多级好氧缺氧生物膜反应器脱氮及污泥减量特性王永磊

39920139JOUＲNALOFBEIJINGUNIVEＲSITYOFTECHNOLOGYVol．39No．9Sep．201312111121．1001242．250101ρC/ρN、．3∶4∶3HＲT11hρDO4.0mg/L25℃Ｒ=1.0．ρTN、ρNH+4-N、ρCOD80～130、75～100、260～400mg/LρTN20mg/LρNH+4-N、ρCOD5.0、30mg/LTN、NH+4-N、COD80%、95%、91%．0.10．X703A0254－0037201309－1405－082012-04-12．510780080040005466120108122005KZ201110005008．1977—[e-mail]．1964—[e-mail]ceandSludgeＲeductionbyUsingaMulti-aerobic-anoxicBio-filmＲeactorWANGYong-lei12LIJun1ZHANGXue-song1WANGChang-wen1WANGZhao-zhao1YINMeng-meng21．KeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentＲecoveryEngineeringCollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124China2．CollegeofEnvironmentalandMunicipalEngineeringShandongJianzhuUniversityJinan250101ChinaAbstractInordertosolveproblemsofinsufficientcarbonsourcesduringbiologicaldenitrificationandtoomuchsurplussludgeinwastewatertreatmentplantamulti-aerobic-anoxicbio-filmreactorwasbuilttotreatlowρC/ρNratiowastewaterinacommunity．Thereactorcouldachieveitsoptimalresultswhenflowdistributionratiowas3∶4∶3HＲTwas11hρDOwas4.0mg/Ltemperaturewasat25℃andrefluxratioＲ=1.0．UnderaboveconditionswhenρTNρNH+4-NandρCODinrawwaterwas80～13075～100and260～400mg/LrespectivelyremovalefficiencyofTNNH+4-NandCODreached80%95%and91%respectivelyρTNineffluentwasabout20mg/LρNH+4-NandρCODineffluentwasdroppedtobelow5.0mg/Land30mg/Lrespectively．Theresultsalsoshowedthatthesludgeproductionratewasonly0.10whichwassuperiortootherbio-filmprocesses．Sotheeffectsludgereductionwassignificant．Keywordsaerobicanoxicbio-filmnitrogenremovalsludgereduction2013COD、ρC/ρN．1-3．、4-5．、6-7－－．、、、．、、．ρC/ρN．11.11270cm×20cm×60cmL×B×H240L．1Fig．1Experimentdevice9、O-1、A-1、O-2、A-2、O-3、A-3、O-4、．2∶1、50%、100%．28cm1.5cm0.90．2Fig．2CompositedisplacementballporousQ=15L/h5∶3∶2、4∶2∶4、3.3∶3.3∶3.3、3∶4∶3、2∶3∶5、HＲT14h、11h、9h、ρDO2.0、3.0、4.0、5.0mg/L、13℃、25℃、Ｒ2.0、1.5、1.01a．1.21ρNH+4-N75～100mg/L90mg/LρTN110mg/LρBOD5/ρCOD0.65ρC/ρN2.5～3.0．．1.32．、ρMLSSρCODcr．604191Table1Ｒawwaterqualitymg·L－1ρCODρBOD5ρNH+4-NρSSρTNρTP260～400125～26575～10090～17080～1304.6～6.52Table2TestitemsandmethodsCODCrTOCJenapHN-1--－22.1、、Q=15L/hO-1、A-1、A-2Ｒ1=5∶3∶2、Ｒ2=4∶2∶4、Ｒ3=3.3∶3.3∶3.3、Ｒ4=3∶4∶3、Ｒ5=2∶3∶5．3Ｒ1．Ｒ3Ｒ4Ｒ496.4%ρNH+4-N3.2mg/LＲ1O-2Ｒ4．3ρNH+4-N、ρNO－x-NFig．3VariationofρNH+4-NandρNO－x-NatdifferentinfluentflowratedistributionratiosＲ52222ρNH+4-N．Ｒ2Ｒ5．3Ｒ1A-1、A-2A-3．2NO－x-NA-3NO－x-N．Ｒ2Ｒ5A-2A-3．Ｒ3Ｒ4A-1、A-2NO－x-NρNO－x-N．Ｒ3、Ｒ4TN．4Ｒ4TN78.38%ρTN22.7mg/L．2.2HＲT、．9、11、14h．704120134ρTNFig．4ＲemovalefficiencyofρTNatdifferentinfluentflowratedistributionratios．5HＲT14、11、9h96.1%、94.2%、89.5%．．5HＲTρNH+4-N、ρNO－x-NFig．5VariationofρNH+4-NandρNO－x-NatdifferentHＲTρNO－x-N5A-1、A-2ρNO－x-N3mg/LA-1、A-2A-3A-1、A-2ρNO－x-N1A-3A-1、A-2COD3A-3．TN6ρTNTN84.2%、79.3%、64.1%．8-9HＲT、．、NO－x-N14h、11hρTN11h．6HＲTρTNFig．6VariationofρTNatdifferentHＲT2.3ρDO．A/O、．ρDOρDOTN．ρDO10-11．ρDOTN．ρDO2.0、3.0、4.05.0mg/L．ρDOρNH+4-N7ρDO78.4%、84.8%、95.3%、96.4%．ρDOρDOρNH+4-N．ρDO．ρDO4.0mg/L5.0mg/L1.1%ρNH+4-N4.3mg/L3.2mg/L．7ρDO．．7ρNO－x-NρDOρDO．804197ρDOρNH+4-N、ρNO－x-NFig．7VariationofρNH+4-NandρNO－x-NatdifferentρDO8ρDOTN65.8%、72.2%、80.2%、76.4%ρDOρDOρDO．8ρDO=4.0mg/LρDO=5.0mg/LTN67.8%ρDO=4.0mg/L71.3%ρDO．ρDO、、．8ρDOTNFig．8ＲemovalefficiencyofTNatdifferentρDO2.49NH+4-NCOD13℃COD、NH+4-N84.9%、63.8%25℃COD、NH+4-N90.9%、93.2%．NH+4-NCOD．20～30℃15℃5℃12．9ρCOD、ρNH+4-NFig．9ＲemovalefficiencyofρCODandρNH+4-Natdifferenttemperatures2.5．．Ｒ=1.0、1.5、2.0．10Ｒ=1.0、1.5、2.0COD91.4%、92.9%、93.5%COD．Ｒ=1.0、1.5、2.0TN81.8%、75.5%、70.4%11Ｒ=1.010ρCODFig．10ＲemovalefficiencyofρCODatdifferentrefluxratios11ρTNFig．11ＲemovalefficiencyofρTNatdifferentrefluxratios90412013TN71.3%TN．．2.6CODTN3∶4∶3、HＲT=11h、ρDO=4.0mg/L、Ｒ=1.0ρTNρCOD12ρCODρCOD30mg/LCOD90%．ρTN20mg/LTN80%．ρTNρCODTN．12TN、ρDOρDO、．、、、SNDsimultaneousnitrificationanddenitrification．、．12ρTN、ρCODFig．12VariationofρTNandρCODatoptimalconditions2.7TPρTP4.6～6.5mg/LρTP3.5～5.0mg/L．．FeSO435mg/LTP93%ρTP0.45mg/L．2.8．HＲT=11h、3∶4∶3、ρDO4.0mg/L、25℃、1.00.100.40～0.551/4～1/5．13-163．3Table3SludgeyieldcomparisonofsimilarprocessesUASB+MBBＲ0.32SBBＲ0.17A2/O0.14～0.42SBＲ0.210.151、、、、、172、、18-20．．10×4001419、、、13．．13Fig．13Microscopephotographsofmicro-organismsonthecarrier313∶4∶3HＲT11hρDO4.0mg/L25℃Ｒ=1.0．2ρTN、ρNH+4-N、ρCOD80～130、75～100、260～400mg/LρTN20mg/LρNH+4-N、ρCOD5.0mg/L、30mg/LTN、NH+4-N、COD80%、95%、91%．3、．0.10．1deBABＲADＲILOCCAＲＲIOLMAHONEYKetal．PracticalconsiderationfordesignofastepfeedbiologicalnutrientremovalsystemJ．FloridaWaterＲesourcesJournal20024021803-823．2．J．2011327-30．HUIJinWANGBing-songZHANGFeng-jun．StudyonthecarrierascarbonsourceanditsapplicationonthetreatmentoflowC/NwastewaterJ．EnvironmentalProtectionScience2011327-30．inChinese3．J．200935101396-1401．LIJunＲENJianYANGXiao-dongetal．Thechemical-aidphosphorusremovalfrommunicipalwastewaterwithlimitedcarbonsourceJ．JournalofBeijingUniversityofTechnology200935101396-1401．inChinese4ＲOXBUＲGHＲSIEGEＲＲJOHNSONBetal．Sludgeminimizationtechnologies-doingmoretogetlessJ．ProceedingsoftheWaterEnviromentFederation2006111506-525．5．J．2007331050-53．MAJian-liZHAOYou-caiZHANGHuaetal．Ｒesearchonmethodsofsludgedisp