好氧顆粒污泥除磷特性的研究.pdf

1、華中科技大學(xué)碩士學(xué)位論文好氧顆粒污泥除磷特性的研究姓名：蘭丹申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：環(huán)境工程指導(dǎo)教師：楊昌柱20090531II華中科技大學(xué)碩士學(xué)位論文華中科技大學(xué)碩士學(xué)位論文AbstractAerobicgranularsludgeisanewbiologicaltechnologywhichhascompactstructuregoodsettlingabilityperfectbiologicalactivity.Thereare

2、kindsofmicroganismthatbringdifferentmetabolismtofinishbiologicalnutrientremoval.ThepaperinvestigatedeffectsofdifferentseedsludgetotheaerobicgranulesfmingthestartupofaerobicgranulesSBARwasaccomplishedthefavableactersofgra

3、nuleswereacquired.Thisresearchanalysestheinfectionsofaerobicgranularsludgestabilitymakessomemeasurestoresumeit.Besidesstudytheacteristicsperfmancesofphosphusremovalintheaerobicconditionstheanaerobicanoxicaerobicoperation

4、moderespectively.AerobicgranularsludgewerecultivatedwithactivatedsludgeseedafewaerobicgranulesseedinSBARseparatelybyincreasingganicloadinggraduallydecreasingsedimentationtime.Thereactwasstartedwithadvancedaerobicgranules

5、ofdiameterabout0.1mm～0.5mmseedgranuleswerethedominantsludgefmswithgranulesizeof1.0mm～2.0mmsettlingvelocityof50.69mhaftertwoweeks.Ittookabout50daysfmcompletegranulationwithactivatedsludgeinoculated3.0mmexceedindiameter43.

6、60mhinsettlingvelocity.Makeamicrobialobservationofgranulationprocessestostudythemechanismsitshowedaerobicgranulesseedprovidedmezoogloeaswithstrongeradsbabilityascarrierfnewaerobicgranularsludgefmingbetweenmicrobialcells.

7、WhenSBARhadbeenstablyoperatedCODNH3NTNTPremovalefficiencieswerehigherthan98%98%80%86%respectively.Studythephosphusremovalacteristicsofaerobicgranularsludgeinaerobicconditions.InfluentCODwas600mgLtheremovalrateof92.9%wher

8、eas800mgLofthatpedto63%.CNratiowas20over152530ofaerobicgranularsludgephosphusremovalefficiency.WhenSRToflessthan25daerobicgranularsludgeremovalrateofTPinmethan86%SRTwas20dreached91.8%whilethesystemoftheTPonly68.1%removal