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当前位置:首页 > 商业/管理/HR > 质量控制/管理 > 常温城市生活污水半亚硝化试验研究韩煦
Vol.35 2009235 韩 煦 李 冬 张 杰(, 100124) 以低氨氮(60~80mg/L)、常温(22~26℃)城镇生活污水经A/O工艺后的出水为原水,利用双抑制因素快速启动半亚硝化系统,采用单抑制因素控制运行,出水能够实现NH3—N/NO-2—N=1∶1,为ANAMMOX提供了适宜的进水。试验表明,通过DO(0.1~0.3mg/L)和高游离氨(7mg/L)共同的抑制作用,能够快速启动半亚硝酸型硝化(15d)。启动成功后在低溶解氧下实现半亚硝化的稳定运行,亚硝酸盐积累速率最高达到4.32mgNO-2—N/(L·h)。 半亚硝酸型硝化 厌氧氨氧化 快速启动 抑制因素0 ,,,NH3—N/NO—2-N1∶1,ANAMMOX。NH3—N/NO-2—N=1∶1,。,、、SRT、pH[1~5]。,1molNH+42molHCO-3,HCO-3/NH+4=1∶1[6]。,SBR、、pH、SRT。SHARON。,SHARONANAMMOX[7~19]。(、、)。。。,,,COD。1 1.1 SBR,5L,,1。,。,。1 1.2 A/O,:CODCr30~40mg/L,NH3—N60~80mg/L,NO-2—N1mg/L,NO-3—N1mg/L,pH7.8~8.1,300~400mg/L。,CODCr110mg/L。CODCr,CODCrDOI:10.13789/j.cnki.wwe1964.2009.s1.001236 Vol.35 2009,。1.3 A/O,(22~26℃),DO=0.1~0.3mg/L[13]。:①。(DO),DO,,,[9~12]。,,(2.1);②。,。NH4HCO3,NH3—N160~200mg/L,(FA7mg/L),;③。,,DO(0.1~0.3mg/L),NH3—N/NO-2—N1∶1。,NH3—N:;NO-2—N:N—(1—)—;NO-3—N:;COD:;DO:(WTW);pH:pH;MLSS:103~105℃。2 2.1 (DO),,。1.5L,MLSS=3580mg/L。10h,,,。,DO=0.1~0.3mg/L,8h,1.5h,0.5h,2.5L。,,DO0.1~0.3mg/L[13]。,0.2~0.4mg/L,1.2~1.5mg/L,[22]。2,,,。,60mg/L,1mg/L。2 ,:①,,。,,。②,,。③[8]。DO。2.2 (DO、FA),NH4HCO3,。pHNH3(FA)NH+4。FANH+4,(1):NH3+H2ONH+4+OH-(1)FApHNH3—N,AbelingSeyfried(2)[8]: Vol.35 2009237 FA=17×[NH3—N]×10pH14×KbKa+10pH(2)Kb———,25℃Kb=10-4.8;Ka———,25℃Ka=10-14。pH=7.8,(2),NH3—N160mg/L,(FA)7mg/L。,(FA7mg/L),15d,。3(15d,,13d)。,,5mg/L。2d,,,。,NH3—N160~200mg/L,(FA),FA7.1~9.4mg/L,。,40mg/LNO-2—N,6.25mgNO-2—N/(L·h)(11)。,(FA7)。3 ,、。,,,DO=0.1~0.3mg/LFA7mg/L,,,,,,,。,,,,。2.3 ,4(2,,41d)。,NH3—NNH3—N30%~50%。NO-2—NNH3—N1∶1,,2。4 5(5 25238 Vol.35 200925d)。,NO-2—NNH3—N1∶1,4.32mgNO-2—N/(L·h)。,pH,。,,HRTCOD。2.3.1 HRT,(SRT)(HRT)。,,,。,2.5L,。,(HRT)(T)。T6hHRT0.5d,T8hHRT0.67d,T12hHRT1d。,(T)(HRT)0.5~1d。HRT;,NH3—N/NO-2—N=1∶1。,1~15,12h,HRT1d,NH3—N50%,NO-2—N,50%。,NO-3—N,,。,,,NH3—N/NO-2—N=1∶1,HRT。4,15~2012h,NH3—N,NO-3—N。21T=8h,。2.3.2 COD,COD。,15~20,CODCr,CODCr120mg/L。,CODCODCr,6。6 CODCr6,(TN),CODCr,,,15mgN/(L·d)。6,,15mg/L。,COD,,,K(),,。,,,,SS(3d110mg/L),。3 (1):,;HRT,。,HRT。,,。(2), Vol.35 2009239 NO-3—N,,。,。(3),CODCr,,,。,CODCr,,。,,。CODCr,。4 (1),DO=0.1~0.3mg/LFA7mg/L,6.25mgNO-2—N/(L·h)。DO,50%NH3—N50%NO-2—N,4.32mgNO-2—N/(L·h)。(2)HRT。(3),。(4)CODCr,。,。,,CODCr。参考文献1 ..,1999,25(7)2 ThirdK,SliekersOA,KuenenJG,etal.TheCANONsystem(completelyautotrophicnitrogenremovalovernitriteinonesinglereactor)underammoniumlimitation:interactionandcompetitionbetweenthreegroupsofbacteria.SystemApplMicrobiol,2001,24:588~5963 ,,.A/O.,2002,18(5):5~84 ,,,.—.,2002,28(6):6~115 ,,..(),2004,20(3)6 ..:,20067 VanKempenR,HaveCCR,MeijerSCF,etal.SHARONprocessevaluatedforimprovedwastewatertreatmentplantnitrogeneffluentquality.WaterSciTechnol,2005,52:55~628 CiudadG.,RubilarO.,Mun'ozP.,etal.Partialnitrificationofhighammoniaconcentrationwastewaterasapartofashortcutbiologicalnitrogenremovalprocess.ProcessBiochemistry,2005,40:1715~17199 ,,..,2005,21(9):89~9110 .-.,2006,26(5):798~80211 ..,2007,33(12):53~5712 GallA,DostaJ,vanLoosdrechtMCM,etalTwowaystoachieveananammoxinfluentfromrealrejectwatertreatmentatlab-scale:PartialSBRnitrificationandSHARONprocess.ProcessBiochemistry.2007,42:715~72013 ,,..,2005,31(10):32~3714 CiudadG,WernerA,BornhardtC.Differentialkineticsofammoniaandnitrite-oxidizingbacteria:Asimplekineticstudybasedonoxygenaffinityandprotonreleaseduringnitrification.ProcessBiochemistry,2006,41:1764~177215 ,,..,2007,27(3):1574~158216 PenYZ,GaoSY.WangSY.PartialNitrificationfromDomesticWastewaterbyAerationControlatAmbientTemperature.ChinJChemEng,2007,15(1):115~12117 DongZQ,SunTH.Potentialnewprocessforimprovingnitrogenremovalinconstructedwetlands-Promotingcoexistenceofpartial-nitrificationandANAMMOX.EcologicalEngineering,2007,(31):69~7818 CamposJL,GarridoJM,Mosquera-CorralA.Stabilityofanitrifyingactivatedsludgereactor.BiochemicalEngineeringJournal,2007,(35):87~9219 CiudadG,Gonza′lezR,BornhardtC,etal.ModesofoperationandpHcontrolasenhancementfactorsforpartialnitrificationwithoxygentransportlimitation.WaterResearch,2007,(41):4621~462920 ,,..(),2004,30(3):241~246 &E-mail:hanxu@emails.bjut.edu.cn:2008-11-11
本文标题:常温城市生活污水半亚硝化试验研究韩煦
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