反硝化聚磷SBR与微动力曝气组合技术处理猪场废水的研究吕梁

SBR,,,＊(,　310029):,(),SBR(AO)(DNPAO)SBR.,SBR,,,,TN、TPBOD589.08%、86.04%93.88%.SBR,,“-”,TN、TPBOD593.95%、99.26%99.93%.NO-3“”.ORP、pHDO3SBR,.:;SBR;;:X713　:A　:0250-3301(2008)07-1884-06:2007-07-06;:2007-11-09:(863)(2006AA062327);(2007R10040);(05120603):(1985～),,,,E-mail:[e-mail]＊,E-mail:[e-mail]-AccumulatingSBRCombinedwithLow-IntensityAerationTechnologyforPiggeryWastewaterTreatmentLLiang,WANGZhao-de,ZHANGShuai,ZHANGZhi-jian(ResearchCenterofEco-EnvironmentalScience,ZhejiangUniversity,Hangzhou310029,China)Abstract:ThewastewaterfromanimalfarmsinChinaisthreateningthequalityandsecurityoflocalwaterenvironment.Inthelaboratoryscale,atraditionalSBR(AO)andadenitrifyingphosphorus-accumulatingorganisms(DNPAO)sequencingbatchreactor(SBR)inbiologicallyremovingnutrientsandorganicmattersfromswinemanurewereinvestigatedinthisstudy.WhenpiggerywastewaterwasdirectlytreatedwithatraditionalSBR,theefficiencywaslowwithunstableworkingstate,thereductionofTN,TPandBOD5reached89.08%,86.04%and93.88%,respectively.WhileitperformsagoodeffectintreatinghighdensityofpiggerywastewaterusingDNPAOSBRtechnology,withthehelpoflow-densityaeration,two-stepofinfluentfeedingandtwocirculationsofanaerobic-anoxic-anaerobic-anoxic(AnAx2),thereductionofTN,TPandBOD5reachedthemaximumsof93.95%,99.26%and99.93%,respectively.Thespecificoperationof(AnAx2)SBRcontributedbothlowconcentrationsandlimitedexportloadsofNO-3.ThetemporalcurvesofORP,pHandDOovertimecouldbeindicatorsforsimultaneousremovalsofnitrogenandphosphorusalongwithbiodegradationoforganicmatterduringthisspecificSBRrunning.Apilot-scaleinvestigationwasrecommendedtofurthertestifythefeasibilityandefficiencyofthiskindofSBRunderthereal-worldcondition.Keywords:DNPAO;SBR;low-intensity;simultaneousnitrogenandphosphorusremoval　　,SBR[1～8],.SBR,2:;,.SBRSBR,(DNPAOs)[9～23].DNPAOs,[9～13],DNPAOs()NO-3,NO-3N2,.[6,20],“”“”,(0.8～1.0L·min-1),(DO),,,“-”DNPAOs.29720087　　　　　　ENVIRONMENTALSCIENCEVol.29,No.7Jul.,2008DOI:10.13227/j.hjkx.2008.07.024,DNPAOs,;,SBR,,,SBR.,,“-”,DOSBR,SBR,;pH、ORPDOSBR,SBR.1　　　SBR1.(19cm、38cmPVC,、),(、),(、),(、),(),,(ORPpH),(、).1　SBRFig.1　Diagramofthedenitrifyingphosphorus-accumulatingSBRsystem(),,.,,SBR(、、)[6].3,MLSS8000mg·L-1.SBR,8h,(HRT)(SRT)3.3d18d,2～2.5L·min-1.DNPA-SBR,8h,HRTSRT3.3d18d;,0.8～1.0L·min-1.1minORPpHDO,SBR.,.SBR:30min10mL,5000rmin5min,:(TS),(SS),(NH+4-N),(NO-3-N),(TKN),(TP),(DP),(COD),(BOD5).