The Trihalomethanes Formation Potential in Treated Waters Exposed to Ozone and Chlorine

Abstract:

The present study was implemented to investigate the trihalomethanes formation potential (THMFP) in drinking water treatment and to determine the impact of preozonation on the reduction of Trihalomethanes (THMs). The full-scale examination was carried out, using Luan River as the raw water. Two different preoxidation methods, prechlorination and preozonation were performed. THMFP and THM species were analyzed. The investigation indicated that 18.72% of THMFP was removed during preozonation. Further study on the distribution of THM species showed a significant reduction of Chloroform and bromodichloromethane, 20.62% and 17.39% during preozonation, respectively. The result suggested that the application of preozonation process is an effective method for reducing THMs generation in drinking water treatment. In the final effluent, the total removal rates of THMFP were 47.49% after preozonation and 55.67% after prechlorination.

• Periodical: Applied Mechanics and Materials (Volume 700)
• Pages: 542-546
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.700.542
• Online since: December 2014
• Authors: Shan Chao Yue*, Le Jun Zhao, Xiu Duo Wang, Qi Shan Wang, Feng Hua He
• Keywords: Full-Scale, Prechlorination, Preozonation, THM

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