常温下连续流短程硝化反硝化研究陈英文

:,,1978,,,。＊“863”(No.2006AA02Z211);(No.BK2006181、No.BK2007188);(No.2007020)。常温下连续流短程硝化反硝化研究＊陈英文　陈　徉　沈树宝(,　210009)　　　(26～30℃),。,、NH+4-N50mg/L、pH7.5～8.0、0.3L/min、4h,NO-2-N/(NO-3-N+NO-2-N)0.677,TN35%;,pH,1∶2、2h、2∶1,TN86.9%,COD92.7%;pH,。　　　　　　Continuousflowshortcutnitrification-denitrificationatambienttemperature　ChenYingwen,ChenYang,ShenShubao.(Col-legeofLifeScienceandPharmaceuticalEngineering,NanjingUniversityofTechnology,NanjingJiangsu210009)Abstract:　Alabscalecontinuousflowshortcutnitrification-denitrificationA/Osystemwasemployedfortrea-tingtheartificalmunicipalwastewater.Theeffectsofoperatingparameters(ammonialoading,HRT,A∶Ovolumeratio,recyclerate)onthetreatmentperformanceweredetermined.Operatingat26-30℃,feedammoniaconcentra-tionof50mg/L,HRTof4hinaerobiczoneandairflowof0.3L/min,theratioofNO-2-N/(NO-3-N+NO-2-N)reached0.677;however,theremovalefficiencyofTNwasabout35%.Whenthevolumeratioofthepre-denitrifica-tion(A)zonetotheaerobic(O)zonewas1∶2andoperatingatarecycleratioof2∶1,theTNremovalwentupto86.9%while92.7%ofCODwasalsoremoved.TheresultsshowthatpH,anindicatoroftheinstantaneoussystemperformance,isanusefulparameterforrealtimecontrolofthetreatmentoperations.Keywords:　continuousflow;shortcutnitrification-denitrification;municipalwastewater;HRT　　,。NH+4-N,[1-3]。、,NH+4-NNO-2-NNO-3-N,,NO-2-N,。,[4],[5]。(26～30℃),,,。1　1.1　试验装置　　1。,3L,。,,;,。,,COD,TN。30min5min。1　Fig.1　SchematicdiagramoftheA/Otreatmentsystem1.2　试验材料　　:0.34g/L、·6·　　30　4　20084DOI:10.15985/j.cnki.1001-3865.2008.04.0240.24g/L、0.17g/L、0.01g/L、0.1g/L、0.047g/L,pH6.9～8.0,NH+4-N50mg/L。　　。　　NP-07。,NO-2-NNO-3-N,。1.3　分析方法　　NH+4-N;NO-3-N;NO-2-NN-(1-)-;COD;pHpH[6]。1.4　试验过程1.4.1　3.0g/L,0.3L/min(0.2～0.4mg/L、1.2～1.5mg/L[7]),,(HRT)6h,(SRT)15d,pH7.5～8.0,NH+4-N、NO-3-N、NO-2-N。　　,HRT。1.4.2　　　NP-07,0.3L/min、HRT4h、、、pH7.5～8.0。1.4.3　　　、0.3L/min、HRT4h、,HRT1、2、3h,(R)1∶1、2∶1、3∶1,。1.4.4　pH　　1.4.3,、HRT4h、0.3L/min、,pH。1.4.5　NH+4-N　　3.0g/L、HRT2h、HRT4h、0.3L/min、SRT15d、,,NH+4-N30～100mg/L,。2　2.1　亚硝化污泥　　NH+4-N、NO-3-N、NO-2-N2。2,(1),NO-3-NNO-2-N,NO-2-N/(NO-3-N+NO-2-N)(η)0.245。,pH,NO-2-N,NO-2-N。NH+4-N,,,NH+4-N;(2)4,,NH+4-N,η;(3)8,η0.677,,。2　Fig.2　Concentrationprofilesoftheacclimationofthenitrificationsludgeculture　　HRT3。33　HRTFig.3　EffectofHRToftheaerobiczoneontheshortcutnitrificationtreatmentperformance·7·　,HRT4h,NH+4-N2mg/L;HRT4～6h,NH+4-N2mg/L,η;HRT,NH+4-N0mg/L,η。HRTNO-2-N,HRT4h。2.2　短程硝化反硝化污泥　　NH+4-N、NO-2-N、NO-3-NTN4。4,(1),NH+4-N,NO-2-NNO-3-N;(2)NP-073d,TN10%;,7dTN20%。