SUFR系统中活性污泥特性及反硝化除磷稳定性罗固源

24120111ResearchofEnvironmentalSciencesVol.24No.1Jan.2011SUFR400045SUFRρCODCrSRT.SUFRSVI50～150mL/g0.750.7～0.9mm.SNR1.95mg/g·h0.5hSPRR0.526.82mg/g·hASPUR6.04mg/g·hNSPUR4.27mg/g·h0.60.SUFRρCODCrSRTρCODCrSRT.SUFRCODCrX505A1001－6929201101－0085－05CharacteristicsofActivatedSludgeandStabilityofDenitrifyingPhosphorusRemovalinSUFRSystemLUOGu-yuanZHANGYuanXUXiao-yiKeyLaboratoryoftheThreeGorgesReservoirRegion’sEco-EnvironmentMinistryofEducationChongqingUniversityChongqing400045ChinaAbstractThecharacteristicsofactivatedsludgeandeffectsofinfluentCODCrandSRTonstabilityofdenitrifyingphosphorusremovalinaSUFRsystemwerestudied.TheresultsobtainedwereasfollowstheSVIwasbetween50to150mL/gsludgeactivitywasallover0.75sludgegraindiameterwasmostlybetween0.7to0.9mmwhichwassmallgrainsludgeandsludgesettlingabilitywasgood.FurtherresultswereasfollowsSNRofthesludgewasabout1.95mg/g·hSPRR0.5was26.82mg/g·hASPURwas6.04mg/g·hNSPURwas4.27mg/g·hthesludgeyieldcoefficientwasabout0.60andtheSUFRsystemhadahigherremovalabilityofnitrogenandphosphorus.DenitrifyingphosphorusremovalintheSUFRsystemhadsomeshockresistanceofinfluentCODCrandSRT.PhosphorusremovaleffecthadahighershockresistanceofinfluentCODCrbutthephosphorusremovaleffectswouldbedecreasedoverlong-termoperationonalowerSRTbecauseofadramaticdecreaseofactivatedsludgequantity.Keywordsspiralup-flowreactorSUFRactivatedsludgeCODCrS[e-mail]10.13198/j.res.2011.01.87.luogy.006241011.Spiral-UpFlowReactorSUFRUCT12ZL03117335.8.SUFR.11.1SUFR85L16L24L45L.9L/h9hSRT15dρDO3.0～3.5mg/LρDO0.5mg/L.40%～60%200%～250%.100%～150%.1.1SUFRFig.1SchematicdiagramofSUFRsystem、、、.ρCODCr250～350mg/LρTN25～40mg/LρTP5～8mg/LpH6.5～7.5.1.2ρCODCrρTP－ρTN－ρNH4+-NρMLSSρMLVSS30minSV3030min.HP－6010YSI5100XSZ－GORP－431pH..22.12.1.11.SVI50～150mL/gSVISUFR.13ρMLVSS/ρMLSS0.75.1Table1TheactivityandsettlementcharacteristicsofsludgeindifferentreactorsρMLSS/mg/L219929482903ρMLVSS/mg/L185222142183ρMLVSS/ρMLSS0.8420.7510.752SV30/%203631SVI/mL/g90.95110.9196.182.Sauter14D=1/nΣab21/3Dmmnabmm.0.7～0.9mm.Alphenaar40%～80%15.2.1.24000r/min3min3min31LNH4ClρNH4+-N20mg/L681SUFR2Fig.2Microphotographofgranularsludge1mol/LNaOHHClpH7.00.5hρNH4+-N.ρNH4+-Nt3.