半硝化厌氧氨氧化脱氮新工艺汪慧贞

-＊汪慧贞　吴俊奇(,100044)　高志明(,810001)　介绍了半硝化-厌氧氨氧化脱氮新工艺,分析了它的机理、环境条件要求及可持续意义。　半硝化　厌氧氨氧化　脱氮　　　　　　　　＊1　、、、;;,BOD5mgL。,BOD570%,,、mgL。,(、),500～1000mgL。,10%～20%。,,,。,。。pHNH+4NH3+H+,pH11,90%NH3,。80%,,NH3。,,。、SBR、、AB-,。,。4.57g,1g4.57g,。,。,(),,CN,。,,BOD5,。,SHARON(SingleReactorforHighAmmoniumRemovalOverNi-trite,)ANAMMOX(AnaerobicAmmoniumOxidation,)。2　SHARONANAMMOX[1]2.1　原理SHARON:NH+4+HCO-3+0.75O20.5NH+4+0.5NO-2+CO2+1.5H2O(1),50%,50%。,,。ANAMMOX:NH+4+NO-2N2←+2H2O(2),,。(2):0.5NH+4+0.5NO-20.5N2←+H2O(3)Mulder:,,N2。。(1)(3),1molNH+4(1)NH+4NO-20.5mol,(3),0.5molNH+40.5molNO-20.5mol,。。2.2　反应条件SHARON2,,7　　　200110195DOI:10.13205/j.hjgc.2001.05.001。(1)1molNH+41molHCO-3,,pH,6.4,,。25℃。。1。15℃,,(35℃),,(NO-2)。1　ANAMMOX30～37℃,pH7.0～8.5,。2.3　工艺流程SHARON,(2),,,。11d。2　SHARONANAMMOX。,,(),。1Delft,。SHARON0.8kgm3·d,pH,,HCO-32000mgL(CaCO3),ANAMMOX。1　SHARON-ANAMMOXmgLSHNRONANAMMOXNH+458426729NO-212271.4NO-316483NO211476　　1,SHARON,NH+4,ANAMMOX,NH+429mgL,95%。,,,,SHARONNH+4NO-2-NO-3NO-3。,,NO-3。SHARON,,。Dokhaven,47,AB。600m3d,pH8.0～8.5,30℃,1gL。,。15%～20%。19981dSHARON,50%NH+4NO-2。,NH+4NO-2N2,NH+4NO-2B,B[2]。3　“21”,。、。:(1)(COD);(2)CO2;(3)———(CH4)。,NH+4NO-3,,,(14MJkgCOD),。8　　　200110195　　SHARONANAMMOX-(45),50%,。NH+4+1.5O2※NO-2+H2O+2H+(4)NO-2+0.5CH3OH※0.5N2+0.5CO2+OH-+0.5H2O(5)SHARON-ANAMMOX,Dokhaven,600m3d,2。,。,,。,,。ANAMMOXANOXICAMMONIUMOXIDATION。,NO-2。1　MikeS.M.Jetten,TowardsaMoreSustainableMunicipalWastewaterTreat-mentSystem,Wat.Sci.Tech1997.5(9):171～180.2　C.Hellinga,ModelbasedDesignofaNovelProcessforNitrogenRemovalfromConcentratedFlows,MathematicalandComputerModellingofDynami-calsystems,1999.5(4):351～371.　,,1944,1966,1981,。、、。1999-07-08MBR张　军　吕伟娅(,210009)　　　聂梅生(,100835)王宝贞(,150090)　MBR是将生物处理与膜分离技术相结合而成的一种高效污水处理新工艺。国内外MBR工艺在城市污水处理、中水回用、高浓度生活污水处理以及垃圾渗滤液处理等方面的应用实践经验表明,MBR工艺具有常规污水处理工艺无法比拟的优势,其在污水处理与回用事业中的应用前景非常广阔。　膜生物反应器　MBR　污水处理　污水回用1　MBR(MembraneBio-reactor,MBR)。MBR2。,(a)(b)2,。MBR,,,。、,　MBR(3～6ms),。,MBR(cross-flow)MBR。,9　　　200110195ANEWPROCESSOFDENITRIFICATIONBYSHARON-ANAMMOXWangHuizhenetal(7)………Abstract　Anewprocessofdenitrificationbysinglereactorforhighammoniumremovalovernitrite-anaerobicammo-niumoxidation(SHARON-ANAMMOX)isintroducedinthispaper.Themechanism,environmentaldemandsandsustainablesignificanceoftheprocessarealsoanalysed.Keywords　nitrogenremovalovernitrite,anaerobicammoniumoxidationanddenitrificationPRACTICALAPPLICATIONOFMBRINWASTEWATERTREATMENTANDREUSEZhangJunetal(9)……………………………………………………………………………………………………………Abstract　