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35220164SICHUANENVIRONMENTVol.35No.2April2016··2015-11-031982－2008。hs85927@qq．com。CAST1，2，2，3，4，41.2100382.6100813.2019004.200092CAST，，CAST，、。，MLSS3500～4000mg/L，4h，DO0～0.5mg/L，DO2～3mg/L，COD0.3～0.8kg/(m3·d)，SRT6～8d，15℃～21℃，CAST，TP82.2%，TP0.25mg/L;DO，;CAST，NH4-NTN28.6%20.7%，SRT。CASTX703A1001-3644201602-0003-07ProductiveResearchonCharacteristicsofNitrogenandPhosphorousRemovalofCASTTechnologyLIXuan1LILiang2LIUWu-ping2RENMing-hua34GAONai-yun41．JiangsuFuhuanEnvironmentalScience＆TechnologyCo．LtdNanjing210038China2．South－westMunicipalEngineeringDesign＆ResearchInstituteofChinaCo．Ltd．Chengdu610081China3．BaosteelEngineering＆TechnologyGroupCo．Ltd．Shanghai201900China4．StateKeyLaboratoryofPollutionControl＆ResourceReuseTongjiUniversityShanghai200092ChinaAbstractMostresearchesonCASTatpresentinourcountryarebasedonpilotorbatchtest.Astheresulttheresearchconclusionsusuallycannotbeappliedtopracticalproduction.InthisstudybasedonproductivetestonCASTtreatingmunicipalseweragewascarriedout.Removalcharacteristicsofnitrogenandphosphorousareinvestigated.TheresultshowsthatwhenMLSSwas3500～4000mg/Lperiodictimewas4hDOwas0～3mg/LCODloadwas0.3～0.8kg/m3·dSRTwas6～8dandtemperaturewas15℃～21℃theremovalefficiencyofphosphorouswasgood.TheaverageremovalrateofTPreached82.2%．TheaverageconcentrationofeffluentTPwas0.25mg/L.TheDOinbiological－selectorwastoohighforthephosphoroustobereleasedfully.Theremovaleffectofphosphorouscanbeenhancedifanaerobicconditionisimproved.Theremovalefficiencyofnitrogenwasrelativelypoor.TheaverageremovalefficiencyofNH4-NandTNwas28.6%and20.7%respectivelywhichwascloselycorrelatedtothelowSVIandshortSRT．KeywordsCASTprocessproductivetestremovalofnitrogenremovalofphosphorusCyclicActivatedSludgeTechnologyCASTM.C.GoronszySBRSequencingBatchReactor1。－SBR。SBRCASTDOI:10.14034/j.cnki.schj.2016.02.0022。CAST3～5。CASTCAST。CAST、。11.1。20m3/d10m3/d。8CAST24/。8CAST8#50。1.2。CAST。CAST45m3m30m8100m3。6。。、、1。CAST20%。。CAST。2。1.3CASTCAST45×30m6m。3。1CASTFig.1SchematicdiagramofCASToperationprocess2Fig.2ProcessdiagramofWWTP1.2.3.3CASTFig.3ReactionpoolofCAST22.1435。0min30min60min90min120min150min180min60min。2.21。1Tab.1Waterqualityindexesofinletwatermg/LCODCr48093197BOD51506284TN32.0812.0121.35NH4-N26.97.3218.92SS27839151NO3-N4.110.031.09TP2.620.491.48pH8.077.097.572.3CODCrNH4-NNO3-NTNTP。BOD5。