Conference proceeding
Chloroform Formation by the Transfer of Active Chlorine from Monochloramine to Phloroacetophenone
Water Chlorination: Chemistry, Environmental Impact and Health Effects. Volume 6. Proceedings of the Sixth Conference on Water Chlorination: Environmental Impact and Health Effects, Vol.6, pp.649-664
01 May 1989
Abstract
Trihalomethanes (THMs) are formed during the chlorination of waters containing precursors, predominantly humic substances, with chloroform being the predominant species. The kinetics and mechanism of THM formation in the reaction between free available chlorine (FAC) and model precursors were investigated by several researchers. This study demonstrated that chloroform can be formed as a product of the reaction between phloroacetophenone (PAP) and monochloramine at a neutral pH. Though the concentration of chloroform formed when monochloramine was the chlorinating agent was two orders of magnitude less than the chloroform concentration formed when FAC was the chlorinating agent, monochloramine could still produce chloroform in concentrations that could pose a health hazard. The kinetics of PAP disappearance were found to be first order in both PAP and the chlorinating agent. The rate constant was about five times greater. Results show that there is a direct transfer of Cl from NH2CL to PAP, leading to the formation of CHCl3 which may be of concern the treatment plant managers that are planning to switch to chloramination from chlorination. (See also W91-00476) (Lantz-PTT)
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Details
- Title
- Chloroform Formation by the Transfer of Active Chlorine from Monochloramine to Phloroacetophenone
- Creators
- C HaasK Topudurti
- Publication Details
- Water Chlorination: Chemistry, Environmental Impact and Health Effects. Volume 6. Proceedings of the Sixth Conference on Water Chlorination: Environmental Impact and Health Effects, Vol.6, pp.649-664
- Conference
- Water Chlorination: Chemistry, Environmental Impact and Health Effects. Sixth Conference on Water Chlorination: Environmental Impact and Health Effects, 6th (Oak Ridge, Tennessee, United States, 03 May 1987 - 08 May 1987)
- Number of pages
- 1
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Identifiers
- 991019189202504721