AAO工艺反硝化生物滤池中氨氮去除的影响因素研究闫志谦

AAO*050026－－AAO。－、pH、DO、SS、。pH6．5～8．08h。。X703．1A0517－6611201130－18613－03StudyonInfluencingFactorsforAmmoniaNitrogenRemovalofAAODenitrificationAeratedFilterYANZhi-qianetalDepartmentofChemicalandEnvironmentalEngineeringHebeiChemicalandPharmaceuticalVocationalTechnologyCollegeShijiazhuangHebei050026AbstractObjectiveTheaimwastointroduceahydrolyticacidification-anoxic-aerobicAAOprocessforthetreatmentofammonianitrogen．MethodThetechnologyofbiologicalnitrogenremovalanddenitrificationtechnologywasintroduced．Effectsofsomefactorslikemonitoringtem-peraturepHDOSSandtimeontheremovalofammonianitrogenwerestudiedandtheoptimalexperimentalconditionsweredeterminedfinally．ResultMethanolshouldbeaddedintoanaerobictanktosupplythecarbonsourceusedbydenitrifyingbacteriaforassimilationmeitabolism．TheanoxicpoolofdenitrifyingbacteriapHwas6．5－8．0best．Temperaturehadlittleeffectondenitrifyingbacteria．Denitrificationresidencetimeshouldbemaintainedat8h．ConclusionTheresearchprovidesreferencefortheammonianitrogenfromurbansewagetreatmentplanttoachievethenewwaterstandarddischarge．KeywordsUrbansewagetreatmentplantDenitrificationbiologicalnittrogenremovalAnoxicAmmonianitrogen10276730。1973－。*[e-mail]。2011-07-18《》GB18918-20021A。AAO、BCFS、Bardenpho、UCT、SBR、JBH、AAA1。、－、、ANAMMOX、、OLAND/、。－、pH、DO、SS、。11．1250BHACHJPB-607pHS-3C。1．22。4NO3－++H2O→2N2+4OH－+5CO2。。1．31．3．1。、SS、pH、CODCr、BOD5、NH4-N、DO、、。《》1。。1Table1Dischargestandardsofrawandnewwastewatermg/LStandardsBOD5CODCrNH4-NTNTPSS2010025－3．030OriginalgradeIIstandards10505150．510NewgradeⅠstandard、pH6～9。NotepHoforiginalgradeIIstandardsandnewgradeⅠstandardis6－9．1．3．21。AAOAnaerobic-Anoxic-Oxic——。－A/O。JournalofAnhuiAgri．Sci．2011393018613－18615DOI:10.13989/j.cnki.0517-6611.2011.30.063CODCrCODCr。1Fig．1Technicalprocessofdomesticsewagetreatment1．4NH4-N、TN、BOD5、pH、DO、SS、。。BOD5250BNH4-NHACHDOJPB-607pHpHS-3C。22．1BOD5/TNNH4-N。BOD5CODCrBOD5BOD5/TN≥4、。NO3－。BOD5/TN3。VFAs。CO2H2O。75mg/L1000kg/m337．5m3/d、。2．2pHNH4-NpH。2pHNH4-N。pH＜7pH＞9NH4-NpHpH。pH＜4NH4-N0。pH7．07．2pH9．08．5NH3-NpH。3“pH6．5～7．5”。pH6．5～8．0。pH6．0。pH。2pHNH4-NFig．2EffectofpHonremovaleffectofNH4-N2．3NH4-NArrhmius4。。10℃10．0℃23．7℃。3。10℃30℃。11～15℃67%15℃15℃83%。25～35℃。。3NH4-NFig．3EffectofwatertemperaturechangeonremovaleffectofNH4-N2．4NH4-N。8h16h28h4168120115“HRT14h”2h20℃HRT。20℃HRT16h。8h。4DONH4-NFig．4EffectofDOconcentrationatanaerobicsegmentonre-movaleffectofNH4-N2．5DONH4-NN2O6。4DO0．02～3．60mg/LDO。DO0．02mg/L99．7%DO3．18mg/L4．5%DO0～1．50mg/L75．0%～99．8%92．0%。DO0．50mg/L。7。1．25mg/L。3BOD5/TN3。pHNH4-NpH6．5～8．0。。16h8h。1．J．20001611－18．2．－D．20099－10．3．M．199319－31．4．M．2000535－537．5．A/OD．2009．6．J．200015514－16．7．J．2002216檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪571－575．1861231SHERRARDJCHUNTERKABOYDPW．Seleniumspeciationinsub-antarcticandsubtropicalwaterseastofNewZealandtrendsandtemporalvariationsJ．DeepSeaResearchPartIOceanographicResearchPa-pers2004513491－506．32LABORDAFBOLEAECASTILLOJR．Electrochemicalhydridegener-ationasasample－introductiontechniqueinatomicspectrometryfunda-mentalsinterferencesandapplicationsJ．AnalyticalBioanalyticalChemistry20073884743－751．33DERNOVICSMSTEFNKAZFODORP．ImprovingseleniumextractionbysequentialenzymaticprocessesforSe-speciationofselenium-enrichedAgaricusbisporusJ．AnalyticalBioanalyticalChemistry20023723473－480．34JITARUPROMANMCOZZIGetal．Speciationanalysisofselenopro-teinsinhumanserumbymicroboreaffinity－HPLChyphenatedtoICP－Sectorfield－MSusingahighefficiencysampleintroductionsystemJ．MicrochimicaActa2009166319－327．35XUMYANGLMWANGQQ．Quantificationofselenium-taggedpro-teinsinhumanplasmausingspecies-unspecificisotopedilutionICP－DRC-qMScoupledon-linewithanionexchangechromatographyJ．Jour-nalofAnalyticalAtomicSpectrometry2008231545－1549．36SZPUNARJ．Bio-inorganicspeciationanalysisbyhephenatedtechniquesJ．Analyst2000125963－988．37GOMEZ-ARIZAJLVALASCO-ARJONAAGIRALDEZIetal．Cou-plingpervaporation-gaschromatographyforspeciationofvolatileformsofseleniuminsedimentsJ．InternationalJournalofEnvironmentAnalyticalChemistry2000783/4427－440．38DENPCU．ModerntrendsinthespeciationofseleniumbyhyphenatedtechniquesJ．AnalyticalBioanalyticalChemistry20023736422－431．39SCHAUMLFFELDLOBIN'SKIR．Isotopedilutiontechniqueforquanti-tativeanalysisofendogenoustraceelementspeciesinbiologicalsystemsJ．InternationalJournalofMassSpectrometry2005242217－223．40KANNAMKUMARATHSSWROBELKWROBELKetal．HPLC-ICP-MSdeterminationofseleniumdistributionandspeciationindifferenttypesofnutJ．AnalyticalBioanalyticalChemistry20023736453－460．41MORENOPQUIJANOMAGUTIRREZAMetal．Stabilityoftotalseleniumandseleniumspeciesinlyophilisedoystersandintheirenzy-maticextractsJ．AnalyticalBioanalyticalChemistry20023743466－476．42ANDERSONSLPERGANTISSA．Sequentialhydridegeneration/pneu-maticnebulisationinductivelycoupledplasmamassspectrometryforthefractionationofarsenicandseleniumspeciesJ．Talanta2003604821－830．516813930AAO