A2O生化处理工艺对污水的处理王宏刚

A2/OA2/O121．0630002．063000COD。GB18918—2002《》A。CODCrEGSBA2/O《》A。。。EGSBA2/OX713B1006－6772201202－0105－04StudyonsewagetreatmentadoptingA2/ObiochemicaltreatmentprocessWANGHong-gang1WANGYong21．TangshanCityEnvironmentalMonitoringCenterStationTangshan063000China2．TangshanCityEnvironmentalProtectionBureauTangshan063000ChinaAbstractWiththechangingofproductionprocessincowfarmthesewagetreatmentstationhasbeenoverburdenedduetolargeamountsofsewage．InordertomeettheStandardAofDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918—2002reformcurrentsewagetreatmentsystem．Thesewagecontainshigh-concentrationCODCrandthebiodegradabilityisstrong．AdoptingexpandedgranularsludgebedEGSBreactorandtypicalA2/ObiochemicaltreatmentprocesssupplementedbyozonedeepoxidationthesewagecouldbetreatedtomeettheStandardA．Theirrigationconditionsoffarmlandsurroundingthiscowfarmispoorthatmeansthetrea-tedwatercouldbeusedtoirrigatefarmland．Thenewproductionprocesscreatesafavorabledevelopmentenviron-mentandgreatlypromotesthedevelopmentofenterprise．KeywordsEGSBreactorA2/Oprocessozoneoxidation2012－02－071978—、、。．A2/OJ．2012182105－108．55002008。COD≤100mg/L。2010COD。GB18918—2002《》501DOI:10.13226/j.issn.1006-6772.2012.02.035《》2012182A。1。≤1200m3/dCOD≤1200mg/LpH6～9BOD/COD＞0.35。1。12、、。、、1、2216000m3。2。2．12．1．121。12245d120d/m3·d－1480720COD/kg·d－195769576TCODCr/mg·L－11995013300TSS/mg·L－140004000NH3－N/mg·L－11000667TP/mg·L－110067pH7.5～8.57.5～8.522．1．2GB18918—2002《》A2。2ACOD/mg·L－150BOD/mg·L－110SS/mg·L－110NH3－N5TP0.5TN15pH6～92．22．2．1、①②③④。2．2．2BOD5、CODCrSSNP。。B/C0.5。。A2/O。2。601A2/O22．31、22。2NH3－N。EGSB。3EGSB。EGSB。4A2/OCO2H2O。A2/O。5。6、。7。。2．4A2/O、、1。EGSB。EGSB2。。、、。331。41。2、。pH7～920～30℃。701《》20121823/m0.8×0.8×1.32.0×2.5×3.410.0×2.5×3.44.2×4.0×5.5+2.0×2.5×3.44.0×3.0×5.53.7×4.0×5.53.0×3.08.3×4.8×5.5+2.4×6.8×5.5EGSB9.0×0.4A2/O58.95×13×5.4A2/O2.6×11.8×1.84.0×7.3×6.010.8×6.03EGSB30～40kg/m3。。2kgCODCr/m3·d1m/h。35±2℃pH6.5～7.8CODCr∶N∶P=100～500∶5∶1、、。4A2/O0.03～0.20kgBOD5/kgMLSS·d2.0～4.0g/L5.0～7.0g/L。10～30d。50%～100%200%～400%。5。。1．J．2003166195－197．2．J．2006221欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋欋51－54．“”。。“”。。“”。。“”。。。“”“”2。“”“”、“”。。“”。。“”。。。。。ηs。“”、“”。%。。“”、“”、“”。。“”、“”。。801