Themembranebioreactorisanewefficientwastewatertreatmenttechnologydevelopedrecentlywhichcom-binedbiologicaltreatmentwithmembraneseparationprocesses.PracticalapplicationsofMBRinmunicipalwastewatertreat-ment,buildingdomesticwastewaterreuse,highconcentrationdomesticwastewatertreatment,andthetreatmentofsolidwastelandfillleachatebothathomeandabroadwereintroducedinthispaper.ItwasprovedbymanypracticalexperiencesthatMBRprocesspossessesmanyadvantagesthattheconvenionalmethodcannotmatch.MBRprocesshasabroadapplicationprospectforwastewatertreatmentandreuse.Keywords　membranebioreactor,MBR,wastewatertreatmentandwastewaterreuseSTUDYONKINETICSMODELOFSINGLE-STAGEBIOLOGICALDENITRIFICATIONWITHIM-MOBILIZEDCELLSCaoGuominetal(12)…………………………………………………………………………Abstract　Thenitrifyingbacteriaanddenitrifyingbacteriawereimmobilizedwithpolyvinylalcohol(PVA)byiterativefreezingandthawing.Thekineticmodelofsingle-stagebiologicaldenitrificationbyimmobilizedcellsinabubble-columnbioreactorwasstudied.Theresultsshowedthattheeffectofinternaldiffusionontheoverallratecouldbeneglected,andthelimitingrateprocesswaschemicalreaction.ThereactionkineticsofimmobilizedcellscouldbeexpressedasMonodequationanditskineticsconstants,ksandvmax,were303.0mgLand0.096mg(L·s)respectively.Agoodagreementwasobservedbetweenthepredicteddenitrificationrateandtheexprerimentalone.Keywords　biodenitrification,immobilizedcellandkineticsmodelTREATMENTOFWASTEWATEROFPRINTINGINKANDADHESIVEBYCOAGULATIVEFLOA-TATION-MICROELECTROLYSIS-SBRPROCESSLiuLinetal(16)………………………………………Abstract　Anengineeringexampleoftreatingthewastewaterofprintinginkandadhesivefromtheproductionofpa-perboardboxbycoagulativefloatation-microelectrolysis-SBRprocessisintroducedinthispaper.Thewastewatertreatedwiththisprocesscanmeetthefirst-orderofthenationaldischargestandard.Theprocessfeatureslesslandoccupation,goodeffec-tiveness,reliableandstablerunningsetc.Keywords　wastewaterofprintinginkandadhesive,coafulativefloatation,microelectrolysisandSBRSTUDYONELECTROLYSISBATHOFACTIVATEDCARBONFIXED-BEDCaoJinghuaetal(18)…Abstract　Theelectrolysisbathofactivatedcarbonfixed-bedforwastewatertreatmentisdevelopedbasedontheanaly-sisofallthefactorsaffectingelectrolysisbathperformance.Theelectrolysisbathoftheactivatedcarbonfixed-bedisalsocomparedwithconventionalelectrolysisbathsinenergyconsumption,takingphenolwastewaterassubstrate.Theresultsshowthattheelectrolysisbathoftheactivatedcarbonfixed-bedcansave30%～40%ofenergyunderthesamedephenolizing2ENVIRONMENTALENGINEERINGVol.19,No.5,October,2001