A2O工艺在污水处理厂一级A提标改造中的应用沈晓铃

A2/OA11221．2140722．2141742．5×104m3/dA2/O－《》GB18918—2002A。、、。A2/OAX703．1C1000－4602201108－0044－04ApplicationofA2OProcesstoUpgradingandReconstructionofWWTPforFirstLevelACriteriaSHENXiao-ling1LIDa-cheng1KONGJian-ming2JIANGXin-wei21．WuxiMunicipalDesignandResearchInstituteCo．Ltd．Wuxi214072China2．HuishanWastewaterTreatmentCo．Ltd．Wuxi214174ChinaAbstractThedesigncapacityofthird-phaseprojectofHuishanWWTPinWuxiis2．5×104m3/d．TheintegratedA2/OprocessanddeepbedDenitefilterareadopted．InadditionthefinaleffluentisdisinfectedbyUVsterilizationsystem．TheeffluentqualitymeetsthefirstlevelAcriteriaspecifiedintheDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002．Thegeneralprojectsituationprocessflowanddesignparametersarepresented．Thetechnicalcharacteristicsandrequirementoftheprocessdesignaresummarizedandanalyzed．KeywordsintegratedA2/OprocessfirstlevelAcriteriaprocessdesign12．5×104m3/d5×104m3/d。/CAST//DB32。A。A2/O－。22.1、1。1、Tab．1DesigninfluentandeffluentqualityBOD5/mg·L－1COD/mg·L－1SS/mg·L－1NH3－N/mg·L－1TN/mg·L－1TP/mg·L－1pH15040020032403．06～910501058150．56～9·44·27820114CHINAWATER＆WASTEWATERVol．27No．8Apr．201190%《》GB18918—2002A。2.2、、、、、。COD、BOD5、NH3－N、TN、CODSS、BOD5、NH3－NTP。TPSSTN。。1。1Fig．1Flowchartofwastewatertreatmentprocess33.15×104m3/d。11．5m20mm70°1311400m3/h160kPa90kW。3.25×104m3/d。11750mm6mm1．5kW。、12．5×104m3/d。3.3、。28m。2．4m3/m2·h1．46h。3.4A2/OA2/O122．5×104m3/d。A2/O、、、、2、3。2A2/OFig．2SchematicdiagramofintegratedA2/Oreactiontank3A2/OFig．3FlowchartofbiochemicalzoneofA2/O①A2/OA2/O、20%～80%100%～300%3．4h。。2．5×104m3/d·3．5g/L12．6h7．8h、1．4h、3．4h0．729kgDS/·54·．watergasheat．comA2/OA278kgBOD50．074kgBOD5/kgMLSS·d50%～100%100%～300%3．88d9．02d12．9d。。80090mm×1000mm13．4m3/h·4N=3．0kW6N=5．5kW642Q=600m3/hH=10kPaN=5．5kW。②。230m。0．95m3/m2·h4．00m3．42h。2。③。642Q=300m3/hH=70kPaN=11．0kW321Q=10m3/hH=150kPaN=1．5kW。④。2N=0．75kW。3.5。。6．55m3/m2·hNO－3－N0．43kg/m3·d6．55m/h23．5h0．5h6min15m3/m2·h90m3/m2·h12L/s·m2。。3.6A2/O。321、DO。Q=4950m3/hN=110kW。3.7。TNTN。A2/O。1145．6kg/dN=3kW。211Q=450L/hN=1．5kW。。PP1=3050mmV=32m3。321Q=400L/hP=0．4MPaN=0．75kW。3.8N=23．52kW。3.9112m5720．57kgDS/d50．58kgDS/m2·d21h。10．75kW。。2．0m12～15m3/h、、。4①A2/OA2/O、、。②。③A2/O51·64·278．watergasheat．com③。④。3、、。、。50%。。1．M．2003．2．J．20072816－8．3．J．20051275－77．4MarkJSharrerKataRishelStevenSummerfelt．Evalua-tionofgeotextilefiltrationapplyingcoagulantandfloccu-lantamendmentsforaquaculturebiosolidsdewateringandphosphorusremovalJ．AquaculEng2009401－10．5MuthukumaranAEIlamparuthiK．LaboratorystudiesongeotextilefiltersasusedingeotextiletubedewateringJ．GeotextilesGeomembranes200624210－219．02227815311×[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2010－12－2946。④SS。520105BOD5＜10mg/L、COD＜42mg/L、SS＜10mg/L、TP＜0．45mg/L、TN＜10mg/L。1．J．201026223－27．2．J．2010261233－35[e-mail]2010－12－16·15·．watergasheat．com278