MBR处理氨氮废水的试验研究84d8521b650e52ea5518989b

MBR1212*1．7100212．325000MBR。MBRMBRCODCrCODCr。MBRCODCr4．8kg/m3·dCODCr88%120～160mg/L10mg/L90%DO1．2、1．8mg/LCODCr90%DOCODCr。8～10d。MBR。MBRX703．1A0517－6611201134－21181－03StudyontheTreatmentofWastewaterwithAmmoniaNitrogenbyMBRLIUYa-huietalCollegeofResourceandEnvironmentShaanxiUniversityofScienceandTechnologyXi’anShaanxi710021AbstractObjectiveTheaimwastostudythetreatmenteffectofwastewaterwithammonianitrogenbymembranebioreactorMBR．MethodWastewaterwithammonianitrogenwastreatedbyusingMBRtechnologythentheremovaleffectofchemicaloxygendemandCODCrandammonianitrogenNH3-NbyMBRwasstudiedfinallytheeffectsofammonianitrogenloadanddissolvedoxygenDOontheremovaleffectofCODCrandNH3-Nwereanalysed．ResultWhentheoperationofMBRwasstableinfluentCODCrloadwasbelow4．8kg/m3·dandtheaverageremovalrateofCODCrwasover88%．Whentheconcentrationofinfluentammonianitrogenwas120－160mg/Landtheconcentrationofeffluentammonianitrogenwasabout10mg/Ltheremovalrateofammonianitrogenreachedabove90%．WhentheconcentrationofDOwas1．2and1．8mg/LrespectivelytheremovalrateofCODCrandammonianitrogenwasover90%．HoweverastheincreaseofDOconcentrationtherewasnoobviousimprovementintheremovalrateofCODCrandammonianitrogen．Inadditionthepollutedmembraneresultedinthedecreaseofmembranefluxsothemembranewasclearedevery8－10days．ConclusionMBRtechnologycouldreachtheanticipatingtargetwhenusedtotreatwastewaterwithammonianitrogenandthetreatmenteffectwasgood．KeywordsMBRAmmonianitrogenWastewaterRemovalrateH20100049。[e-mail]。*[e-mail]。2011-09-14、1。。、、、、2－3。。。、、4。MBR、5－7。MBRHRT。MBRCODCrCODCr。11．1HN3-N95．30～172．16mg/LCODCrBOD1872～2160、652～1370mg/LpH8．7～10．3。1．2MBR48cm×20cm×35cm20L8KMS1。15cm×10cm0．23μm。MBR4。1．2．3．4．5．6．7．。Note1．Sink2．Waterpump3．Flowmeter4．Aircompressor5．Membranemodule6．Reactor7．Manometer．1MBRFig．1MBRexperimentaldevice1．3pH、CODCr、NH3-NDO。pHPHS-25ApHCODCr、NH3-N、DOJPB-607。22．1MBRCODCr2MBR5～8d1L/d25L/dJournalofAnhuiAgri．Sci．2011393421181－21183CODCr0．35kg/m3·d3．40kg/m3·d20∶1～30∶125L/dHRT12hCODCr1700～1800mg/L。CODCr4．8kg/m3·dCODCr100mg/LCODCr5．35kg/m3·dCODCrCODCr。CODCr4．3kg/m3·dCODCr75mg/LCODCr5．35kg/m3·dCODCr100mg/LCODCr。CODCr4．3～4．8kg/m3·dCODCrCODCr88%。2CODCrCODCrFig．2RelationshipbetweeninfluentCODCrloadandeffluentCODCr2．2MBR3MBR30d120～160mg/L10mg/L90%。30d90%。MBR8。MBR。3Fig．3Removalrateofammonianitrogen2．341～30d30～60d60～90d。。。4Fig．4Effectofinfluentammonianitrogenconcentrationonthe2．4CODCr、9。。MBR。1～10、10～20、20～30dDO0．5、1．0、2．0mg/L。5DOCODCr。CODCr90%CODCr。5CODCrFig．5RemovalrateofCODCrunderdifferentconcentrationsofDOCODCr。6DO0．5mg/LDO2811220111．2mg/L90%DO1．8mg/L。、。6Fig．6Removalrateofammonianitrogenunderdifferentcon-centrationsofDO2．5MBR10。MBR。7MBR7MBRFig．7MembranefluxchangesofMBRsystemwithtime1030%。、。47%。8～10d。MBR。3MBRCODCr4．8kg/m3·dCODCr88%90%DO1．21．8mg/LCODCr90%。MBR。2MBR10。8～10d。1MALPEIFBONOMOLROZZIA．Feasibilitystudytoupgradeatextilewastewatertreatmentplantbyahollowfibermembranebioreactorforefflu-entreuseJ．WaterSciTechnol2003471033－39．2HAOWCLIUEHSUNMetal．Studyofwashingsystemofasolid-liq-uid2-phasetubularmembraneJ．TechnoilofWaterTreatment200531277－80．3BRIKM．AdvancedtreatmentoftextilewastewatertowardsreuseusingamembranebioreactorJ．ProcessChemistry2006411751－1757．4．J．201026676－78．5．MBRJ．200927522－24．6．MBRJ．2010364－66．7．MBRJ．2010954－55．8．J．200225535－36．9．J．200935150－53．10FANXJURBAINVQIANYetal．NitrificationinaMembraneBiore-actorMBRforwastewatertreatmentJ．WaterScienceandTechnolo-gy2000423/4檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪289－294．211322“”。。4。、、、。1．———M．2010．2．J．2005189－93．3··．M．．2006．4·P·．———M．2006．381123934MBR