[24].2　2.1　SBR(AO)1.1,TN42.41mg·L-1,89.08%;TP27.66mg·L-1,86.04%;BOD5150mg·L-1,93.88%;COD1750mg·L-1,75.86%.,、.SBR.2.2　SBR2.2.1　,SBR,“-”,,2,18857:SBR2、3.1　(AO-SBR)Table1　ContrastofbasicpropertiesoftheinfluentandtheeffluentusinganAOSBRsystemmg·L-1mg·L-1%NH+4-N809.300100.00NO-3-N049.89—TN846.3092.4189.08TP198.1827.6686.04DP59.4825.9256.42COD7250175075.86BOD5245015093.882　(DNPA-SBR)Table2　Contrastofbasicpropertiesoftheinfluentandtheeffluentusingadenitrifyingphosphorus-accumulatingSBRsystemmg·L-1mg·L-1%TS6090318047.78SS222033085.14TKN13885096.40NH+4-N1205.10.0100.00NO-3-N0.025—TN13388193.95TP148.11.199.26DP46.60.998.07COD800448593.94BOD54440399.932　SBRFig.2　Profilesofthenitrogenouscompounds(NO-3-NandNH+4-N)inliquidphaseinadenitrifyingphosphorus-accumulatingSBRsystem　　2.,,.TN81mg·L-1,93.95%;TP1.1mg·L-1,99.26%;BOD53mg·L-1,99.93%.《》(GB18596-2001),SBR.3　SBRCODFig.3　Profilesofthedissolvedphosphorus(DP)andchemicaloxygendemand(COD)inliquidphaseinadenitrifyingphosphorus-accumulatingSBRsystem2.2.2　N、PCOD2SBR,8h,.,NO-3,,NH+4.,NO-3.,SBR,.“-”SBR,,(),SBR,[25].,,,NO-3“”,COD、BOD5P.3SBR,8h,COD.1,,1,DP,COD()().,ORPDP,.2,,NO-3(2),,NO-31886　　　　　　29.DP,DP.2.2.3　pH、ORPDO,pHORP,pH、ORPDO[26～33].4SBRDO.4:SBR,(DO)1.0mg·L-1,/.:/,,DO0,.30min,,3.0mg·L-1,BOD5.4　SBRDOFig.4　Characteristicsofthedissolvedoxygen(DO)inliquidphaseinadenitrifyingphosphorus-accumulatingSBRsystem　,SVI60,,..5SBRpHORP.,pHORP,.5:,ORPpH、NO-3.,,ORP,ORP-50mV,,,(4).pHORP,pH,pH;,CO2pH,pH,pH.5　SBRpHORPFig.5　CharacteristicsofthepHandORPinliquidphaseinadenitrifyingphosphorus-accumulatingSBRsystem　2.3　SBR,,(),.DO,,.pH、ORPDO3SBR.[7],,300mg·L-10mg·L-1,.,2,(),,NO-3,NO-3.,14,.SBR18877:SBR,(、),.3　　　(1)SBR,,TN42.41mg·L-1,89.08%;TP27.66mg·L-1,86.04%;BOD5150mg·L-1,93.88%.N、P.(2)“-”,SBRTN、TP、BOD593.95%、99.26%99.93%.NO-3””.(3)SBR,;,.,,,,.(4)ORP、pHDOSBR.,,.:[1]　.SBR[J].,2004,17(4):45-47.[2]　,,.(MSBR)[J].,2003,19(5):41-43.[3]　CassidyDP,BeliaE.NitrogenandphosphorusremovalfromanabattoirwastewaterinaSBRwithaerobicgranularsludge[J].WaterRes,2005,39(19):4817-4823.[4]　KishidaN,KimJ,TsunedaS,etal.Anaerobicoxicanoxicgranularsludgeprocessasaneffectivenutrientremovalprocessutilizingdenitrifyingpolyphosphate-accumulatingorganisms[J].WaterRes,2006,40(12):2303-2310.[5]　ZhuJ,ZhangZ,MillerC.ALaboratoryScaleSequencingBatchReactorwiththeAdditionofAcetatetoremoveNutrientandOrganicMatterinPigSlurry[J].BiosystemsEngineering,2006,93(4):437-446.[6]　ZhangZ,JunZ,JenniferK,etal.Atwo-stepfedSBRfortreatingswinemanure[J].ProcessBiochemistry,2006,41(4):892-900.[7]　ObajaD,MaceS,CostaJ,etal.Nitrification,denitrificationandbiologicalphosphorusremovalinpiggerywastewaterusingasequ