CHED 831 |
| Luay Shayya, Timothy J. Paslay, David M. Robinson, and Gordon H. Purser. |
| Chloramine is being considered as a residual disinfectant for treated water as it produces fewer disinfection byproducts than chlorine. Prior to a variety of uses, the chloramines must be removed and leave only innocuous products behind. The reaction of chloramine with hydroxylamine serves this purpose, and when an excess of hydroxylamine reacts with chloramines. However, when nearly equal molar amounts of hydroxylamine and chloramine concentrations are mixed at a pH of about 8, a new, relatively stable species is produced. This new species reacts with excess of hydroxylamine to form the same non-toxic products, thus implying that it is an intermediate in the chloramines-hydroxylamine reaction. There is evidence that this species is chlorohydroxylamine. This presentation will outline the equilibria and kinetic data supporting this hypothesis. |
|
Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |