氨氮吹脱效率影响因素

6220096()JournalofChangshaUniversityofScienceandTechnology(NaturalScience)Vol.6No.2Jun.2009:2008-12-31:(05C231):(1983-),,,,.:1672-9331(2009)02-0088-041,1,1,2,1(1.,410004;2.,515071):,.,:pH;2730252724.4680.38kg/m2m3,pH=11.033002.25m3/m2h,,20mg/L,98%.:;;:X703:AInfluencefactorsaboutammonianitrogenstrippingefficiencyHUANGYong1,HUXu2yue1,WUFang2tong1,YANGChang2qing2,XIEShou2peng1(1.SchoolofWaterConservancy,ChangshaUniversityofScienceandTechnology,Changsha410004,China;2.ShantouDahaoMunicipalConstructionLimitedCompany,Shantou515071,China)Abstract:Inordertostudytheinfluenceofthedifferentfactortotheremovalefficiencyofammonianitrogenaswellasthebestcraftoperationalfactor,usingpolypropylene2stage2ringaspurgingtowerfillings,orthogonalexperimentswereconductedtoinvestigatethein2fluencingfactorsontheremovalefficiencyofammonianitrogen.Theresultshowedthatthesequenceofthedegreesizeofeffectingonammonianitrogenstrippingefficiency,onebyoneinorder,was:pHair/waterratiohydraulicloadammonianitrogenload.Theopti2mumparameterswereasfollowing:watertemperatureis2730,airtemperatureis2527,ammonianitrogenloadoftheinfluentis7501150mg/L,pH=11.0,air/waterra2tiois3300andthehydraulicloadis2.25m3/m2h.Theresultsshowedthatstrippingeffi2ciencyofammonianitrogencouldbehigherthan98%andconcentrationoftheeffluentwasbelow20mg/Lintheoptimumprocessconditions.Keywords:ammonianitrogen;stripping;orthogonaltest,500mg/L,,C/N.,,.62,:,..,.,:pH.,.P.H.Liao[1],pH,pH9.510.5,.[2],:pH11,90min,40,80W.,99%.[3],:pH,:pH=1012,T=30,t=1h,=2000,90%.[4],pH3:pH.,pH,,.,pH,.,,pH4.11.1,pHNH4HCO3NaOH.PVC,,.,,.,,,,.1.,1=135mm,L=2.0m;,2=25mm,;PVCV=300L.1Fig.1StrippingExperimentalequipment:pH,,pHPHSJ-3F,.1.2,pH4.,.2730,2527,L9(34),pH3.1.1Table1TableoforthogonaltestApHB/(kgm2m3)CD/(m3m2h)110.024.4630001.96210.552.4233002.24311.080.3836002.5298()2009622.12.3,4.2Table2ResultoforthogonaltestApHBCD/(mgL-1)/(%)111119.2297.37212227.0497.99313336.1598.244213211.5598.465221314.4798.076232115.8397.897312318.9698.358323118.1398.429331216.5698.563Table3DataanalysisofrangeABCDK1293.60294.18293.68294.00XiK2294.42294.48295.01294.23883.35K3295.33294.69294.66295.12P=(Xi^2)/9R0.580.170.440.3786700.803K1286200.9686541.8786247.9486436.00QT=(Xi^2)K2286683.1486718.4787030.9086571.2986701.896K3287219.8186842.2086824.5287095.81ST=P-QTQi86701.3086700.8586701.1286701.041.0932Si0.500.040.320.234Table4DataanalysisofvarianceABCDET0.500.040.320.230.041.09222228(MS)0.250.020.160.120.02F12.481.107.925.83FF0.01(2,2)=99F0.05(2,2)=19F0.10(2,2)=92.21)pH.13,pH1011,pH:pH.,A3B3C1D2,80.38kg/m2m3,pH11.030002.24m3/m2h,.,,pH.,:NH+4+OH-NH3+H2O.,pH,,,pH,.pH10.5,80%;pH11,90%[5].pH,pH11..:;.,.,.,..,,,.,;,,3000.,,2.24m3/m2h80.38kg/m2m3,98%.4,pH1011,pH4F12.48,1.10,7.92,5.83,F0.05(2,2)=19;=0.10,pHF9.,pH1011,,.,()[68].,.,,,.0962,:[6],,,5,.,.2)NaOH.,pH,NaOH,[12].300L400mg/L,pH10.5,96.0%NaOH1.5kg.:NH4HCO3(17.1%),NH4HCO3,NaOHpH,NaOHNH4HCO3pH,NaOH.,,pH,NaOH.31),:pH.2)pH1011,,.3)2730,2527,24.4680.38kg/m2m3,pH11.033002.24m3/m2h,,20mg/L,98%.[1]PHLiao,Achen,KVLo.Removalofnitrogenfromswinemanurewastewatersbyammoniastripping[J].Biore2sourceTec2hnology,1995,(54):17220.[2],,.[J].,2006,32(3),67269.XUXiao2ming,WANGYou2le,LIYan.Experimentalinvestigationofprocessingconditionsfortreatmentwastewatercontainingammonianitrogenwithultra2sonicstripping[J].JournalofLanzhouUniversityofScienceandTechnology,2006,32(3),67269.[3],,,.[J].,2007,36(9):38240.CHENLi2rong,DAIBao2you,WUWen2qian,etal.Studyonairstrippingofhighconcentrationammoni2acwastewaterinrareearthindustry[J].ChemicalTechnologyandDevelopment,2007,36(9):38240.[4],,,.[J].,2007,36(8):5532555.LILiang,YUDa2wei,GUANXiao2tong,etal.Studyontreatmentofoil2containingwastewaterbyblow2doffmethods[J].LiaoningChemicalIndustry,2007,36(8):5532555.[5],,.()[M].:,2002.ZHANGZi2jie,LINGRong2chen,JINGRu2ling.Thefinalvolumeofdrainingwater(Thefourthedition)[M].Beijing:ChinaBuildingIndustryPublishingCompany,2002.[6],,.[J].,2008,2(8):106221065.HUANGHai2ming,XIAOXian2mig,YAOBo.Ex2perimentalresearchontreatmentofammonianitro2genwastewaterbyammoniastrippinginarareearthsseparationfactory[J].ChineseJournalofEnviron2mentalEngineering,2008,2(8):106221065.[7],,,.[J].,2007,25(3):38240.LIRui2hua,WEIChao2hai,WUChao2fei,etal.Thecon2ditionexperimentandprojectapplicationonpretreatmentcokingwastewaterbyammoniastripping[J].Environ2mentalEngineering,2007,25(3):38240.[8],,.[J].,2004,5(6):51253.WANGWen2bin,DONGYou,LIUShi2ting.Airstrippingtoremoveammonianitrogeninlandfillleachate[J].TechniquesandEquipmentforEnviron2mentalPollutionControl,2004,5(6):51253.[9],,,.[J].,2001,27(6):20224.WUFang2tong,SUQiu2xia,MENGLe,etal.Airstrippingtoremoveammonianitrogeninleachateofurbanrefuselandfillyard[J].WaterandWastewater,2001,27(6):20224.19