反硝化生物滤池稳定运行的影响因素研究

*王娟张志辉郑天龙唐丹琦汪群慧100083DNBF、HＲT。36dDNBF100mg/L90%10dDNBF13d150mg/LHＲT2h6h48.8%79.9%0.59kg/m3·d3.28kg/m3·d81.4%。HＲTDOI10.13205/j．hjgc．201406001STUDYONTHEＲELATEDFACTOＲSOFDENITＲIFICATIONBIOFILTEＲINSTEADYSTATEWangJuanZhangZhihuiZhengTianlongTangDanqiWangQunhuiSchoolofCivilandEnvironmentalEngineeringUniversityofScienceandTechnologyBeijingBeijing100083ChinaAbstractAtpresentdenitrificationbiofilterDNBFisgenerallyusedfortreatmentoflownitratecontaminatedwater．InthisstudytreatmentofwastewaterwithhighnitrateconcentrationbyDNBFwasresearched．TheeffectsofDNBFstartupstarvationtimehydraulicretentiontimeHＲTandinletnitrateloadonnitratenitrogenremovalwereexamined．Theresultsshowedthatafter36dofstartupoftheDNBFremovalefficiencyofmorethan90%wasachievedattheinfluentNO－3－Nconcentrationof100mg/LandtheactualCODconsumptionandnitratereductionratiowas4.23Afterstarvationfor10danother13dwereneededtorestorethenitrateremovalefficiency．AttheinfluentNO－3－Nconcentrationof150mg/Landwatertemperatureof13℃whenHＲTincreasedfrom2hto6hthenitrateremovalefficiencyincreasedfrom48.8%to79.9%Howeverwhenthenitrateinletloadrosefrom0.59kg/m3·dto3.28kg/m3·ditsremovalefficiencykeptbasicallystableattheaverageof81.4%．KeywordsdenitrificationbiofilterDNBFstarvationtimeHＲTnitratenitrogenload*2011090242012ZX072010026。2013－09－300、1-2。DNBF3-5。DNBF、6。DNBF50mg/L3-47-8DNBF。DNBFDNBF。11.1试验装置与材料120mm×1mDNBF。63cm7.1L。30～40mm3000m2/m396%。、KNO3COD/N1WaterPollutionControl9。。1.2DNBF的启动15L、200mg/L。3。。22.1DNBF的启动性能DNBF812—926＞20℃。HＲT2h10mg/L100mg/LCOD/N5.0。NO－3－N1。1DNBF70%34＞80%。10mg/L。DNBF。136dDNBF100mg/L95.4%。1DNBFFig．1Ｒemovalofnitratenitrogeninstartupphase。、、。110NO－3+1.08CH3OH+0.24H2CO3→0.056C5H7O2N+0.47N2+1.68H2O+HCO－31COD2。COD/N5.0CODCOD1394.0mg/L。12DNBFCOD1mgCOD4.23mg13.7COD。CODCOD。2CODFig．2ChangeinconcentrationofCODinstartupphase2.2饥饿时间对DNBF脱氮效果的影响DNBF。DNBF、、11。。DNBFDNBF。10dDNBF。3DNBFHＲT2h2EnvironmentalEngineering100mg/L10d。395.6%10d。1—1060%80%。13dDNBF98.9%。DNBF。310dDNBFFig．3Ｒecoveryofnitratenitrogenremovalafterstarvationfor10d2.3HＲT对DNBF脱氮效果的影响COD/N4.0150mg/LHＲT246hDNBF。112311011～15℃13.3℃。HＲTDNBF4。HＲT2h43.8%。HＲT4h6h68.1%79.6%。HＲTDNBF。HＲT。6hHＲT。2.4硝氮负荷对DNBF脱氮效果的影响HＲT6hDNBF。17～23℃21.4℃。5DNBF。81.4%。3.28kg/m3·d85.7%2.81kg/m3·d。54HＲTDNBFFig．4EffectofHＲTonnitratenitrogenremoval3.28kg/m3·dＲ20.985。5DNBFFig．5Changeinremovalrateandefficiencyofdifferentnitratenitrogeninletload3136dDNBF100mg/L90%。2HＲTDNBF。10dDNBF13d。13℃HＲT2h6h48.4%79.6%。3。0.59kg/m3·d3.28kg/m3·d81.4%。1SavciS．InvestigationofeffectofchemicalfertilizersonenvironmentJ．ApcbeeProcedia20121287-292.2．J．2003244109-112.73WaterPollutionControl。。。1．J．2012244379-381.2．J．200915764-66.3．J．199616166-72.4．J．200830784-87.5．J．201130687-91.6．J．20041749-10.7．J．2010271069-72.8．J．200826S113-15.9BaljitKaurManjuSharmaＲohitSonietal．Proteome-basedprofilingofhypercellulase-producingstrainsdevelopedthroughinterspecificprotoplastfusionbetweenAspergillusnidulansandAspergillustubingensisJ．AppliedBiochemistryandBiotechnology20131692393-407.10SivakumarUKalaichelvanGＲamasamyK．ProtoplastfusioninStreptomycessp．forincreasedproductionoflaccaseandassociatedligninolyticenzymesJ．WorldJournalofMicrobiology＆Biotechnology2004206563-568.11WeiWLWuKLQinYetal．IntergenericprotoplastfusionbetweenKluyveromycesandSaccharomycescerevisiae-toproducesorbitolfromJerusalemartichokesJ．BiotechnologyLetters20012310799-803.12JinZHXuBLinSZetal．EnhancedproductionofspinosadinSaccharopolysporaspinosabygenomeshufflingJ．AppliedBiochemistryandBiotechnology20091593655-663.13StemmerWPC．MolecularbreedingofgenespathwayandgenomesbyDNAshufflingJ．JournalofMolecularCatalysisBEnzymatic20021923-12.14ManojKumarMahendraPratapSinghDeepakKumarTuli．GenomeshufflingofPseudomonassp．Ioca11forimprovingdegradationofpolycyclicaromatichydrocarbonsJ．AdvancesinMicrobiology2012226-30.15ChenZWenJSongYetal．EnhancementandselectiveproductionofavermectinBbyrecombinantsofStreptomycesavermitilisviaintraspecificprotoplastfusionJ．ChineseScienceBulletin2007525616-622.16XuJZZhangJLZhangWGetal．ThenovelroleoffungalintracellularlaccaseusedtoscreenhybridsbetweenHypsizigusmarmoreusandClitocybemaximabyprotoplasmicfusionJ．WorldJournalofMicrobiology＆Biotechnology20122882625-2633.17．J．201117481-83.1974－。[e-mail]1987－。櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅[e-mail]rbon-to-nitrogenwastewaterinfour-stagebiologicalaeratedfiltersystemJ．ProcessBiochemistry2008437729-735.6．J．200935-7.7DongWYZhangXBWangHJetal．EnhanceddenitrificationwithexternalcarbonsourcesinabiologicalanoxicfilterJ．WaterScienceandTechnology201266102243.8AslanSCakiciH．BiologicaldenitrificationofdrinkingwaterinaslowsandfilterJ．JournalofHazardousMaterials20071481253-258.9SakumaTJinsiriwanitSHattoriTetal．Ｒemovalofammoniafromcontaminatedairinabiotricklingfilter-denitrifyingbioreactorcombinationsystemJ．WaterＲesearch200842174507-4513.10McCarthyPLBeckLAmantPS．BiologicalDenitrificationofWastewatersbyAdditionofOrganicMaterialsC．24thIndWasteConf1969.11HwangKSongMKimWetal．Effectsofp