反硝化聚磷污泥厌氧释磷影响因素研究徐微

徐　微,吕锡武(东南大学环境工程系,南京210096)　:、MLSS、VFA、,:,,;;,4～6h,。:;;;:X703　　　:A　　　:1671-1556(2009)03-0026-04＊StudyonFactorsInfluencingthePhosphorusReleaseofDenitrifyingPhosphorusRemovalSludgeinAnaerobicConditionXUWei,LUXi-wu(SchoolofEnvironmentEngineering,SoutheastUniversity,Nanjing210096,China)Abstract:ThedenitrifyingphosphorusremovaltechniquescansolveboththeproblemofscarcityofcarbonandtheconflictofSRTbetweenPAOsandnitrobacteria,soithasgoodapplicationforeground.Sincethephosphorusreleaseisthekeyprocessofdenitrifyingphosphorusremoval,itisnecessarytoinvestigatethefactorsthatmayinfluencethephosphorusreleaseprocess.Thispaperdiscussesaseriesofteststhatwereoperatedtostudytheinfluenceoftemperature,MLSS,VFAconcentrationandcarbonsource.Theresultsshowthatthephosphorusreleaserateincreaseswiththerisingoftemperature,buttherelationshipbe-tweenthemisnotlinearandthelong-termimpactoftemperaturestillneedstobeinvestigated.Inacertainrange,enhancingMLSSororganiccarbonconcentrationcanpromotethephosphorusreleaseprocessmarkedly.Inthepracticaltreatmentoflivingsewage,itissuggestedtohaveitstayfor4to6hoursintheanaerobictank,anditwillbefavorabletoaddanacidificationtankbeforetheanaerobictank.Keywords:nitrogenandphosphorusremoval;denitrifyingphosphorusremoval;phosphorusreleaseunderanaerobiccondition;influentialfactors0　　,、,“”(、、),,。、,、。,,,,,,,[1～3]。16　32009　　5　　　　　　　安全与环境工程SafetyandEnvironmentalEngineering　　　　　　Vol.16　No.3May　2009＊:2008-11-19　　:2009-02-10:863(2002AA601012-1A)。:(1977—),,,。E-mail:[e-mail],。“”,,PHB(,β-),,,[4]。。,,。1　1.1　。1,15L/h,、(HRT)5h,HRT8h,HRT2h。,UNI-TANK。3,()85%。1　Fig.1　Configurationofthetwosludgesystems1.;2.;3.;4.;5.;6.;7.,,、、、,1。1　(mg·L-1)Table1　Qualityparametersofrawwater(mg·L-1)CODCrTNSPNH+4-N180～21044～524～625　　,,,。1.2　5～6,30min,1L,,,,0.4μm,(SP)。1.2.1　温度影响试验,。4～9℃、14～17℃、24～26℃、30℃、40℃5。,;。2。2　Table2　Parametersofeachreactorintemperatureinfluencingtest/(℃)MLSS/(g·L-1)pHNaAC-COD/(mg·L-1)1#4～95.227.22#14～175.227.33#24～265.237.2NaAC1504#305.257.15#405.217.31.2.2　污泥浓度影响试验(MLSS),MLSS。5,3。3　Table3　ParametersofeachreactorinMLSSinfluencingtest/(℃)MLSS/(g·L-1)pHNaAC-COD/(mg·L-1)1#1.717.22#3.067.33#23～247.137.2NaAC1504#10.707.35#14.267.31.2.3　进水VFA浓度影响试验(VFA),,VFA,27第3期　　　徐　微等:反硝化聚磷污泥厌氧释磷影响因素研究　　　　[5]。,VFA。VFA,VFA70%[6],VFA,4。4　VFATable4　ParametersofeachreactorinVFAconcentrationinfluencingtest/(℃)MLSS/(g·L-1)pHNaAC-COD/(mg·L-1)1#4.527.0502#4.527.01003#24～25.24.537.1NaAC1504#4.557.22005#4.517.22506#4.527.33001.2.4　碳源种类影响试验VFA,,,,()。