雙污泥SBR工藝短程反硝化除磷脫氮的試驗(yàn)研究.pdf

1、沈陽建筑大學(xué)碩士學(xué)位論文雙污泥SBR工藝短程反硝化除磷脫氮的試驗(yàn)研究姓名：秦亞敏申請學(xué)位級別：碩士專業(yè)：市政工程指導(dǎo)教師：李亞峰201101碩士研究生學(xué)位論文AbstractIIIAbstractTherearesomanyshtcomingsthatthenitrogenphosphusremovalcannotbecarriedoutsmoothlyincludingtwoaspects:bothdenitrificationpho

2、sphusreleaseconsumecarbonininadequateconditionsdenitrificationphosphusreleasebacteriacompetecarbonsourcewitheachotherleadingtothefailureofdenitrificationphosphusremoval[1]phosphusremovalbacterianeedtoachievephosphusremov

3、althroughexcludingthesludgetheSRTisshterwhilethegenerationtimeofnitrifyingbacteriaislongerexcludingthesludgetoooftenwillmakeahugelossofimmaturenitrifyingbacteria.Fthesereasonstheidealnutrientremovalprocessshouldprovideen

4、oughcarbonsourcefdenitrifyingbacteriaphosphusreleasebacteriamakethenitrifyingbacteriaPAOsgrowindependentlytosolvethecompetitiononmatrixSRT[2].ShtrangetwosludgeSBRnutrientremovaltechnologyisanewtechnologydevelopedonthebas

5、isoftraditionalbiologicalnutrientremovaltechnologythatcaneffectivelysolvetheseproblems.Theexperimentcanprovidetechnicalbasisfpracticalapplicationofthetwosludgesystemthroughstudyingthebestoperatingconditionsthetreatmentef

6、fectofcontinuousoperation.ThetestusedsimulateddomesticwastewaterastheresearchobjectadoptedtwosludgeSBRreacttomakeastudyofpollutantremovalefficiency.FirstthetestobtainnitrificationbacteriabacteriawhichuseNO2Nastheelectron

7、acceptthroughseparateacclimationthenmakethestudyofnitrificationdenitrificationphosphusremovaleffectstheaccumulationmechanismofbacterialnitrificationthroughreactteststatictestfinallyinvestigatingtheeffectofphosphusnitroge

8、nremovalofthetwosludgeSBRprocessbyrunningcontinuousUsingaseparatemethodofacclimationafter47days107daysacclimationnitrificationbacteriadenitrifyingphosphateaccumulatingbacteriawhichusenitriteaselectronacceptcanbeobtained.

9、Intheaerobicreacttheammoniaremovalnitrificationrateswereupto96%95%seperatelyHypoxiaeffluentphosphusconcentrationofdenitrifyingremovalreactwasupto0.4mgL.StudyingNO2Naccumulationfactswiththemethodofintermittentaeration.The

10、resultshowedthatthetemperatureat25℃pH=7.5DO1.0mgLNO2Naccumulationhasthebesteffect.AfteraperiodofstableoperationtheNO2Nconcentrationofeffluentcanreach24mgL.StudyoffactsofDPBusedNO2Nastheelectronacceptshowedthatanoxicphosp