This research used an ultra-membrane filtration system to divide raw water into four different organic groups with different molecular masses. The effects of each organic group on the quantity of disinfection by-products formed after a reaction with chlorine dioxide was investigated. The experimental results show that the four organic groups of different molecular masses were: 10 kD<average molecular mass (AMM)<0.45 µm; 5 kD<AMM<10 kD, 1 kD<AMM<5 kD, and AMM<1 kD. Their distribution proportions were 10.8%, 46.8%, 13.3% and 29.1%, respectively. In the reactivity between the organic substances and chlorine dioxide, it was discovered that the reaction breaks down the organic substance large molecules into smaller molecules and cannot directly mineralize the large organic molecules into inorganic carbon. In comparison, the small organic substance molecules (5–1 kD, AMM<1 kD) contributed most disinfection by-products per unit organic carbon (THMs/DOC, THAAs/DOC).
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Research Article|
February 01 2001
The effect of the molecular mass of the organic matter in raw water on the formation of disinfection by-products
Chen-Yu Chang;
1Environmental Protection Center, Chung-Tai Institute of Health Sciences and Technology, 11 Pu-Tze Lane, Pei-Tun District, Taichung, Chinese Taiwan
Tel: +886 4 239 1647; Fax: +886 4 239 3305; E-mail: cychang@enve.ev.nchu.edu.tw
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Yung-Hsu Hsieh;
Yung-Hsu Hsieh
2Department of Environmental Engineering, National Chung-Hsing University, 250 Kuo-Kuang Road, Taichung, Chinese Taiwan
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Yu-Min Lin;
Yu-Min Lin
2Department of Environmental Engineering, National Chung-Hsing University, 250 Kuo-Kuang Road, Taichung, Chinese Taiwan
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Po-Yu Hu;
Po-Yu Hu
2Department of Environmental Engineering, National Chung-Hsing University, 250 Kuo-Kuang Road, Taichung, Chinese Taiwan
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Chin-Chuan Liu;
Chin-Chuan Liu
2Department of Environmental Engineering, National Chung-Hsing University, 250 Kuo-Kuang Road, Taichung, Chinese Taiwan
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Kuo-Hua Wang
Kuo-Hua Wang
3Department of Environmental Engineering and Health, Yuanpei Technical College, 306 Yuanpei Street, Hsinchu, Chinese Taiwan
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Journal of Water Supply: Research and Technology-Aqua (2001) 50 (1): 39–45.
Citation
Chen-Yu Chang, Yung-Hsu Hsieh, Yu-Min Lin, Po-Yu Hu, Chin-Chuan Liu, Kuo-Hua Wang; The effect of the molecular mass of the organic matter in raw water on the formation of disinfection by-products. Journal of Water Supply: Research and Technology-Aqua 1 February 2001; 50 (1): 39–45. doi: https://doi.org/10.2166/aqua.2001.0004
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