AWWA ACE56232

AWWA ACE56232 Evaluating Chloramination Factors and NOM Characteristics in the Formation of DXAA
Conference Proceeding by American Water Works Association, 06/16/2002

Martin-Doole, Melanie; Collins, M. Robin; Speitel, Gerald E., Jr.; McKetta, John J.; Pope, P. Greg

More info

Full Description

Batch experiments were conducted on two diverse water sources as well as on the treated waters and selected natural organic matter (NOM) fractionations of the source waters to study the formation of dihaloacetic acids DXAAs) during chloramination. Chloramination factors contributing to the formation of DXAA, including pH, mass ratio of chlorine to ammonia-nitrogen (Cl2/N), chloramine residuals, temperature, and bromide concentration were evaluated and compared using factorial experimental designs. The resulting data emphasized the importance of pH, water source/type and bromide concentration (in that order) on DXAA formation. Includes 11 references, tables, figures.