkalinitiesshortcutnitrification·231·372720119SHANXIARCHITECTUREVol．37No．27Sep．2011