Lee, Cheong Hong (2008) Factors affecting the formation of trihalomethanes during Water chlorination: A bench-scaled study. Universiti Malaysia Sabah. (Unpublished)
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Abstract
This study aimed to evaluate the role of chlorine dose, temperature and contact time on the formation of THMs as a result of chlorination of swamp water. All samples were extracted using purge-and-trap (PAT) technique followed by determination of trihalomethanes by gas chromatography-electrolytic conductivity detectors (GC-ELCD). Pearson correlation was applied during data analysis. Concentration of trihalomethanes increased progressively as chlorine dose increased from 2 mg/L to 8 mg/L with strong relationship between them. The relationship between temperature and trihalomethanes was weak. The reaction rate of trihalomethanes formation increased as temperature increased from 4 °C to 35°C but showed a decreased at 25°C. Increase in contact time from 4 hours to 12 hours showed strong relationship with trihalomethanes except bromodichloromethane. This result indicated that presence of trihalomethanes in water was exclusively due to chlorination.
| Item Type: | Academic Exercise |
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| Keyword: | chlorine dose, temperature, contact time, purge-and-trap, gas chromatography-electrolytic conductivity detector, temperature, trihalomethanes, chlorination |
| Subjects: | Q Science > QD Chemistry |
| Department: | SCHOOL > School of Science and Technology |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 27 Feb 2014 11:42 |
| Last Modified: | 12 Oct 2017 13:30 |
| URI: | https://eprints.ums.edu.my/id/eprint/8371 |
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