包埋固定化微生物强化SBR工艺脱氮性能研究王亚娥

32SBR730070PVA-H2BO4SBRSBRN1SBRN2SBR。N2NH4+-NTINN14.4%~32.8%、34.1%~50.9%SBR。N2SBR。SBRX703Adoi:10.3969/j.issn.1003-6504.2009.12.0391003-6504(2009)12-0164-04EnhancingNitrogenRemovalbyImmobilizedMicroorganismsinSBRProcessWANGYa-eLIUBao-tangLIJieSchoolofEnvironmentalandMunicipalEngineeringLanzhouJiaotongUniversityLanzhou730070ChinaAbstractTheembeddedimmobilizedmicroorganismsgelpelletusingPVA-H2BO4methodwasappliedintoSBRprocessandthecharacteristicsofnitrogenremovalbetweenconventionalSBRreactorN1andSBRreactoraddedembeddedimmobilizedmicroorganismsgelpelletN2wereinvestigatedthroughtheparallelexperiment.TheenhancedcharacteristicsofnitrogenremovalofSBRprocessbyembeddedimmobilizedmicroorganismwereanalyzed.ResultsshowedthatwiththesameoperationconditionsN2removalrateofNH4-Nandtotalinorganicnitrogenincreasedby4.4%~32.8%and34.1%~50.9%thanN1withobviousimprovedabilityofresistanceload.ThroughstudyingdifferentnitrogenformsinthedifferentreactorsintypicalcyclethereactorwasfoundtohavegoodsimultaneousnitrificationanddenitrificationwhichindicatedthatimmobilizedmicroorganismtechnologycanstrengthennitrogenremovalofSBRreactor.ItalsoprovidedanewideaonimprovingtheperformanceofnitrogenremovalofSBRreactor.KeywordsimmobilizedmicroorganismbiologicalnitrogenremovalsimultaneousnitrificationanddenitrificationSBRSBR、、、、SBR。SBR。SBR、SBR。SBR。11.1C/N。KH2PO4、K2HPO4、NaHCO3、K2CO3、NH42SO4、。1。[e-mail]。EnvironmentalScience&Technology3212200912Vol.32No.12Dec.20091Table1QualityofartificialwastewaterCOD(mg/L)NH4+-N(mg/L)pH(℃)580~62020~807.020~25。12。2PVA-H2BO4[1-2]1。2。1.21.2.1SBR36cm55cm1.55L1.40LN1N2。。PLC。1.2.2SBR8h、6h、4h。3。1.2.34。24000mg/L100mL400mgSBRN2CODCOD。COD。33.1、C/NDO2.5mg/LpH7.0COD600mg/L20~25℃、2Table2ListoftestmaterialsPVA(1799±50)、、CaCl2、(AT)()3Table3Operationconditionintest(h)42min1h2h55min3min62min1h4h55min3min82min1h6h55min3min4Table4AnalysisitemandmethodCOD(NH3-N)(NO2--N)N-(1-)-(NO3--N)(TIN)(NH3-N)+(NO2--N)+(NO3--N)(JPSJ-605)SBR165326C/NN2SBR。30~40mg/L8h4hN190.0%42.9%TIN38.8%17.0%N294.4%63.9%TIN83.1%63.1%N2N1。。N2TIN[3]。TIN。3.28h8h、、。SBR、、TIN。、、TIN、、。SBR、→1h→6h→1h3.2.130~40mg/L30~40mg/L4。C/NC/N。40d。3.1.1COD、C/NCOD5。5COD600mg/LC/NCOD85%C/NCOD。、C/NN2N1。3.1.2TIN、、C/NTIN6。5、C/NCODTable5EffectsofrunningperiodandC/NratioonCODremovalrateC/N15/110/18h6h4h8h6h4hCOD(%)N192.489.588.390.188.685.1N296.592.991.992.391.190.440d。6TINTable6TINandammoniaremovalrateindifferentoperationperiodandinfluentammoniumconcentrationN1N2(mg/L)30~4060~8030~4060~808hTIN(%)38.832.683.176.1(%)90.069.894.489.56hTIN(%)33.830.084.781.2(%)67.549.584.082.34hTIN(%)17.015.663.149.7(%)42.924.764.954.440[TIN]=[NH4+-N]+[NO2--N]+[NO3--N]。1661241N2NH3-NTINN12N1NH3-NNO2--N1hNH3-N5hNO2--N8.7mg/LNO2-NNO3--N3N2NH3-NNO2--NNO3--N。12、。3.2.260~80mg/L60~80mg/L5。5N1TIN14.5mg/L35.1mg/LNO2--N。N2N2。41COD600mg/LC/NCOD85%C/NCOD。2N2NH4+-NTINN14.4%~32.8%、34.1%~50.9%。SBR。330~40mg/L60~80mg/LN2NO3--NNO2--N。[][1].[J].199828237-41.WangJian-longShiHan-chang.Researchanddevelop－mentofimmobilizedmicroorganismembeddedpolyvinylal－cohol[J].IndustrialMicrobiology199828237-41.inChinese[2].[J].2007265.ZhangJian-ruiWangYa-e.Dissolvingcharacteristicsofimmobilizedmicroorganismgelpellet[J].JournalofLanzhouJiaotongUniversityGraduateAlbum2007265.inChinese[3]UemotoH,SaikiH.Behaviorofimmobilizednitrosomonaseuropaeaandparacoccusdenitrificansintubulargelforni－trogenremovalinwastewater[J].ProgBiotechnol199611immobilizedcells695-701.[4].[J].2003235261-264.CuiMing-chaoChenFan-zhongFuJia-mo,etal.Re－searchprogressesofimmobilizedmicroorganismtechniquesinwastewatertreatment[J].EnvironmentalProtectionofChem－icalIndustry2003235261-264.inChineseSBR167