ABR生物接触氧化工艺处理低碳氮比生活污水试验黄继国

　40　520109　　　　　　　()JournalofJilinUniversity(EarthScienceEdition)　　　　　　　Vol.40　No.5Sep.2010　　ABR-生物接触氧化工艺处理低碳氮比生活污水试验黄继国1,高文翰1,董莉莉1,孟玉丽2,周　秀1,杨　柳11.,　1300262.,　130021:近年来,城市生活污水呈现出低碳氮比的趋势,造成污水处理脱氮困难。采用ABR-生物接触氧化工艺对低碳氮比生活污水进行试验研究,确定了试验运行参数,即在进水COD/N为2～7范围内,当HRT=10h,R=2.5、T=30℃时,系统对TN的去除效果良好;TN的平均去除率随着碳氮比的减小而迅速降低,此时,碳源不足成为制约脱氮效果的主要原因;在最佳运行条件下,当进水COD/N为6～7时,TN平均去除率达到80%以上,出水TN质量浓度小于15mg/L,满足《城镇污水处理厂污染物排放标准》一级A标准。:ABR;生物接触氧化;低碳氮比;脱氮:P641.69;X703　　　:A　　　:1671-5888(2010)05-1163-07:2010-01-15:(20777027);(200805045):(1967—),,,,,Tel:[phone],E-mail:[e-mail]。ExperimentonLowC/NRatioDomesticWastewaterTreatmentbyABR&BiocontactOxidationProcessHUANGJi-guo1,GAOWen-han1,DONGLi-li1,MENGYu-li2,ZHOUXiu1,YANGLiu11.CollegeofEnvironmentandResources,JilinUniversity,Changchun　130026,China2.ChinaNortheastMunicipalEngineeringandResearchInstitute,Changchun　130021,ChinaAbstract:Inrecentyears,thereisatrendoflowC/Nratioinmunicipaldomesticwastewater,whichresultsinseriousproblemsofdenitrificationofwastewater.ThispaperpresentstheexperimentalstudyonABR&BiocontactOxidationProcesstotreatlowC/Nratiodomesticwastewater,determinestheexperimentaloperatingparameters,andtheresultshowsthatintherangefrom2to7oftheCOD/Nratioofinfluent,whenHRT=10h,R=2.5,T=30℃,theremovalrateofTNshowsthesatisfactoryperformance.TheaveragedenitrificationratedecreasesrapidlyastheCOD/Nratioofinfluentreduce,whichisduetothelackofcarbonsource.Underthesatisfactoryoperatingconditions,whentheCOD/Nratioofinfluentis6-7,theaveragedenitrificationratereachesmorethan80%,andtheconcentrationofTNineffluentislowerthan15mg/L,whichmeetsthefirstAstandardofDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlant.Keywords:ABR;biocontactoxidation;lowC/Nratio;nitrogenremovalDOI:10.13278/j.cnki.jjuese.2010.05.0120,,,,[1-2]。,[3]。,COD/N()7.1∶1[4]。,COD/N8。,。、,,,[5]。,(anaerolicbaffledreactor,ABR)、、、、[6],;。ABR,[7],。ABR-,。11.1ABR-,1。,60cm,15cm,35cm,30cm,5cm。25L,5。3ABR,,;2,,,。,ABR,R。,,30L。1Fig.1Theschematicdiagramofexperimentalfacility1.;2.;3.;4.;5.;6.;7.;8.;9.;10.;11.;12.;13.;14.;15.;16.;17.;18.1.2,,1～2,,。1。1Table1　Thequalityofexperimentalwater/(mg·L-1)225～309NH4Cl188～268K2HPO41NaHCO3800MgSO4·7H2O20CuSO4·5H2O0.05FeSO4·7H2O2.0CoCl2·2H2O0.12MnSO4·H2O3.0ZnSO4·7H2O0.10CaCl2302。,。COD/N5。1164　　()　　　　　　　　　　　　　　40　2.1A/O15L,,1。,,。25℃,3。,、,。10d。ABR,,10cm,。2.2A/O15L,,,,3。,。25℃。,15d。。3,,(HRT),COD。COD/N5,T=25℃,R=2。35d,(1～15d)、(16～25d)(26～35d)3。CODTN2、3。2,COD230～330mg/L。,COD,,,,,,COD。,,COD,COD79%。