,,。(NaAC)、、、()4,5。5　Table5　Parametersofeachreactorincarbonsourceconcentrationinfluencingtest/(℃)MLSS/(g·L-1)pHNaAC-COD/(mg·L-1)COD1#4.467.2NaAC2502502#26～274.467.1—2503#4.447.2NaAC+1252504#4.477.1—251.22　2.1　2。2:,,。14～17℃、24～26℃、30℃3,,40℃,;40℃,2h,,14～17℃、24～26℃,40℃,4h,,;10℃(4～9℃),DPB(),。,。2　Fig.2　Influenceoftemperatureonphosphorusrelease,,,,,,,,。2.2　3。3:,;,1.71g/L14.26g/L,30min7.01mgPO3-4-P/(gMLSS·h)3.66mgPO3-4-P/(gMLSS·h)。,,,。,7.13g/L,,28　　　　　　　　　　　　　　　　　安全与环境工程　　　　　　　　　　　　　　第16卷3　Fig.3　InfluenceofMLSSonphosphorusrelease;7.13g/L,,,。:,,;,,,。2.3　VFAVFA4。4:VFA,,NaAC-COD200mg/L,NaAC-COD,。NaAC-COD50～200mg/L,,VFA;NaAC-COD200mg/L,,,。,,,,。2.4　5。5:,。,,,160min4　VFAFig.4　InfluenceofVFAconcentrationonphosphorusrelease36.5mg/L,,360min2.2mg/L;,,160min17.6mg/L,360min25.7mg/L。,(CSTR),,HRT4～6h。5　Fig.5　Influenceofcarbonresourceonphosphorusrelease5:(1#)(3#),,,VFA,,,,。,,4hCOD0.5～0.6。(33)29第3期　　　徐　微等:反硝化聚磷污泥厌氧释磷影响因素研究　　　　。3　　(1)Fenton:H2O218mL/L,3,pH3,FeSO4·7H2O0.5%,100min。(2),Fen-ton,,。:[1].[J].,2002,22(5):63-65.[2],,,.[J].,2004,12(3):136-140.[3],,,.UV/Fe3+/H2O2X-GN.[J],2006,25(3):194-198.[4]Wang,Q.,A.T.Lemley.Kineticmodelandoptimizationof2,4-DdegradationbyanodicFentontreatment[J].Environmen-talScience&Technology,2001,35:4509-4514.[5].Fenton[J].,2002,18(3):14-17.[6].Fenton[J].,2001,17(3):1-3.[7],,.Fenton·OH[J].,2003,4(5):12-14,33.[8]Lin,S.H.,L.O.Choc.FentonfortreatmentofDesizingWastewater[J].Environ.Sci.Health,1995,(A30):277-283.[9]Yoon,J.,Y.Lee.InvestigationofthereactionpathwayofOHradicalsproducedbyFentonoxidationintheconditionsofwastewatertreatment[J].WaterSci.Technol.,2001,44(5):15-21.[10]Dietrick,B.M.,V.A.Dean,E.M.Jon,etal.Degradationofeth-yleneglycolinphotoFentonsystems[J].WaterRes.,2000,34(8):2346-2354.[11],,.Photo-Fenton[J].,2000,18(4):357-365.[12],,,.-[J].,2000,20(2):9-15.:(1963—),,,、、。E-mail:[e-mail](29)3　　(1),,,。(2),,;,,,,。(3),,,。(4),,4～6h;4hCOD0.5～0.6;,,,。:[1],.[J].,2003,19(9):32-34.[2],,,.[J].,2004,20(6):16-18.[3]Hu,J.Y.,S.L.Ong,W.J.Ng,etal.Anewmethodforcharac-terizingdenitrifyingphosphorusremovalbacteriabyusingthreedifferenttypesofelectronacceptors[J].WaterResearch,2003,37:3463-3471.[4],,.MLSS、pHNO-2-N[J].,2005,21(6):47-51.[5],.[M].:,1998.[6],,.VFA[J].,2005,21(6):288-291.:(1954—),,,,、。E-mail:[e-mail]33第3期　　　　　　彭陵文等:Fenton氧化法预处理垃圾渗滤液试验研究