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300457.A/O1∶1、BOD50.95mg/L96.10%BOD.X703A1671－024X201006－0050－04Researchofstep-feedenhancednitrificationPANGJin-zhaoPENGMin-junCollegeofMarineScienceandEngineeringTianjinUniversityofScienceandTechnologyTianjin300457ChinaAbstractNitrationisacrucialprerequisitefornitrogenremoval.Byusingthedomesticwastewaterandsaltwastewaterasexamplestheeffectofstep-feeddistributionratioonnitrificationisstudied.Theresultsshowthatintheratioof1∶1carbonandnitrogensourcesisreasonablydistributedBOD5andammonianitrogenratioissuitablewhilemaintainingthelownutritionalstatustheeffluentammonianitrogenreached0.95mg/Ltheremovalrateashighas96.10%.Saltwasterwatertestisfurtherconfirmedthatthenitrificationhasbeenstrengthenedbythestep-feedmethod.TherateofdeclineBODhasbeeneffectivelyreducedinfrontreactorandremovalrateofammonianitrogenhasbeenimprovedsignificantly.Keywordsstep-feednitrationnitrogenremovalhigh-saltwastewater2010-08-131946—.1946—.E-mailjzpang@sina.com296201012JOURNALOFTIANJINPOLYTECHNICUNIVERSITYVol.29No.6December2010..BOD5NH4+-NBOD5.BOD51~3[1].BOD5BOD5NH4+-N.BOD5NH4+-N.Zhang[2]、.ECOSUNIDE4[3].A/ONH4+-NECOSUNIDEA/O-NH4+-N.、6A/O.11.11.2.1.21.2.11∶515d..SV15%13NTU18%88.48%.1.2.2A/O168L156L....1.3COD..BODBOD5NH4+-N.1000t/h.2204#、9#、13#、17#120t/h.1.4、pH、MLSS、、COD、BOD5、.、pH、.22.12.1.1.6.8h、7.8h5~620℃aQ1Q2.a=1/6、1/4、1/2、1/1、2/14/1.a3.1Tab.1Qualityofsewagesmallpilot2Tab.2Qualityofsaltwastewater/℃18.025.015pH7.597.907.29SS/mg·L-169.788.046.2CODCr/mg·L-1181.0240.043.0BOD5/mg·L-184.692.319.6NH4+-N/mg·L-126.3311015TP/mg·L-12.43.850.6/NTU52.5157.640.6CODCr/mg·L-11000400NH4+-N/mg·L-13010/℃3528pH1210Cl-/mg·L-11500010000，：51——29、.a=1/1Q1.3a=1/10.95mg/L96.10%..Q2a=1/1a=1/1Q2BOD.0.5~0.7BOD1~3..aa=1/1.a1NH4+-Na1BODBOD.2.1.2COD4aCOD.4a=1/6、1/4CODa=1/2、1/1.a=1/6、1/4.a=2/1、4/1COD.2.1.3a=1/1A/Oa=1/05.5A/O10%96.10%.BODCOD.Q1Q2BOD1mg/L.2.22.2.14#、9#、13#、17#120T/h5#、10#、15#、20#5#、10#、15#、20#6.6a35#52——6.6b~d.4#、9#、13#、17#.6a~d8~114.2.2.2BOD7BOD5.720#BOD55#BOD5BOD5BOD5.31A/O96.10%0.95mg/L.2BODBOD.31∶1.[1].[M].2.2005.[2]ZHANGYQXUATLIG.Researchondynamicsdesignforactivatedsludgesystem[J].JournalofChinaUniversityofMin－ing&Technology2002122148-151.[3].[J].2008242413-15.[3].[J].200671083-87.，：53——