废水生物脱氮新技术研究进展高剑平

GUANGXIJOURNALOFLIGHTINDUSTRY201077140【】、。40%-60%50%-60%。。NH4+NO2-[1]。—shortcutnitrification-denitrification、—smiultaneousnitrification-denitrificationSNDanaerobicammoniumoxidationANAMMOX。2.1—。NH4+NO2-NO2-NO3-。NO3-NO2-N2。NH4+NO2-NO3-N2—1。NH4+→NO2-→NO3-→NO2-→N2NH4+→NO2-→N2|←────→|←───→|b—a————125%240%3NO2-NO3-63%430%~40%533%~35%55%6[1-3]。—Delft1997SHARONsinglereactorforhighammoniaovernitrite。CSTR0.5gN/L。30~40℃[45]。1HRT234。SHARON12NO2-。2.2——。、SNDSND。SNDSND[5]。Thiosphaerapantotrpha、PseudomonasSpp、Alcaligenesfae-calisNH4+[6]。SNDRittmann[7]363000【】、。【】——【】X703【】A【】1003-2673(2010)07－89－0289574。5250mm。。。SND。Gupta[8]SND。YooH.[9]SNDCOD/N5110190%。SND。[10]SNDSNDDO、、、pH、。SND、、。2.3ANAMMOXNH4+NO3-NO2-NH4+、NO3-NO2-N2。1995MulderVandegraaf[11]5NH4++3NO3-→4N2+9H2O+2H+△Go=+297kJ/molNH4+NO2-NH4++NO2-→N2+2H2O△Go=-358kJ/molNH4+ANAMMOXOLAND。ANAMMOXDelft[12]。ANAMMOXNH4+、NO2-NO3-。。123。OLANDGent。NH4+NO2-NH4+NO2-N2。DONO2-DO。、、。。———90