搜索
61Vol．6No．120121ChineseJournalofEnvironmentalEngineeringJan．2012Carrousel121331．1000832．1000703．100084CarrouselDO、TCOD/TN。HRT、、TCOD/TNTN、TPDOHRT、、DOTN、TPTCOD/TNHRT、DOTCOD/TNTNTP。CarrouselX703A1673-9108201201-0073-04EffectofdifferentworkingconditionsonsimultaneousnitrogenandphosphorusremovalincarrouseloxidationditchXiaLan12ZhuShuquan1LiuYanchen3ShiHanchang31．SchoolofChemicalandEnvironmentalEngineeringChinaUniversityofMiningandTechnologyBeijingBeijing100083China2．DatangInternationalChemicalTechnologyResearchInstituteCo．Ltd．Beijing100070China3．DepartmentofEnvironmentalScienceandEngineeringTsinghuaUniversityBeijing100084ChinaAbstractACarrouseloxidationditchwassetuptoinvestigatetheeffectsofDOTCOD/TNandsludgere-turnratioontheefficiencyofthesimultaneousnitrogenandphosphorusremovalofdomesticsewageinthisstudy．ThetestresultsindicatedthatwhentheHRTsludgereturnratioandTCOD/TNwerethesameTNandTPre-movalefficiencyoftheoxidationditchsystemdecreasedwiththeDOconcentrationincreased．WhentheHRTsludgereturnratioandDOconcentrationwerethesameTNandTPremovalefficiencyoftheoxidationditchsys-temincreasedwhiletheTCOD/TNincreased．WhentheHRTDOconcentrationandTCOD/TNwerethesameTNremovalefficiencyoftheoxidationditchsystemincreasedasthesludgereturnratioincreasedbutTPremovalefficiencyoftheoxidationditchsystemdecreasedasthesludgereturnratioincreased．KeywordsCarrouseloxidationditchnitrogenandphosphorusremovaldissolvedoxygentotalchemicaloxygendemand/totalnitrogensludgereturnratio“863”2004AA6010602010－05－112010－10－061983～。E-mailelizabethxialan@qq．com1。COD、BOD5、SSNH3-NTN、TP。Carrousel2-DO3。、DOHRT45。DO、TCOD/TN3Carrousel。611．1Carrousel1。Carrousel736mm300mm450mm350mm102L2。1CarrouselFig．1FlowchatofCarrouseloxidationditchCarrouselCarrouselSRT。MLSS5．90mg/L。1．21。、。1Table1WaterqualityparametersofsewageinaschoolTCODmg/LSCODmg/LTNmg/LTPmg/LpH112．32～535．9253．51～333．9827．56～70．860．60～4．806．60～7．72274．22179．0051．372．977．27TCOD、SCOD6TN-6TP-6NO－3-N6。22．1DOHRT、、TCOD/TNDO2。28d、13d2。2DOTable2ConditionsofphosphorusandnitrogenremovalsimultaneouslywithdiverseDOinoxidationditchHRThDOmg/LTCOD/TN1122．820．655．592122．821．276．212DOFig．2EffectofDOonTNandTPremovalinoxidationditch2DO0．65mg/LTN、TP20．24%32．37%DO1．27mg/LTN、TP10．20%11．18%。TNDO471CarrouselDODOTN。TPDODOTP。2．2TCOD/TNHRT、、DOTCOD/TN3。3TCOD/TNTable3ConditionsofphosphorusandnitrogenremovalsimultaneouslywithdiverseratioofTCOD/TNinoxidationditchHRThDOmg/LTCOD/TN3122．820．65～0．805．594122．820．808．09TCOD/TN3。3TCOD/TNFig．3EffectofTCOD/TNonTNandTPremovalinoxidationditch33、4TCOD/TN5．59TN、TP20．24%32．37%TCOD/TN8．09TN、TP32．15%35．60%。TCOD/TNTN、TP11．91%。TCOD/TNTNTP。7。C/NC/N。2．3HRT、DO、TCOD/TN4213h/L。4Table4ConditionsofphosphorusandnitrogenremovalsimultaneouslywithdiversesludgereturnratioinoxidationditchHRThDOmg/LTCOD/TN57．841．501．164．6467．842．081．085．4624。4Fig．4EffectofsludgereturnratioonTNandTPremovalinoxidationditch45、61．50TN、TP15．71%35．40%2．08TN2．97%TP57610．43%。TNTN。8。0．81～1．29mg/L1．50、2．08NO－3-N13．33mg/L28．99mg/L。NO－3-NTNNO－3-NTP。31HRT、、TCOD/TNTN、TPDO。2HRT、、DOTN、TPTCOD/TN。3HRT、DO、TCOD/TNTNTP。1．．200224281-84QiuWeiZhangZhi．Disquisitiononchemicalphosphorusremovalfrommunicipalwastewater．ChongqingEnviron-mentalScience200224281-84inChinese2．Carrousel．200671242-45PengYongzhenHouHongxunQiaoHaibingetal．StudyonnitrogenandphosphorusremovaleffectbymodifiedCar-rouseloxidationditchprocess．TechniquesandEquipmentforEnvironmentalPollutionControl200671242-45inChinese3ZengR．J．LemaireR．YuanZ．etal．Simultaneousnitrificationdenitrificationandphosphorusremovalinalabscalesequencingbatchreactor．BiotechBioeng2003842170-1784．/．2006LiuZhaorong．Studyonsimultaneousnitrificationanddeni-trificationandphosphorusremovalinsingletankofnewlyoxidationditchsystem．ChongqingMasterDissertationofChongqingUniversity2006inChinese5．A2N．2008241337-41YangQingjuanWangShuyingLiuYingetal．StudyoninfluenceofsludgerecycleratioonremovalofnitrogenandphosphorousinA2Ndenitrifyingphosphorusremovalprocess．ChinaWater＆Wastewater2008241337-41inChinese6．．200632288-917．C/NCarrousel2000．200933451-454ZhangChaoshengLinFengRongHongwei．EffectofC/NonsimultaneousnitrogenandphosphorusremovalinCar-rousel2000oxidationditch．ChineseJournalofEnviron-mentalEngineering200933451-454inChinese8．/．200931159-61MaFeifeiWuZhichaoZhouZhen．Effectofrecycleratioonphosphorusremovalofanaerobic/aerobicprocess．Envi-ronmentalPollution＆Control200931159-61inChinese67