,1mm,,,2CODFig.2TheconcentrationandtheremovalratesofCODininfluentandeffluentwithtime3TNFig.3TheconcentrationandtheremovalratesofTNininfluentandeffluentwithtimeCOD88%。,,,,COD,3592.5%,COD22mg/L。,。HRT2。HRT,COD。HRT16h10h,COD0.45kg/(m3·d)0.720kg/(m3·d),COD,80%,88%;,。HRT10h8h,COD0.720kg/(m3·d)0.899kg/(m3·d),COD,92%,COD。1165　5　　　　　　　　　,:ABR-3,,TN,25%,TN41mg/L。,TN,2558.2%。,TN,69.4%,TN19mg/L。,TN。,COD/N≥8,。,TNTN。4,,HRT、,,ABR-。4.1HRT25℃,2,,HRT4～12h,HRT,CODTN,。4。4HRTCOD、TNFig.4　ChangesofaverageremovalrateofCODandTNwithdifferentHRT4,COD,80%,95.6%;TN。HRT,,。,HRT,。,COD,,,TN。4,T=25℃、R=2,HRT=10h,TN,68.2%。4.225℃,10h,,1～3.5,CODTN,,。5。5COD、TNFig.5ChangesofaverageremovalrateofCODandTNwithdifferentrefluxratio5,COD,85%～95%,COD,50mg/L。TN,。2、2.53,TN68.9%、69.8%60.7%,TN1166　　()　　　　　　　　　　　　　　40　18.65、18.09、19.56mg/L。,,;,,,。TN,,,,。5,T=25℃、HRT=10h,R=2.5,TN,69.8%。4.3HRT12h2.5,,10～30℃,,CODTN,,。6。6COD、TNFig.6ChangesofaverageremovalrateofCODandTNwithdifferenttemperature6,CODTN。,。,,,,。,[8-9],5～40℃,20～30℃,15℃,。。20～35℃,15℃。,。30℃,。6,HRT=10h、R=2.5,30℃,TN,74.3%。,HRT4～12h、R1～3.5,T10～30℃,HRT=10h,R=2.5,T=30℃。4.4COD/N,COD/N,COD/NTN。7。7COD/NTNFig.7ChangesofaverageremovalrateofTNwithdifferentCOD/Nratio7,TN。COD/N5,TN。COD/N2～4,TN60%;COD/N2,TN39.5%,。,ABR-COD/N。。1167　5　　　　　　　　　,:ABR-,,。,、、BOD5∶N∶P=100∶5∶1,、、BOD5∶N∶P=100∶6∶1。COD/N5,,。,COD/N,,。,。COD/N4,TN70%。COD/N5,TN71.3%,TN20mg/L。COD/N6～7,TN80%,82.1%,TN15mg/L,《》(GB18918-2002)A[11]。,,COD/N,80%。,。5(1),COD/N≈5、R=2、T=25℃,HRT,。,COD92.5%,COD22mg/L;TN69.2%,TN19mg/L。(2),。:HRT=10h,R=2.5,T=30℃。(3)TN,COD/N2～4,TN,,,。COD/N5,70%,TN20mg/L。COD/N6～7,80%,TN15mg/L,《》(GB18918-2002)[11]A。(References):[1]　,,,.[J].,2007,29(4):293-296.ZHOUYan,PUWen-hong,YANGChang-zhu,etal.Self-formingdynamicmembranebioreactorfortreatmentoflowC/Nratiowastewater[J].EnvironmentalPollution&Control,2007,29(4):293-296.[2]　,,.A2/OC/N[J].,2008,59(12):3126-3131.WUChang-yong,PENGYong-zhen,PENGYi.BiologicalnutrientremovalinA2/OprocesswhentreatinglowC/Nratiodomesticwastewater[J].JournalofChemicalIndustryandEngineering,(China),2008,59(12):3126-3131.[3]　MichaudL,BlanchetonJP,BruniV.Effectofpar-ticulateorganiccarbononheterophicbacterialpopulationsandnitrificationefficiencyinbiologicalfilters[J].AquaculturalEngineering,2006,34(3):224-233.[4]　CarreraJ,VicentT,LafuenteJ.EffectofinfluentCOD/Nratioonbiologicalnitrogenremoval(BNR)fromhigh-strengthammoniumindustrialwastewater[J].ProcessBiochemistry,2004,3(9):2035-2041.[5]　,,,.[J].,2004,25(3):73-77.WANGZhi-hui,WANGShu-ying,PENGYong-zhen,etal.On-linecontrolofexternalcarbonadditiontopredenitrificationprocess[J].Environm