60min90minSVMLSSSVI。、DO。2.4①1800～2700m3/h②DO0～0.5mg/L2～3mg/L③15℃～21℃④SRT6～8d⑤λ0.304.2m6m⑥2h⑦MLSS3500～4000mg/L⑧COD0.3～0.8kg/m3·d⑨4h。33.1CAST3.1.1CASTCAST4。CAST。2.62mg/L0.49mg/L1.48mg/L0.48mg/L0.11mg/L0.25mg/LTP《》GB8978－2002≤0.5mg/L93.3%62.7%82.2%。4Fig.4TheconcentrationofphosphorusininletoutletwaterandselectedareaTPTP。。4TPTP。TP2.49mg/L0.51mg/L1.15mg/L1.48mg/L。CAST7。。8PAOsPHAPAOsPHA。PAOs。PHA。。CASTSBR。52CAST2h。。。。2DO5。5DOFig.5DOvalueinwaterinletstage52DO。DO9。15minDO2.5mg/L5minDO3.5mg/L15min～25minDO。10minDO0.5mg/L。DO。15min～25min2DO15min～25min。DO。DO0.5mg/L。NO3-N。DO＞3.0mg/L。CAST。①SRT6～8d。。、SRT。②TP1.48mg/L。TP0.26～1.40gTP/kgMLSS·d。。TPTP1.23mg/L。BOD∶N∶P=100∶5∶110。BOD80mg/L0.8mg/LTPTP。3.1.2CAST26。6TPFig.6ChangeofTPconcentrationinoneperiod6TP12.58mg/L0.38mg/L21.68mg/L0.35mg/L0TPTP0.2mg/L。0TP2h635TPTP。①30min60minTPTP②60min、90min120minPHATP0.2mg/L③120min、150min180min④CAST0.3TP。3.2CAST3.2.1CASTCAST7、8。7CASTTNFig.7RemovalefficiencyofCASTonTN8CASTNH4-NNO3-NFig.8RemovalefficiencyofCASTonNH-4－NandNO3-N7、8。NH4-N26.9mg/L7.32mg/L18.92mg/L20.28mg/L7.58mg/L14.61mg/LNH4-N44.2%4.2%28.6%。TNTN32.08mg/L12.01mg/L21.35mg/L26.48mg/L9.91mg/L18.16mg/LTN43.3%2.3%20.7%。NO3-N4.11mg/L0.03mg/L1.09mg/L3.83mg/L0.03mg/L1.69mg/L。CAST51/。CAST11。DODONO3-N12。DO13。DODO。MLVSS2500～3000mg/LMLVSS/MLSS=0.7～0.75SV10%MLSS3500mg/LSVI9。9SVI20mL/gSVI70～200SVI。72CAST9Fig.9Thechangeofsludgevolumeindex。2SRT。10～15dSRT。SRT2。20d10。SRT6～8dSRT。14SBR。SRT。8NH4-NNH4-NCASTNH4-NNH4-N。NH4-N。NO3-NNO3-N1.69mg/L。3。DO。。CAST20%4CAST。4。20℃～30℃15℃5℃。20℃～40℃15℃。15℃～21℃、。5CAST11。CASTSBR、、。。CAST。。DO。。CAST、。。、。。CAST。3.2.2CAST110。10NH4-N、NO3-NTNFig.10ThechangesofNH4-NNO3-NandTNinaperiod83510TPCASTNO3-NNO3-NNO3-NNH4-N、NO3-NTNCAST。、0.3CAST。44.1CASTGB18918－2002。4.2CAST82.2%TP0.25mg/LSRT6～8d。DO。4.3CASTNH4-N28.6%TN20.7%。CASTSRT6～8dSVI20mL/g。。4.4CASTN、P。0.3CAST。4.53h45min40min50min75minDO1.0～2.5mg/L1.0～3.0mg/LDO2.0mg/LSRT15d10～12dMLSS3000～5000mg/L。1GoronszyMC.Aerateddenitrificationinfull-scaleactivatedsludgefacilitiesJ.Wat.Sci.Tech.19973510105-111.2GoronszyMC.ThecyclicactivatedsludgesystemforresortareawastewatertreatmentJ.Wat.Sci.Tech.1995329-10105-114.3.CASSJ.200319134-37.4GoronszyCCASSJ．19961264-10.5.J.20032355-8.6．CASTJ.200423228-44.7．J．200325938-41.8．SBRJ．200319333-36.9.CASTJ.200531741-44.10．M.1999.11.D．2005.12.J.199824126-9.13．J．200127122-24.14.SBRJ.2001171117-20.92CAST