城市污水脱氮除磷中的化学问题

:2007-10-09:(1972-),,,ChemicalProblemsduringNitrogenandPhosphateRemovalofMunicipalWastewaterTreatment(110141),,pHAbstractThispaperdiscussedthesources,existentformsandharmofnitrogenandphosphateinwastewater.Accord2ingtotheremeralmechanismofnitrogenandphosphateinmunicipalwastewater,thepH,sludgeageandcarbonsourceoftheprocesswerediscussed,aswellasthenewdenitrifiedprocess.KeywordsNitrogenandPhosphateRemovalMunicipalWastewaterChemicalProblem1:,(R4N+-N),(NH+4-N),,,22.12.1.1,,,:RCHNH2COOH+O2RCOOH+CO2+NH3(1)2.1.2,,,,(NH4+),:NH+4+3/2O2NO-2+2H2O+2H+-F(F=278142kJ)(2),,:NO-2+1/2O2NO-3-F(F=72127kJ)(3):NH+4+2O2NO-3+H2O+2H+-F(F=351kJ)(4)2.1.3(NO3-N)(NO2-N),(N2)NO-3+5H2A()N2+20H-+4H2O+5A(5)2.22.2.1,0634320086©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.():ADP+H3PO4+ATP+H2O(6)H3PO4,H3PO4H3PO4ATP,2.2.2,ATP,H3PO4,ADP,:ATP+H2OADP+H3PO4+(7),,H3PO4,H3PO433.1,pH,pH710815610715,pH610916,,,pH(pH=515),pH,;pH,pH710815,pH,pH815610,,pH,pH713,713N2O,25pH81542%,pH710815%,pH610pH,pH615710,pH615,pH512,pH,3.2(,SRT),,30d,,5d,,12d8d,5d,3d,,,,,,;,,,PHB,,3.3,,(VFA)COD,;Gerber(),VAFs,BOD/TKN46,,,COD,,BOD/COD014,,COD,COD,COD,,VFA3.41975,VoetsNO-2,NO-2,16©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:PH718818;NH+4-N,NH+4-NNO-2-NNO-3-N;NO-2-NNO-2-N;,50%,;,,,,,3.5(DPB).PHA,,.COD50%30%50%COD,.CODDEPHANOXDPB,,,,(),,,COD/TKN,4,,,,,,,,,,,1..[M].:,2006.3.2.,,,.[J].,2003,25(2):39-45.3.,,.[J].,2002(3):25-28.4.,.[J].,2003,20(1):85-87.5.,.[J].,2006,20(2):76-77.6.,,,.[J].,2002,21(2):25-29.7.,..,2003,25(2):37-41.8.,.[J].,2002,3(1):41-45.9.,..,2004,25(6):86-88.10.,.[J].,2006,21(2):10-13.11.,.[J].,2006(3):48-50.12.,,,.[J].,2002,15(2):109-111.2634320086©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.