SBR中联氨对亚硝化的影响李娜

SBＲ*1212131.1100042.1100343.115000SBＲ。pH7.5～8.07.5mg/L1.4412.23mg/L7.5mg/LSEM7.5mg/LEPS。SBＲSEMDOI10.13205/j．hjgc．201608005THEEFFECTOFDOSINGHYDＲAZINEONSHOＲTCUTNITＲIFICATIONINSBＲLINa12HUXiao-min1LIGuo-de2JIANGBin-hui1SunZhaonan31.SchoolofＲesourcesandCivilEngineeringNortheasternUniversityShenyang110004China2.ExperimentalCenterofShenyangNormalUniversityShenyang110034China3.DepartmentofChemicalEngineeringYingkouInstituteofTechnologyYingkou115000ChinaAbstractInordertodevelopanefficientbiologicalnitrogenremovalprocesstheeffectsofhydrazineonshortcutnitrificationanddenitrificationinSBＲwasresearched．TheresultsshowedthattheoptimumconditionofnitriteaccumulationwasasfollowsＲoomtemperaturenocontrollingthedissolvedoxygenandpHof7.5～8.0dosinghydrazineof7.5mg/L．Whendosinghydrazineof7.5mg/Ltheeffluentammonianitrogenandnitritenitrogenwere1.4412.23mg/Lrespectivelywhichwerebetterthanthatofotherdosageofhydrazine．Thenumbersandkindsofmicrobesintheactivatedsludgewithdosinghydrazineof7.5mg/Lwerericherthanthatoftheactivatedsludgewithoutdosinghydrazine．SEMimageshowedwhenthestructureofactivatedsludgewithdosinghydrazineof7.5mg/Lwasdensecompactandthenumberofbacterialcolonyincreasedsignificantly．Theactivatedsludgeinfraredspectroscopyshowedthatthepositionofcharacteristicpeakbasicallythesamewithaddinghydrazineornotbutwhendosinghydrazineof7.5mg/Ltheintensityofitspeakwashigher．KeywordsSBＲshortcutnitrificationhydrazinemicrobesSEMinfraredspectrum*“”2013ZX07202-010L2014437F15-199-1-2120152016353358。2015－12－2201-2。3-5。6-8。25%40%50%pH9-12。22EnvironmentalEngineeringpH、DO、、、、13-18。11.11。。。pHpH。1Fig．1Technologicalprocessoftheexperiment1.2ρSVI、ρMLSS、ρVSS66.8746203370mg/L。NH4ClC6H12O6。NaHCO3400mg/LCaCl24mg/LKH2PO440mg/LMgSO4·7H2O40mg/LFeCl3375mg/LH3BO337.5mg/LCuSO4·5H2O7.5mg/LKI45mg/LMnSO4·H2O25.69mg/LZnSO4·7H2O30mg/LEDTA2500mg/LCoCl2·6H2O50mg/LNa2MoO4·2H2O20mg/L。1.3ULTＲAPLUSGermany。pH7.425%4℃3hpH7.40.2mol/L310min50%、70%、80%、90%10～15min100%310～15min100%∶1∶1115min12h。1.430min30min320000r/min20min。EPS0.45μm。1.5《》。1。1Table1AnalyzingmethodsofexperimentalwastewaterqualitypHCODNH+4－NNO－2－NN-1--NO－3－NMLSSMLVSS22.1pH7.5～8.04300mg/LρDO＞6mg/LDO。57.51012.5mg/L。111d12、3。21057.51012.5mg/L2.744.831.443.475.36mg/L。332WaterPollutionControl—■——●—0mg/L—▲—5mg/L—□—7.5mg/L—△—10mg/L—☆—12.5mg/L。2Fig．2VariousofeffluentNH+4－Nwithdifferenthydrazineconcentration—●—0mg/L—▲—5mg/L—□—7.5mg/L—△—10mg/L—☆—12.5mg/L。3Fig．3Variousofeffluentnitritewithdifferenthydrazineconcentration2.171112.2310.49mg/L。7.5mg/L。2.27.5mg/L4。。2.37.5mg/L5。、。2.47.5mg/LEPS6。a、bc、d、e、f7.5mg/L。4Fig．4Thebiofaciesintheactivatedsludgea—b—。5SEMFig．5TheSEManalysisofthemicrobialintheactivatedsludgeEPS。3400cm－1—OHN—H1600cm－1CO1400cm－1C—H1100cm－1C—O。900cm－1、。317.5mg/L1.4412.23mg/L。27.5mg/L42EnvironmentalEngineeringa—b—。6EPSFig．6InfraredspectrumoftheEPSofactivatedsludge。37.5mg/LSEM、。47.5mg/LEPSEPS。1LuJJinQHeYLetal．SimultaneousremovalofphenolandammoniumusingSerratiasp．LJ-1capableofheterotrophicnitrification-aerobicdenitrificationJ．WaterAirSoilPollut2014225921-25.2HossainFChangNBWanielistaMetal．Nitrificationanddenitrificationinapassiveon-sitewastewatertreatmentsystemwitharecirculationfiltrationtankJ．WaterQualExpoHealth20102131-46.3LiXMXiaoYLiaoDXetal．SimultancousremovalofphenolandammoniumusingScrratiasp．granulationofsimultaneouspartialnitriticationandanammoxbiomassinonesingleSBＲsystemJ．ApplBiochemBiotechnol20111631053-1065.4FangFNiBJLiXYetal．Kineticanalysisonthetwo-stepprocessesofAobandNOBinaerobicnitrifyinggranulesJ．ApplMicrobiolBiotechnol20098361159-1169.5．—J．2012273408-412.6．J．2013541-45.7．J．20154213119-120.8．J．2015355-58.9．SBＲJ．201430311-13.10KhinTAnnachhatreAP．NovelmicrobialnitrogenremovalprocessesJ．BiotechnologyAdvances2004227519-532.11ChungJBaeWLeeYWetal．Shortcutbiologicalnitrogenremovalinhybridbiofilm/suspendedgrowthreactorsJ．ProcessBiochem2007423320-328.12．J．2011311153-56.13ZhangLQWeiCHZhangKFetal．EffectsoftemperatureonsimultaneousnitrificationanddenitrificationvianitriteinasequencingbatchbiofilmreactorJ．BioprocessBiosystEng2009322175-182.14GuoXKimJHBeheraSKetal．InfluenceofdissolvedoxygenconcentrationandaerationtimeonnitriteaccumulationinpartialnitrificationprocessJ．IntJEnvironSciTech200854527-534.15WangFLiuYWangJHetal．Influenceofgrowthmanneronnitrifyingbacterialcommunitiesandnitrificationkineticsinthreelab-scalebioreactorsJ．JIndMicrobiolBiotechnol2012394595-604.16GaneshＲSousbiePTorrijosMetal．NitrificationanddenitrificationcharacteristicsinasequencingbatchreactortreatingtannerywastewaterJ．CleanTechnEnvironPolicy2015173735-745.17WangXLMaYPengYZetal．Short-cutnitrificationofdomesticwastewaterinapilot-scaleA/OnitrogenremovalplantJ．BioprocessBiosystEng200730291-97.18SinhaBAnnachhatreAP．Partialnitrification—operationalparametersandmicroorganismsinvolvedJ．ＲevEnvironSciBiotechnol200764285-313．1981－。[e-mail]1958－。[e-mail]52WaterPollutionControl