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20103··CASS(CyclicActivatedSludgeSystem),2,,。、、、。—,,,。CASS,、、、、、、。11.1,CASS(100048)CASS,,。,30℃,NH3-N80%,TN70%;25%、50%、100%200%,TN50%、58%、62%70%,;DO2mg/L4mg/L,TP82%37%。X143A1673-4637(2010)03-0021-03:2009-12-08:(1979—),,。:(2008ZX07209-03)(D0706006040391)。StudyonnitrogenandphosphorusremovaleffectbyCASSprocessFUChao-chenLIAORi-hongWANGPei-jingHEGangGUYong-gang(BeijingHydraulicResearchInstitute,Beijing,100048,China)AbstractInthispaper,CASSprocesswasstudiedfornitrogenandphosphorusremovalwiththeemphasesonthecorrelationbetweennitrogenremovalefficiencyandtemperatureandsludgereturnratio,phosphorusremovalefficiencyandDO.Theexperimentshowedthatat30℃theremovalratesofNH3-NandTNwerehighest,80%and70%respectively.TNremovalefficiencychangedwithsludgereturnratio,withratherhighersludgereturnratio,TNremovalprocessescouldbecompletedefficientlyandsteadily.ThecorrelationbetweenphosphorusremovalefficiencyandtheinfluentfactorssuchasDOwasobserved,whenDOinaerobicareawere2mg/Land4mg/L,theremovalratesofTPwere82%and37%respectively.KeywordsnitrogenandphosphorusremovaltemperaturereturnratioDO·21·20103··/℃;NH3-N;TN。/d806040200-20/%03055801051351602CASS1mg/LCODBOD5pH120~40022596~33016540~1005058~129832.5~8.24.75.8~9.27.5:pH,mg/L。1。1.2、CASS、CASS、、。,CASS,CASS。,CASS。1。1.3COD;;;;DO、pH、。22.1QC14d、DO(2.0~2.5)mg/L、R100%,(17~30)℃,CASSNH3-N、TN2。,,,[1]。,,30℃,NH3-N80%,TN70%,,。,,。。2.2,TNηR:η=R/(1+R),,TN,。,、QC、DO,,3。200%,TN54%,,,[2]。2.3,,,CASS,,。 70605040302010TN20255075100120150200300400/%/%3CASSTN1CASS1234CASS5CASS678910114510789231161·22·20103··1鑑1赟22(11001242100048)1984—2009BAF,、,DO、C/N、pH,。DOC/NX522B1673-4637(2010)03-0023-05:2010-02-01:(1985—),,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !#$%&!#$’&!#$6543210TP/(mg/L)22222.844.52.222DO/(mg/L)TP;TP。4DOCASSCASSCODTP,DO2mg/L,TP0.66mg/L;,CASSDO(3.5~4.0)mg/L,TP86%37%;,DO2mg/L,TP,12d,TP0.66mg/L,84%,4。,β-,ATP,。,β-,[3]。TP,,DO2mg/L,β-,,。3(1)CASS,30℃,NH3-N80%,TN70%。。(2)CASS,。(3)CASSDO2mg/L,TP。,,,。[1],,.[J].,2006,22(9):30-33.[2],,.[M].:,2006:140-144.[3].[M].:,1999.(:)·23·
本文标题:CASS工艺生物脱氮除磷效果分析付朝臣
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