I will present my work on studying the cometabolism of monochloramine by Nitrifiers
'Cometabolism of Monochloramine by Nitrosomonas europaea under Drinking Water Conditions '
An increasing number of water utilities are using monochloramine (NH2Cl) as a residual disinfectant. In spite of monochloramine’s clear benefits regarding disinfection by-products, chloramination presents a major problem: the occurrence of nitrification in distribution systems. A rapid decay of the NH2Cl residual has been associated with the onset of nitrification. Ammonia-oxidizing bacteria, which oxidize ammonia to nitrite, are able to cometabolize other chemicals with similar structures to ammonia. Although much research has been dedicated to NH2Cl decay and nitrification onset conditions, the significance of ammonia oxidizers and NH2Cl cometabolism in NH2Cl loss has not been studied. This research not only demonstrates the importance of NH2Cl cometabolism during nitrification episodes, but also provides an approach for including NH2Cl cometabolism in water quality models.
Hope to see you all on Thursday at 3:30 PM in ECJ 1.204. University of Texas at Austin
An increasing number of water utilities are using monochloramine (NH2Cl) as a residual disinfectant. In spite of monochloramine’s clear benefits regarding disinfection by-products, chloramination presents a major problem: the occurrence of nitrification in distribution systems. A rapid decay of the NH2Cl residual has been associated with the onset of nitrification. Ammonia-oxidizing bacteria, which oxidize ammonia to nitrite, are able to cometabolize other chemicals with similar structures to ammonia. Although much research has been dedicated to NH2Cl decay and nitrification onset conditions, the significance of ammonia oxidizers and NH2Cl cometabolism in NH2Cl loss has not been studied. This research not only demonstrates the importance of NH2Cl cometabolism during nitrification episodes, but also provides an approach for including NH2Cl cometabolism in water quality models.
Hope to see you all on Thursday at 3:30 PM in ECJ 1.204. University of Texas at Austin