后置反硝化MBR工艺强化污水脱氮研究

第02期工业技术创新IndustrialTechnologyInnovation140141第02期140141后置反硝化-MBR工艺强化污水脱氮研究王智鹏1，崔志广2，苑海涛1，董欣杨1（1.核工业北京化工冶金研究院，北京，101149；2.中国电子信息产业发展研究院，工业节能与环保研究所，北京，100846）摘要：后置反硝化MBR新工艺结合后置反硝化技术与MBR技术处理污水强化脱氮效果可达85%以上出水满足城镇污水处理厂污染物排放标准一级A标准研究证实新工艺脱氮主要存在两种反硝化形式其中同步硝化反硝化脱氮贡献率在70%左右内源反硝化脱氮贡献率在30%左右新工艺让同步硝化反硝化得到充分的发挥同时有效的加强了内源反硝化在污水深度脱氮方面具有很好的前景关键词：后置反硝化污水脱氮中图分类号：X703.1文献标识码：A文章编号：2095-8412(2015)02-140-05工业技术创新URL:http//引言工业技术创新第02卷第02期2015年4月IndustrialTechnologyInnovationVol.02No.02Apr.2015AStudyonNutrientRemovaloftheTechnologyofPostDenitrificationMBRforSewageTreatmentZhipengWang1,ZhiguangCui2,HaitaoYuan1,XinyangDong1(1.BeijingResearchInstituteofChemicalEngineeringandMetallurgy,CNNC,Beijing,101149,China;2.ChinaCenterforInformationIndustryDevelopment(CCID)academyofMIIT,Beijing,100846,China)Abstract:ThenewtechnologyofpostdenitrificationMBRcombinespostdenitrificationwithMBRfordomesticsewagetreatment,nitrogenremovalcanupto85%,effluentcanmeetthedischargestandardofpollutantsformunicipalwastewatertreatmentplantofaclassA.Studieshaveconfirmedtheexistenceoftwomajordenitrificationformsonnewtechnology,contributionofsimultaneousnitrificationanddenitrificationratesisabout70%andcontributionofendogenousdenitrificationrateisabout30%.Thenewtechnologyhasfullpromotedsimultaneousnitrificationanddenitrification,atthesametimehaseffectivelystrengthentheendogenousdenitrification.Intermsofdepthdenitrificationforpollutedwater,thenewtechnologyhasagoodprospect.Keywords:Postdenitrification;Sewage;Nitrogenremoval第02期140141第02期王智鹏等：后置反硝化-MBR工艺强化污水脱氮研究第02期140141Vol.02No.02Apr.2015AbufayedSchroeder[1]MBR[2]7000mg/L0.534mgNO3-N/(mgVSS·d)M.Vocks[3]MBRMBR1试验条件及工艺流程1.1试验用水pH=7.5CODcr270.25mg/L32.02mg/L40.69mg/L1.2试验装置及工艺流程140LMBR0.2m2280mm300322Q=2.5L/hHRT=16hSRT=105d212第02期工业技术创新IndustrialTechnologyInnovation142143第02期1421431.3试验方法GB11894-89GB7481-87HJ/T346-2007GB7483-872试验结果与讨论2.1氮的各种形态在工艺沿程的变化规律330.03mg/L0120.125mg/L0.027mg/L0.009mg/L40.69mg/L4.98mg/L85%34.32mg/L3.26mg/L1DO=3mg/L8.77mg/L1HelmerKunst[4]1mg/LNO3-2323COD50mg/L2.2COD、pH、ORP及DO在工艺沿程的变化规律4CODCOD12COD=40.12mg/LCODCOD54.58mg/LCOD1COD10.64mg/LCOD5634COD第02期142143第02期王智鹏等：后置反硝化-MBR工艺强化污水脱氮研究第02期1421435pHORPpHpH5pHpHBernatK[5]PHBpoly-β-hydroxybutyrate,PHBPHBPHBpHpHCO2pHORPORPORP6DODO34mg/LDODO89mg/L2.3新工艺脱氮形式对总氮去除的贡献率TN△TNNOx-N△NOx-N[6]R1R212HRT=16hSRT=105d12TN△TNTN15pHORP6DO1213NH4-N/(mg/L)78.8343.7212.1510.579.2NO3-N/(mg/L)0.080.5121.913.217.07NO2-N/(mg/L)0.060.080.4100.03NOX-N/(mg/L)0.140.5922.3113.217.1TN/(mg/L)80.6945.9630.5925.6920.64△TN/(mg/L)15.37△NOX-N/(mg/L)6.11R1/%71.55R2/%28.45第02期工业技术创新IndustrialTechnologyInnovation144PB3NOx-N△NOx-NNOx-NNO2-N312R171.55%R228.45%80mg/L71.55%28.45%2NO2-N30.35mg/L12R170.12%R229.88%27.31mg/L70.12%29.88%70%30%3结论1MBR70%30%2MBR85%4.98mg/L,A3参考文献AbufayedAA,SchroederED.KineticsandstoichiometryofSBR/denitrificationwithprimarysludgecarbonsource.J.WaterPollut.ControlFed.,1986,58:398–405.,,,.SBR.,2001,27(5):55-58VocksM,AdamC,LesjeanB,GnirssR,KraumeM.Enhancedpost-denitrificationwithoutadditionofanexternalcarbonsourceinmembranebioreactors.WaterResearch,2005-9,39(14):3360~3368.HelmerC,KorpelaTK.Simultaneousnitrification/denitrificationinanaerobicbiofilmsystem.WaterScienceandTechnology,1998,37(4~5):183-187.BernatK,Wojnowska-BaryaI,DobrzyskaA.DenitrificationwithendogenouscarbonsourceatlowC/NanditseffectonP(3HB)accumulation.BioresourceTechnology,2008,99(7):2410-2418.,,,.MBR-RO.,2009-06,30(6):1674-16792213NH4-N/(mg/L)24.6514.990.3911.6051.295NO3-N/(mg/L)4.530.727.284.951.57NO2-N/(mg/L)000.350.050.03NOX-N/(mg/L)4.530.727.6351.6TN/(mg/L)27.3115.217.236.794.58△TN/(mg/L)7.98△NOX-N/(mg/L)3.4R1/%70.12R2/%29.88[1][2][3][4][5][6]作者简介：王智鹏(1984-)男通信作者硕士研究生工程师研究方向水处理技术及工艺E-mail:[e-mail]崔志广(1979-)男博士高级工程师研究方向工业节能减排政策及技术