pH值及温度对皮革废水短程硝化的影响

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,250353):SBR,,pH:(311),pH718812,;,-,,,pH:pH;;TS59AInfluenceofpHandTemperatureonShortcutNitrosificationofLeatherWastewaterLiYijuan,LiYanchun(SchoolofLightChemistryandEnvironmentalEngineering,ShandongInstituteofLightIndustry,Jinan250353,China)Abstract:InfluenceoftemperatureandpHontheshortcutnitrosificationoftheleatherwastewaterwasstudiedinasequencingbatchreactor(SBR),withtheotherfactorssteady.Theresultsshowthattheoptimalnitrosificationconditionisthatthetempera2tureis(311)andthepHis7.88.2.Inaddition,thenitrosificationisenhancedalotafterthesodiumbicarbonate-sodi2umhydroxidebuffersolutionisaddedintothesystem.TheresultsindicatethatpHisanimportantfactoraffectingthenitrosifica2tion.Keywords:pH;leatherwastewater;shortcutnitrosification,,CODBODCl-NH+4-NCr3+[1],,,,,,,,,,:NH+4NO-2NO-3NO-2N2,,2,,,NO-3NO-2,,,,[2]NO-2-N:(DO)pH(FA)[3]pH1111,COD460mg/L,pH715,NH+4-N200mg/LSBR7238920095CHINALEATHERVol138No19May2009333:,,1984,©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.();2;3;4;5;6;7;1113,N-(1-)-,,CODCr,pH,DO2211SBR6h,2,,,1h30min,600mL,30min450mL,(311),014L/min,pH718812,10d,,60%,22445,1214,HNO2,1530,,30HNO2,pH7815,6715,pH,,,2121,pH718812,014L/min,(251)(311)(361),10d,,,33:(311),,3,,30,,,2,,,,,,,2132pH,pHpH,,(311),014L/min,pH713717,10d,pH71881210d,pH81381710d3,pH,pH,pH,,,,4pH4:pH718812,pHpH,,,pH68,8238©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4]pH718[5]719[6],pH718812,,,66%,,pH,,,H+pH7,,pH,,pH515610,pH,,,32143pH,,pH,pH-,pH,pH,pH55pH5:,,73%,pH718812,80%pH,,,pH3(1),,,(311)(2)H+,-,pH,,,pH718812[1],,.[J].,2004,35(5):12-15[2],,,.[J].,2001,17(5):24-28[3],.[J].,2004,30(8):67-68[4],,,.[J].,2000,16(2):29-31[5],,,.[J].,1994,20(4):230-235[6],,,.[J].,2000,23(3):74-76(:2008-11-28)(26)t=0,,,(0)=0.512%;t,()=0.648%:,,,4(t)Kelvin,99%1Kelvin,2Kelvin,[1],,.[M].:,1990[2],,.[J].,1998[3]ManichAM,BoschT,LongAJ.Meas2urementofcreep,relaxationandbaggi2nessindexesofleather[J].J.Soc.LeatherTechol.Chem,2001,85(4):133-136[4],,.[J].,2007,24(7):6-10[5],.Origin7.5[M].:,2008(:2009-02-02)929pH