COD对生物流化床法降低污泥回流液中氮磷的影响李萍

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EffectofCODontheremovalofnitrogenandphosphorusinthereductionofconcentrationofsludgerefluxingliquidbybiologicalfluidizedbedLiPing1,LinHai1,HeJianmin2,ChenSongmei3(1.DepartmentofEnvironmentalEngineering,UniversityofScienceandTechnology,Beijing100083,China;2.ChongqingSteelGroupDesigningInstitute,Chongqing400082,China;3.YantaiXinhaiDesignandResearchInstituteofMiningMachineryCo.,Ltd.,Yantai265500,China)COD1,1,2,3(1.,100083;2.,400082;3.,265500)[],、、,COD/TNCOD/TP。,COD,。COD500mg/L,TN115mg/L,TN72.05%,,COD/TN4.35。COD480mg/L,TP11.25mg/L36.98%,COD/TP42.67。,TN56.35%,TP28.96%。[];;[]X703.1[]A[]1005-829X(2009)09-0019-03Abstract:Thesludgerefluxingliquidinthemunicipalsewagetreatmentplanthasbeeninvestigationandthesituationthatremovingnitrogenandphosphoruswithbiologicalfluidizedbedunderdifferentlevelsofcarbon,nitrogenandphosphorushasbeenstudied.TheeffectsofCOD/TNandCOD/TPontheremovalofnitrogenandphosphorusbybiologicalfluidizedbedareanalyzed.TheresultsshowthatCODhaslittleeffectontheremovalofnitrogen,buthasbettereffectontheremovalofphosphorus.WhenCOD=500mg/LandtheTNininfluentwateris115mg/L,theremovalrateofTNreaches72.05%.Atthistime,theCOD/TNis4.35.WhenCOD=480mg/LandtheTPininfluentwateris11.25mg/L,theremovalrateis36.98%.Atthistime,theCOD/TPis42.67.Thebiologicalfluidizedbedhascertainremovaleffectonthereductionofsludgerefluxingliquidwithhighlyconcentratednitrogenandphosphorus.TheremovalrateofTNcanbeashighas56.35%andtheremovalrateofTPis28.96%.Keywords:biologicalfluidizedbed;sludgerefluxingliquid;removalofnitrogenandphosphorus[]“”(2006BAC19B01)29920099IndustrialWaterTreatmentVol.29No.9Sep.,2009。,,,TP45.5mg/L、TN150mg/L。,,,,,。11.1,、〔1〕。1。1,COD19——2009-09,29(9)COD,TP、TN、NH3-N。,TP、TN,,,,。,。。,〔2-3〕。、、〔4-9〕,。,,。1.21。1,A2/O,8,。,,。2,。,。、。、HRT8.35、3.91、11.74h,HRT24h,0.3mL/min,pH7.0。。2.1COD/TNCOD/TNTN2。2,COD/TN4.35,TN72.05%,CODTN500mg/L115mg/L。CODTN,COD/TN,COD/TN3.737.27,COD560mg/L400mg/L,TN150mg/L55mg/L,TN。,CODTN,COD/TN,COD,COD。C/N46∶8,COD/TN7.27,3.73,,。2,COD,TNCOD/TN,COD/TN,CODTN,COD/TNTN。,,5%,,CO2,。,。,,,,,。2.2COD/TPTPCOD/TPTP3。3,COD/TP42.67,TP,36.98%,1TPTNCODNH3-NPO43-pH45.5150.03001007.85.055.033034.13.57.95.952.3238.640.45.07.6:pHmg/L。20——2009-09,29(9),:CODCODTP480mg/L11.25mg/L。COD/TP12.3142.67,COD560mg/L480mg/L,TP45.5mg/L11.25mg/L,TP。,COD,,COD/TP,TP。TP,COD,COD,。,TP。。3,COD,COD/TP,TP,,COD/TPTP。2.3,COD560mg/L,(TP=45.5mg/L、TN=150mg/L),4。4,20d,TN。TN,11TN,65.47mg/L,56.35%;18。TP,TP31.92mg/L,28.96%,,,,,,,,。3(1),TN56.35%,TP28.96%。(2),,,,,。(3),、、,,。[][1],,,.[J].,2005,25(3):45-48.[2],.、[J].,2004,24(3):44-46.[3],,,.[J].,2006,(2):39.[4],.[J].,2007,26(3):366-370.[5]ShuL,SchneiderP.JegatheesanV.Aneconomicevaluationofphosphorusrecoveryasstruvitefromdigestersupernatant[J].BioresourceTechnology,2006,97(17):2211-2216.[6]HaiLin,ZhangQingna,LuoHui.Applicationofthree-phaseinnercirculatingaerobicbiologicalfluidizedbedonthesewage[C].Pro-ceedingsofCommemorativeInternationalSymposiumfor70thAn-niversaryofSunchonNationalUniversity,2005:37-38.[7],,.[J].,2007,25(5):25-27.[8],,.[M].:,2002:75-169.[9],,,.A2/O[J].,2006,26(5):722-727.[](1980—),,,。:13811281502,E-mial:liping0685@yahoo.com.cn。[]2009-05-06()21——

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