| Title: | Effects of thermal treatment on halogenated disinfection by-products in drinking water |
| Author(s): | Wu WW; Benjamin MM; Korshin GV; |
| Address: | "Department of Civil and Environmental Engineering, University of Washington, Seattle 98195-2700, USA" |
| DOI: | 10.1016/s0043-1354(01)00080-x |
| ISSN/ISBN: | 0043-1354 (Print) 0043-1354 (Linking) |
| Abstract: | "The influence of heating or boiling on the formation and behavior of disinfection by-products (DBPs) was investigated in DBP-spiked reagent water, municipal tap water, and synthetic water containing chlorinated aquatic humic substances. Thermal cleavage of larger halogenated species leads to both formation of smaller chlorinated molecules (including THMs and HAAs) and dechlorination of organics. In parallel with their formation from larger molecules, THMs can be volatilized, and this latter process dominates the change in their concentration when water is boiled. HAAs are not volatile, but they can be destroyed by chemical reactions at elevated temperatures, with the net effect being loss of trihalogenated HAAs and either formation or loss of less chlorinated HAAs. Although other identifiable DBPs can be generated at slightly elevated temperatures, in most cases their concentrations decline dramatically when the solution is heated" |
| Keywords: | Chlorine Compounds/*chemistry Disinfectants/*chemistry Halogens Humic Substances Oxidants/chemistry Temperature *Water Purification *Water Supply; |
| Notes: | "MedlineWu, W W Benjamin, M M Korshin, G V eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. England 2001/09/20 Water Res. 2001 Oct; 35(15):3545-50. doi: 10.1016/s0043-1354(01)00080-x" |
