AOMBR处理高氨氮废水的短程硝化研究李强

A/O—MBR11111121．1001242．100022A/O—MBR。pH、、DO。A/O—MBR25～28℃、pH7．5～8．5、120～1500mg/L、DO2．5mg/L58．9%93．2%。DO1．5mg/L90%87．5%。A/O—MBRX703A1000－4602201301－0034－05Short-cutNitrificationinA/O－MBRforTreatmentofHigh-concentrationAmmoniaNitrogenWastewaterLIQiang1LIJun1LIYan1XIONGDi-cheng1LIUGuo-yang1LIUWei-yan121．CollegeofArchitectureandCivilEngineeringBeijingUniversityofTechnologyBeijing100124China2．BeijingDrainageGroupCo．Ltd．Beijing100022ChinaAbstractTheA/O－MBRprocesswasusedtotreatsimulatedhigh-concentrationammonianitro-genpesticidewastewaterandtheremovaleffectofammonianitrogenwasinvestigated．Theshort-cutni-trificationwasimplementedbycontrollingpHvaluetemperatureanddissolvedoxygenDOandtheaffectingfactorswerestudied．WhenthetemperaturepHvalueinfluentammonianitrogenandDOwere25to28℃7．5to8．5120to1500mg/Land2．5mg/Lrespectivelytheaccumulationrateofnitritenitrogenaveraged58．9%andtheremovalrateofammonianitrogenaveraged93．2%．WhenDOwas1．5mg/Landotherconditionswereunchangedtheaccumulationrateofnitritenitrogenwasmorethan90%buttheremovalrateofammonianitrogenwasreducedto87．5%．Keywordsshort-cutnitrificationhigh-concentrationammonianitrogenwastewaterA/O－MBRprocessbiologicaldenitrification51078008KZ2011100050088122005004000546612010C/N。、、、12Voets·43·29120131CHINAWATER＆WASTEWATERVol．29No．1Jan．2013。MBR。11.11MBR“—”。A/O91．1L75L。1∶2。PVDF0．1μm0．5m210～20L/m2·h。。DO1．5～3．5mg/L25～28℃pH7．5～8．5200%HRT25h。1/—Fig．1Schematicdiagramofanoxic/aerobic－membranebioreactor1.2DOpHHACHpHMLSSN－1－－。1.33500mg/L。NH4Cl、、。CODCODCOD20%～30%。30d。1。1Tab．1CharacteristicsofinfluentpH6～9COD/mg·L－1200～600BOD5/mg·L－180～150NH+4－N/mg·L－1120～1500TN/mg·L－1210～1520SS/mg·L－120～80/℃10～3022.12A/O—。120mg/L1500mg/L1～248mg/L73．0%～98．8%90．6%。。pH5．9。pH7．5～8．5。31DO3．5、2．5、1．5mg/L95．7%、93．2%、87．7%。2/—Fig．2Removalefficiencyofammonianitrogenbyanoxic/aerobic－membranebioreactor2.2pH7．5～8．50～35d3535～50d50%50%60·53·．watergasheat．comA/O—MBR291～7594．5%MBR3。3、Fig．3Effluentnitrateandnitriteconcentrationsandaccumulationrateofnitrite2.3。0～35d。252L2L。130mg/LCOD350mg/LDOpH7．5～8．5。4。4Fig．4Aerobicsludgenitrificationincompletenitrificationstage60～75d685。45NO－3－NNO－2－N。。5Fig．5Aerobicsludgenitrificationinshort-cutnitrificationstage2.42.4.1pHpHpHpH3。pHpHpH7．0～8．56．0～7．54。SchuchpH＞7．8Hayes58．5。pH7．5～8．5pH。2.4.2。12～14℃＞30℃6。74～45℃20～30℃。25～28℃。2.4.3。pHDO。30～43dDO3．5mg/L·63·291．watergasheat．com21．3%95．7%452．5mg/L50%～65%93．2%611．5mg/L94．5%87．7%。DODO。DO。DO2．5mg/L100mg/LNO－2－N58．9%DO2．5mg/L。2.4.4FA、。AbelingFA1～10mg/L。Aathonisen10～150mg/L。。pH。6FA。6FAFig．6RelationshipbetweenfreeammoniaandnitriteaccumulationratepH7．5FA1．5～32mg/L。6FA。FA。2.57。20dMLSS36412956mg/L。。50COD。、、70dMLSS70208912mg/L。7Fig．7ChangesinsludgeconcentrationVSS/SS。VSS/SS30d0．65～0．8。3①A/O—MBR98．8%73．0%90．6%。DO100mg/L。。·73·．watergasheat．comA/O—MBR291②DO1．5～2．5mg/L、pH7．5～8．5DO2．5mg/L50%93．2%。③。1RuizGJeisonDChamyR．NitrificationwithhighnitriteaccumulationforthetreatmentofwastewaterwithhighammoniaconcentrationJ．WaterRes20033761371－1377．2．J．2000203207－210．3．J．200430112－14．4HellingaCSchellenAMnlderJWetal．TheSharonprocessAninnovativemethodfornitrogenremovalfromammonium-richwastewaterJ．WaterSciTechnol1998379135－142．5HayesEUptonJBattsRetal．On-linenitrificationin-hibitionmonitoringusingmimobilisedbacteriaJ．WaterSciTechnol19983712193－196．6．M．2006．7．J．20001611－18．1988－。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2012－09－103311LimSJAhnYHKimEYetal．Nitrateremovalinapackedbedreactorusingvolatilefattyacidsfromanaero-bicacidogenesisoffoodwastesJ．BiotechnolBiopro-cessEng2006116538－543．12．pHJ．2005255665－669．13．pHJ．2006275991－997．14LimSJKimBJJeongCMetal．Anaerobicorganicacidproductionoffoodwasteinonce-a-dayfeedinganddrawing-offbioreactorJ．BioresourTechnol200899167866－7874．15BabelSFukushiKSitanrassameeB．Effectofacidspe-ciationonsolidwasteliquefactioninanaerobicaciddi-gesterJ．WaterRes20043892417－2423．1988－。[e-mail]2012－08－29·83·291．watergasheat．com