倒置A2O工艺在惠阳城区污水处理厂的应用

。70kt·a-1230kt·a-1CAST2007。、A2/O70kt·a-1。200910。1A2/OA2/O、。。。A2/O1、、3、2HRT[1]3、、[1]。A2/OA2/O、A2/O。。A2/O[2]。22.11。A2/O516211A2/O。、GB18918－2002B。A2/OX799.3B1000-3770(2011)[e-mail]3-NTNTP≤280≤60≤145≤20≤200≤20≤25≤8≤35≤20≤5≤11Tab.1DesignqualityofsewagetreatmentplantCOD/mg·L-1SSBOD5/mg·L-1ρ/mg·L-137120111TECHNOLOGYOFWATERTREATMENTVol.37No.1Jan.,20111301A2/OFig.1InvertedA2/Osewagetreatmentprocess


   !2.21。1.0。。。。2.21。。14.0m16.3m21.0m20mm84°。4221500m3·h-1、20m、110kW。2。。21.2m3mm1.06m·s-160°。23.65m、2.05m3.7m1.7m。3、、、。BOD50.074kg·kg-1·d-120.4d。、。58.0m×22.0m、6.7m6.3m7762m3。MLSS3500mg·L-1HRT2.66h。44kW2.5m、34r·min-142340m3·h-11.3m15kW。58.0m×20.0m、6.5m6.0m7762m3MLSS3500mg·L-1HRT2.30h。2456.0m×14.0m5.0m4.5m0.83m3·m-2·h-1。44kW2.5m、34r·min-1。414.0m×1.0m5.0m4.0m1.0m3·s-1。2413.0m×8.0m5.0m4.25m7.01m3·m-2·h-1。4。ICAST24。22.0m×8.95m6.8m5.8m。24.9kW。MLSS3500mg·L-1HRT1.57h。33.0m×22.0m6.8m5.8m。2,13.8kW。MLSS3500mg·L-1HRT5.77h。5。118.0m×8.1m6.0m220m3·min-1。40%～100%166.6kPa。321200kW110m3·min-168.6kPa3200r·min-1。6。110.0m×10.0m4.8m350m3。7。127.0m×9.0m6.0m2.0m2。33.146kt·d-12500～3000mg·L-1。12%～20%DOA2/O131TREATMENTOFBUTYLXANTHATEWASTEWATERBYSEQUENCINGBATCHREACTORZhangXin1,ZhouHongbo1,2(1.SchoolofMineralsProcessingandBioengineering,CentralSouthUniversity,Changsha410083,China;2.KeyLaboratoryofBiometallurgy,MinistryofEducation,Changsha410083,ChinaAbstract:Simulatedbutylxanthatewastewaterwastreatedbyasequencingbatchreactor(SBR).Theeffectsofmassconcentration,aerationrate,feedingmode,settlingtimeonthebiodegradationofbutylxanthatewereinvestigated.Experimentalresultsshowedthat,undertheconditionsof8hcompletedmixedaeration,100mg·L-1influentxanthateconcentration,theeffluentxanthateconcentrationwaslessthan0.4mg·L-1.Atoptimumconditions,i.e.12hrunningcycle,including10minbatchwastewaterfilling,8hcompletedmixedaeration,airflowrateof100mL·L-1,40minsludgesettling,10mindecantationand180minidleperiod,theinfluent100mg·L-1xanthatewascompletelydegraded.Attheoptimumprocessconditions,maintainingtheinfluentconcentrationof100mg·L-1constant,aerationtimewasreducedto6h,theSBRruns3cyclesperdaywithafullcycleof8h,whichincreasesthedailytreatmentcapacityoftheSBRreactor.Whiletheeffluentxanthateconcentrationwas0.04mg·L-1,andtheeffluentCODconcentrationis55mg·L-1,bothmeettheemissionrequirements.Keywords:sequencingbatchreactor;butylxanthate;biodegradation;processoptimizationTHEINVERSEA2/OWASTEWATERTREATMENTPROCESSOFHUIYANGZhangXinwu(WastewaterPlantinTheAreaofHuiyang,Huiyang516211,ChinaAbstract:ThedesignandoperationoftheinvertedA2/OprocessofasewagetreatmentplantinHuiyangwasIntroduced.Thepracticalresultshowedthattheprocesswasinlinewithrequirementsofurbansewagetreatmentwithstablebiochemicalsystemandhighremovalrateoforganicmatter,thenitrogenandphosphoruswereremovedaswell.ThewatercanbestabilizedtothelevelofGB18918－2002Bemissionstandards.Keywords:theinverseA2/Oprocess;sewagetreatment;designparameter1～2mg·L-1100%50%HRT18h20t·d-125d。3.220099291113GB18918－2002B[3]。2。3.35200650870kt·d-10.86·t-1。46kt·d-1。0.18kWh·t-10.78·kWh-10.1404·t-10.0110·t-10.0131·t-10.0029·t-10.0297·t-10.1971。A2/O。4A2/O。GB18918－2002B。[1],.[M].:,2005:106.[2],,,.AAO[J].,2004,20(9):53-55.[3]GB18918－2002[S].NH3-NTNTP150～23020～4060～1103～10100～2005～1516～261～622～305～152.0～4.00.15～0.802Tab.2WaterqualityduringthetrialoperationofsewagetreatmentplantCOD/mg·L-1SSBOD5/mg·L-1ρ/mg·L-1!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111371132