Journal
URBAN WATER JOURNAL
Volume 12, Issue 4, Pages 275-282Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/1573062X.2013.871042
Keywords
water distribution systems; trihalomethanes; seasonal variation; water distribution modeling; linear and non-linear modeling; multiple regression analysis
Categories
Funding
- Center of Excellence on Environmental Health and Toxicology (EHT), Bangkok Thailand
Ask authors/readers for more resources
This study initially investigated the occurrence of trihalomethanes (THMs) in the water supply system of Metropolitan Bangkok, Thailand, evaluating 624 samples collected between 2007 and 2009. It was found that the mean total THM concentration was 66 mu g/L, with CHCl3 accounting for 85% of the total. The main focus, however, was the development of models using linear and non-linear regression analyses to determine the effect of key disinfection parameters on THM formation. Regression techniques revealed that the total and residual Cl-2 concentrations, and contact time (expressed as the equivalent pipe distance) played the most critical role in THM formation, regardless of the season investigated. A moderate correlation was generally observed, however, the correlation was considerably stronger in the dry seasons (i.e. winter and summer) compared to the rainy season. Furthermore, the similarity in statistical parameters regarding the actual and predicted THM concentrations suggests that the models developed are reliable.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available