AWWA WQTC63964

This slide presentation outlines a study on chlorine residuals and N-DBPs formation from monochloramination of model N-organic compounds. Results included: concentrations of total chlorine and monochloramine residual decreased with increasing reaction time; formation of organic chloramines from glycine, methylamine, and glycylglycine were in higher quantities than that from other five compounds; CNCl was formed for all the N-organic compounds tested and DCAN and chloropicrin was generated from some of the tested compounds; nitrogen in CNCl and DCAN was from both monochloramine and nitrogenous compounds, but the percentage of incorporation of from these two nitrogen sources varied among different compounds; and, pH and monochloramine to glycine ratio affected CNCl formation and sources of nitrogen. Includes 8 references, tables, figures.