NO-2-NNO-3-N;(3)14d,,TN35%;(4)NO-3-NNO-2-N。,NO-3-N,NO-2-NNO-3-N,。,TN,,。,,NO-2-NNO-3-N。4　Fig.4　Concentrationprofilesoftheacclimationoftheshortcutnitrification-denitrificationsludgeculture2.3　回流强化短程硝化反硝化的条件研究　　R。R,R,,HRT,HRTR,HRTR。,HRT,TNCOD,5。5　HRTRTNCODFig.5　EffectsofHRTandRontheremovalsofTNandCOD　　5,R,HRT2h,TNCOD;R=2∶1,TNCOD。HRT4h,1∶2。,HRT2h、R=2∶1、HRT4h,TN86.9%,COD92.7%。2.4　短程硝化反硝化过程中的pH　　pH6。6,pH6.9～8.0,pH9.0,pH,7.5～8.0。,pH,,NO-3-NNO-2-N、COD,pH。6　pHFig.6　pHprofilesofthefeedandthetwotreatmentzonesoftheshortcutnitrification-denitrificationsystem·8·　　30　4　20084,NH+4-N,,pH。,;pH7.5～8.0,。,pH,。2.5　进水NH+4-N负荷　　,NH+4-N30～100mg/L,,pH,6.9～8.0。NH+4-N30～100mg/LTN、COD7。7,NH+4-N,TN,COD。,,NH+4-N,TN。COD,,COD。7　NH+4-NFig.7　EffectofNH+4-NloadingontheremovalsofTNandCOD3　　　　(1)、0.3L/min、、pH7.5～8.0,,η0.677。(2)NP-07,,3.0g/L、0.3L/min、HRT4h、、,TN35%。,pH,HRT2h、R2∶1、1∶2,TN86.9%,COD92.7%。　　(3)pH,。　　(4)NH+4-N,TN,COD。[1]　TATSUOS,KAZUICHII,HAJIMEI,etal.Nitrogenremovalfromwastewaterusingsimultaneousnitratereductionandan-aerobicammoniumoxidationinsinglereactor[J].JournalofBi-oscienceandBioengineering,2006,102(4):346-351.[2]　TAMLS,TANGATW,LAUGN,etal.ApilotstudyforwastewaterreclamationandreusewithMBR/ROandMF/ROsystems[J].Desalination,2007,202(1/3):106-113.[3]　,,,.[J].,2007,23(2):17-21.[4]　,,,.[J].,2006,28(4):254-256.[5]　,,,.A/O()[J].,2006,26(5):703-709.[6]　《》.[M].3.:,1989.[7]　,.[J].,2003,19(7):1-4.责任编辑:黄　苇　(:2007-12-10)(上接第5页)[20]　,,.[J].,2006,28(6):425-428.[21]　VANDERSLOOTHA,KOSSONDS,HJELMARO.Charac-teristics,treatmentandutilizationofresiduesfrommunicipalwasteincineration[J].WasteManagement,2001,21(8):753-765.[22]　AUBERTJE,HUSSONB,VAQUIERA.Useofmunicipalsolidwasteincinerationflyashinconcrete[J].CementandConcreteResearch,2004,34(6):957-963.[23]　COLLIVIGNARELLIC,SORLINIS.Reuseofmunicipalsolidwastesincinerationflyashesinconcretemixtures[J].WasteManagement,2002,22(8):909-912.[24]　SAKAIS,HIRAOKAM.Municipalsolidwasteincineratorresiduerecyclingbythermalprocess[J].WasteManagement,2000,20(2/3):249-258.[25]　YOSHIIER,NISHIMURAM,MORITOMIH.Influenceofashcompositiononheavymetalemissionsinashmeltingprocess[J].Fuel,2002,81(10):1335-1340.[26]　,,,./[J].,2005,27(4):9-43.[27]　,,.[J].,2007,20(2):45-48.[28]　,,,.[J].,2005,26(6):180-185.[29]　.[J].,2004(11):1-4.[30]　.[D].:,2003.[31]　,,,.[J].,2006,17(3):220-223.[32]　,,,.[J].,2004,12(1).[33]　,,,.[J].:,2004,32(12):1656-1660.[34]　,.[J].,2007,28(2):445-448.[35]　.[D].:,2002.[36]　,,,.[J].,2005,23(4):56-60.[37]　.、[D].:,2004.责任编辑:赵　多　(:2007-11-07)·9·