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34 120023 西安建筑科技大学学报()J.Xi’anUniv.ofArch.&Tech.Vol.34 No.1Mar.2002DE、袁宏林,王晓昌(,710055) :DE、,.、.:DE型氧化沟;生物处理;硝化;反硝化;脱氮;除磷:X703 :A :1006-7930(2002)01-0034-05 AstudyontheprocessofnitrogenandphosphorusremovalintheDEtypeoxidationditchYUANHong-lin,WANGXiao-chang(SchoolofEnvir.&Munic.Eng.,Xi'anUniv.ofArch.&Tech.,Xi'an710055China)Abstract:Throughaninvestigationofwaterqualityparametersatdifferentcrosssectionanddifferentdepth,itwasrevealedthatliquidisalmostcompletelymixedintheDEtypeoxidationditchinBeishiqiaoWastewaterPurificationCenter,Xi'an.Thehighefficiencyofnitrogenandphosphorusremovalisresultedfromfastabsorptionofpollutantsbythehighsludgeconcentrationandactivityintheditch.Keywords:DEtypeoxidationditch;biologicaltreatment;nitrification;denitrification;nitrogenremoval;phosphorusremoval前 言,.,,.2060Pasveer(),,[1,2].2080,,.,,、.KrugerDE,DE,.:2001-03-20:(00JD250):(1965-),,,,,.DOI:10.15986/j.1006-7930.2002.01.0081 DE型氧化沟处理流程及运行方式1DE.、、、、、、,.2DE,、、、、、.,,7~8min,.DE,,240min,1.图1 北石桥污水净化中心处理工艺流程(图中编号1~5为测试断面位置)图2 DE型氧化沟组成示意1 DE()/min0~15(15)15~120(105)120~135(15)135~240(105)1#2#2#1#2#2#1#1#1#→2#2#→1#2#1#2#1#1#2#1#—2#—2 选择池中营养物及有机物的转移,TN、TP、COD、pH、、DO、SV302.,TN、TP、COD,351:DE、50%,,,5~10min,[2],7~8min,,.,,,()、、.2 TN/(mgL-1)TP/(mgL-1)CODcr/(mgL-1)pH/℃DO/(mgL-1)SV30/% 25.1~27.83.18~3.5577.3~94.57.47~7.6019.3~19.50.4~0.616.7~17.8 15.1~16.50.79~0.8821.0~24.77.45~7.6019.3~19.50.2~0.422.6~24.5/%38.6~42.472.0~78.569.5~77.8____3 DE型氧化沟各部分的水质参数图3 氧化沟中各断面不同水深的水质测试结果1,,0~15min,1#2#、2#、1#、2#;15~120min,2#、1#2#、;120~135min,;135~240min,.,1#.3.1 1#2,(0,1,2,3,4m).3.DE,DO、COD、TN、TP,.,.3.2 ,36 () 34,3.3 ()CODcr/(mgL-1)28.525.721.931.4TN/(mgL-1)14.714.110.616.0TP/(mgL-1)1.001.071.181.14DO/(mgL-1)1.262.522.402.67pH7.467.487.427.36SV3024.622.223.817.23,COD,TN,TP,DO,pH,SV30,,.4 分析讨论,DE、(),.,(12h),,,[3]..,.,,()、()、(),[4],、.SV30 17.2~24.6%,,.,,(COD、TN、TP),,.,,,,(DO2.0mg/L),.、,(pH7.36~7.48),:,,,[3,5],.,DETN、TP、COD.,50%,,,,().,,,DO0.4~0.6mg/L,DO0.2~0.4mg/L,DO0.2mg/L[6],,TP72.0%~78.5%,,,,.5 结 语(1)DE,,COD、TN、TP、pH,.(下转第52页)371:DE、,0.,,,,.3 结 论、.,,.1%,.,,,、,.,.:[1] GLOEWY,Recentdevelopmentinsmartstructureswithaeronauticalapplications[J].SmartMater.Struct,1997,(6):11-42.[2] CHANGFU-KUO,Built-instructuralhealthmonitoringforcompositestructures[A],Proceedingsofthe12thInternationalConferenceonCompositeMaterialsParis:Publishedbyparisuniversity,1999.5-9.[3] FARRARCR,DOEBLINGSW.Vibration-basedstructuraldamageidentification[J].PhilosophicalTransactionsoftheRoyalSocietyofLondonSeriesA-MechanicalPhysicalandEngineeringSciences,2001,359(1778):131-149.[4] CATTARIUSJ,INMANDJ.Timedomainanalysisfordamagedetectioninsmartstructures[J].MechanicalSystemsandSignalProcessing,1997,11(3):409-423.[5] WANGQ,DENGXM.Damagedetectionwithspatialwavelets[J].InternationalJournalofSolidsandStructures,1999,36(23):3443-3468.(上接第37页)(2),,().(3),,.(4)DE,、,,,.[1] .の[M].;;,1996.238-249.[2] .[J].,1999,13(5):4-7.[3] ,.[M].:,1998.182-192.[4] DAIGGERGT.Orbal/[J].,1999,15(3):1-6.[5] TCHOBANOGLOUSG,BURTONFL.WastewaterEngineering.3rded[M].NewYork:McGraw-Hill,1991.529-641.[6] ,,.[J].,1999,18(1):16-18.52 () 34
本文标题:DE型氧化沟的脱氮除磷过程袁宏林
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