ρMLVSS2126mg/LρNH4+-NSNR1.95mg/g·h.3ρNH4+-NFig.3Theammoniamassconcentrationinthetestforspecificnitrificationrate2.1.30.5L3ρCODCr500mg/L.0.5hρTP0.5hSPRR=ρTP0.5－ρTP0ρMLVSS0×tSPRRmg/g·hρTP0ρTP0.50.5ρTPmg/Lth0.5h.SUFR0.5hSPRR0.526.82mg/g·h.DO.1.5～1.7h.2.1.4/30.5LKH2PO4NaNO3ρTP040mg/LρNO3－-N30mg/L1hρDO3.5mg/L.1hρTPρMLVSSSPUR=ρTP0－ρTPtρMLVSS×tSPURmg/g·hρTPttρTPmg/L.ASPUR6.04mg/g·hNSPUR4.27mg/g·h.16-17RDPAO=qan/qaeRDPAO%qan7824mg/g·hqaemg/g·h.70.7%SUFR..2.1.5YY=QXeQρS0－ρSe=XeρS0－ρSeQ9L/hXeρMLVSSmg/LρS0mg/LCODCrρSemg/LCODCr.Xe0.218g/LρS0379mg/LρSe14mg/L.SUFRY0.6015%18.SUFRρDO3.0～3.5mg/L.2.22.2.1CODCrρCODCr100～200200～300300～400400～500500～600mg/LρCODCr4.4ρCODCrρCODCr200～300mg/L.ρCODCr300～400mg/LρCODCr60mg/L19.ρCODCr4ρCODCrTPFig.4PhosphorusremovalatvarietyofinfluentCODCrmassconcentrationCODCr.ρCODCrρCODCr200mg/LTP90%.SUFRCODCr.2.2.2SRTSRT8152025dSRT5.*SRT8d.5SRTTPFig.5PhosphorusremovalatvarietyofSRT5SRT.20.SRTTP.TP80%SUFRSRT881SUFRSUFR.SRT8d1ρMLSS1500mg/LρMLSS900mg/LTP60%.SRT.3a.SUFRSVI50～150mL/gρMLVSS/ρMLSS0.750.7～0.9mm.b.SUFRSNR1.95mg/g·hSPRR0.526.82mg/g·hASPUR6.04mg/g·hNSPUR4.27mg/g·hY0.60.c.SUFRρCODCrρCODCrSUFRSRTSRT.References1SCHWARZENBECKNBORGESJMWILDERERPA.TreatmentofdairyeffluentsinanaerobicgranularsludgesequencingbatchreactorJ.ApplMicrobiolBiotechnol2005666711-718.2.J.200824219-12.3.J.2008242136-139.4.J.200518284-88.5KISHIDANKIMJTSUNEDASetal.Anaerobic/oxic/anoxicgranularsludgeprocessasaneffectivenutrientremovalprocessutilizingdenitrifyingpolyphosphate-accumulatingorganismsJ.WaterRes200640197-105.6TSUNEDASOHNOTSOEJIMAKetal.Simultaneousnitrogenandphosphorusremovalusingdenitrifyingphosphate-accumulatingorganismsinsequencingbatchreactorJ.BiochemicalEngJ2006271191-196.7ZENGRJSAUNDERSAMYUANZetal.Identificationofcomparisonofaerobicanddenitrifyingphosphate-accumulatingorganismsJ.BiotechnolBioeng2003832140-148.8.J.200215338-41.9.J.201043513-516.10.SUFRJ.2004233100-103.11.SUFRJ.200531628-31.12.J.200424116-20.13.M.200110-11.14.ICJ.20104167-70.15ALPHENAARA.ThecharacterizationofanaerobicgranularsludgeJ.ApplMicrobiolBiotechnol199339276-280.16WACHTMEISTERAKUBATVANLOOSDRECHTMCMetal.AsludgecharacterizationassayforaerobicanddenitrifyingphosphorusremovingsludgeJ.WaterRes1997313471-478.17MEINHOLDJFILIPECDMDAIGGERGTetal.CharacterizationofthedenitrifyingfractionofphosphateaccumulatingorganismsinbiologicalphosphateremovalJ.WaterSciTechnol199939131-42.18.J.2009254105-108.19.CODC/NJ.2005211219-23.20.SBRJ.200122287-90.98