AO工艺处理炼油废水的效果分析及对策颜家保

273()Vol.27,No.320049J.ofWuhanUni.ofSci.&Tech.(NaturalScienceEdition)Sep.2004　　:2004-01-09　　:(99A118).　　:(1964-),,,.A/O1,2(1.,,430081;2.,,430080):针对炼油废水A/O工艺氨氮去除率低的问题,运用生物脱氮原理对其影响因素进行了分析。论述废水强化预处理除油的重要性,提出应根据废水水质选择合理的硝化工艺,并提出了改进现有工艺的措施。:炼油废水;A/O工艺;氨氮去除:X785　　:A　　:1672-3090(2004)03-0254-03　　、,、,[1]。,A/O。COD,,。,A/O,。1　[2],,。:(1):2NH+4+3O22NO-2+4H++2H2O+350kJ2NO-2+O22NO-3+75kJ2NH+4+4O22NO-3+2H2O+4H++425kJNO-2(Nitrosomonas)NO-2NO-3(Nitrobacter)。,,,,。,,。(2):2NO-2+6HN2+2H2O+2OH-2NO-3+10HN2+4H2O+2OH-,,,COD。2　2.1　1996A/O。,,,COD,A/O,NH3-NCOD。A,O,A,O。300m3/h,A12h,O30h。,COD、、、SS,NH3-N,15mg·L-1。,,,NH3-NCOD,。1993A/O,,25%。1995,1.32.3,,35%[3]。A/O,,,A/O,O1-O2,,NH3-NCOD[4],,。2.2　,,,,,。,,。,,,,,。,,,,A/O,。:(1)。,,22mg·L-1,;32mg·L-1,,。,。,,、,。H+,1kg,7.14kg,,pH。,CO2,HCO-3CO2-3,,。[5],50mg·L-1,CO2,,5～10。,Na2CO3NaHCO3NaOH。(2):①。。,,DO2～3mg·L-1。,,,,,,DO0.5mg·L-1;②。30～35℃,5～35℃,;20～40℃,15℃,。,20～35℃,,;③pH。H+,OH-,、(A/O),,。,pH7～7.8。,pH6.5,。(3)。20～50mg·L-1,BOD50.1kgBOD5/kg·d,BOD5,,。:①A。,,,,,A。A,COD,A/O;②O。,,,。A/OO30h,40h。O,COD,,,,,[5]。,,,,,,,,。3　3.1　,COD,,,。,,,,;,,,A/O,。,25520043　　　　　,:A/O,。,,,。3.2　[6]COD,。,CO2,NH3。,,CODNH3。,,,,,。COD,。,,,,。3.3　,,。,2～3,,,;,,。,,。,,,。,、,,,、。,、、、,,,。[1]　,,,.[J].,2002,28(2):52—56.[2]　,,.[J].,2002,22(1):43—48.[3]　.[J].,1996,(2):11—17.[4]　,,.A/OO/O[J].,2000,18(1):21—23.[5]　.[P].:55-109497,1980-08-22.[6]　.[J].,1994,20(8):25—28.RemovingAmmoniaNitrogenfromRefineryWastewaterUsingA/OProcess:EffectAnalysisandImprovementYANJia-bao1,XIAMing-gui2(1.WuhanUniversityofScienceandTechnology,Wuhan430081,China;2.WuhanPetrochemicalPlant,Wuhan430080,China)Abstract:InviewofthelowammonianitrogenremovalefficiencyofwhenusingA/Oprocesstotreatrefinerywastewater,biologicalnitrificationanddenitrificationtheoryisutilizedtoanalyzerelevantinfluencingfac-tors.Importanceofunoilingaspretreatmentinthewholeprocessisdiscussed.Itisproposedthatreasonablenitrifica-tionprocessshouldbeselectedonthebasisofwastewatercharacteristics.Improvementontheexistingtechniqueisalsopresentedinthepaper.Keywords:refinerywastewater;A/Oprocess;ammonianitrogenremoval[　]256　　　　　　　()　　　　　　　　　20043