低CN比条件下曝气生物滤池深度脱氮常会庆

92Vol．9No．220152ChineseJournalofEnvironmentalEngineeringFeb.2015C/N12111．4710032．100085C/N、、C/N。2mL/min0.49～1.02mg/L2.89～7.48mg/LC/N50%。60%C/N。C/NC/N。X703A1673-9108201502-0725-06AdvancednitrogenremovalofbiologicalaeratedfilterunderlowC/NratiosChangHuiqing12GuoDayong1WangHao11．DepartmentofEnvironmentandＲesourceHenanUniversityofScienceandTechnologyLuoyang471003China2．DepartmentofWaterPollutionControlTechnologyＲesearchCenterforEco-EnvironmentalSciencesChineseAcademyofSciencesBeijing100085ChinaAbstractThepurposeofthisstudywastoachieveadvancednitrogenremovalofbiologicalaeratedfilterunderlowC/Nratioandtoprovidetheoreticalreferencesforremovalofnitrogenatlowcarbonconcentrationandenergyconsumptionconditions．Theexperimentstudiednitrogendynamicchangeandremovaleffectinbiologicalaeratedfilterusingartificialwastewateranddeterminedoptimaloperatingconditionsandparameterswhenaera-tionratewas2mL/minDOwas0.49～1.02mg/Landnitriteconcentrationwas2.89～7.48mg/LduringwholeoperationperiodnitriteaccumulationratewashigheratC/Nratioof1andthevaluewasmorethan50%．Theremovalrateoftotalnitrogenremainedatmorethan60%achievedadvancednitrogenremovalunderlowC/Nratio．Throughtheaerationregulationofthebiologicalaeratedfilterachievednitriteaccumulationpro-videdadvancednitrogenremovalconditionforthewastewateroflowC/Nratioandthebasisfornitrogenremovalofcitytailwater．Keywordsadvancednitrogenremovalbiologicalaeratedfilternitriteaccumulationnitrogenremoval11K08ESPCＲKZCX1-YW-06-012014－01－072014－02－211974—。[e-mail]。21HNO22。A/OA2/O3456SBＲ78。HNO2910。TN1112。、pH、DO1314。C/NC/N9C/NA7.52.515。。C/NC/N、。11．1A2/O。NH4Cl、NH+4-N25mg/LCOD25mg/LC/N1。KH2PO4TP2mg/LpH7.5。CuCl230μg/LH3BO350μg/LZnCl250μg/LNH46Mo7O24·4H2O50μg/LCoCl2．6H2O50μg/LNiCl250μg/L。1．2。。331NH+4-N、CODTP25、252mg/L0．5mL/min2NH+4-N、CODTP25、252mg/L2mL/min3NH+4-N、CODTP25、252mg/L4mL/min340d2d。1．3NH4-NNO3-NNO2-NN-1---TN-DOpH510-precisionpHmeterpHCOD。=/+×100%。=/×100%、。1．431。40cm6cm。、0．32mm。50mL/h。1Fig．1Schematicdiagramofexperimentalset-up22．1NH+4-N2NH+4-N。3NH+4-N40dNH+4-N0.50～1.17、0.20～4.4810.14～18.05mg/LNH+4-N95.31%～98.00%、82.07%～97.11%27.00%～59.44%2。1、23NH+4-N。NH+4-NNH+4-N。2．2336272C/N2NH+4-NFig．2Concentrationchangeandremovalrateofammoniumnitrogen7.93～16.03、0.53～2.631.73～3.83mg/L。3177%2330%。12、3。3Fig．3Concentrationchangeofnitrateandnitrificationrate2．34。30.32～1.71、2.89～7.481.21～5.98mg/L。23。2。111%250%～90%340%～70%。322。HNO250%16。4Fig．4Concentrationchangeofnitriteandnitriteaccumulationrate2．45。10.42～18.94、5.97～9.7516.05～23.63mg/L。24.26%～58.23%、60.16%～76.12%7.34%～35.96%72795。260%2。5Fig．5ConcentrationchangeandremovalrateofTN2．5pHDO6pHDO。pHpH7pH8HNO26pHDOFig．6ConcentrationchangeofpHandDOHNO2。3pH6.57～7.34、7.54～8.237.02～7.70。2pHpHHNO2。=DO1.5mg/L17。1.78～2.67、0.49～1.020.26～0.61mg/L。2HNO2。2．6COD7COD。C/NCOD18。COD312COD。12COD7COD22COD2。3COD64%～92%、68%～96%48%～88%2COD。7CODFig．7ConcentrationchangeandremovalrateofCOD8272C/N3C/N、pH、DO19-21。C/N=1C/N2223C/N32、340%C/NC/N。3C/N3DO。DO24。2mL/hDO0.49～1.02mg/LDO25。。pH。pH7～8.56～7.5。pH26。2pH7.54～8.23pH。。4C/N60%。C/NC/N。C/NC/N。1．．201142211-1350XieXinliWangXin．Analysisofinfluencingfactorsofshortcutnitrification-denitrificationbiologicalnitrogenre-movaltechnique．IndustrialWater＆Wastewater201142211-1350inChinese2．-．200922459-62108WangMinWangJiangen．Studyonthefactorsinfluencingshortcutnitrification-denitrificationprocess．PollutionCon-trolTechnology200922459-62108inChinese3．A/O．2012354170-174HuLan．Shortcutnitrification-denitrificationbybioactivecarbonA/Otechnique．EnvironmentalScience＆Technol-ogy2012354170-174inChinese4．A2O．2010305625-632ZengWeiLiLeiYangYingyingetal．Short-cutnitrifi-cationanddenitrificationinA2Oprocesstreatingdomesticwastewater．ChinaEnvironmentalScience2010305625-632inChinese5．．2009295486-492ZhiXiahuiHuangXiaLiPengetal．Affectingfactorsofnitriteaccumulationinanaerobic-aerobic-anoxicshortcutnitrificationprocess．ChinaEnvironmentalScience2009295486-492inChinese6．Orbal．20052185-9GaoShouyouPengYongzhenWangShuyingetal．Pilotstudyonorbaloxidationditchforbiologicalnitrogenremov-al．ChinaWater＆Wastewater20052185-9inChinese7．SBＲ．2009293312-317LiLingyunPengYongzhenYangQingetal．Factorsoptimizationofrapidstart-upforpartialnitrificationinSBＲprocess．ChinaEnvironmentalScience2009293312-317inChinese8．NaClSBＲ．2013392280-286ZhangLanheFuXiangyuYangTaoetal．EffectofNaClsalinityonshort-cutnitrificationanddenitrificationu-singSBＲ．JournalofBeijingUniversityofTechnology2013392280-286inChinese9．A/O．2006265703-7099279MaYongWangShuyingZengWeietal．A/Opilot-scalenitrogenremovalprocesstreatingdomesticwastewaterI．Thestudyofshort-cutnitrificationanddenitrification．ActaScientiaeCircumstantiae2006265703-709inChinese10．．2005313167-168HanYan．Experimentofammonia＆nitrogenremovementbytechnologyofbiologicaltouchingoxidization．ShanxiArchitecture2005313167-168inChinese11HanakiK．HongZ．MatsuoT．Productionofnitrousoxidegasduringdenitrificationofwastewater．WaterSci-enceandTechnology1992265-61027-103612ChungJ．BaeW．LeeY．etal．Shortcutbiologicalnitro-genremovalinhybridbiofilm/suspendedgrowthreactorsProcessBiochemistry2007423