Applied Linear Regression Model for Predicting TTHMs Formation in Taiwan


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by Yir-Yarn Yeh, Ph.D. Candidate; Institute of Civil and Hydraulic Engineering, Feng-Chia University, P.O. Box 25-123, Taichung 407, Taiwan,
Han-Keng Lee, Associate Professor of Department of Hydraulic Engineering; Feng-Chia University, P.O. Box 25-123, Taichung 407, Taiwan,
Chia-Wei Ou, Master Student; Department of Hydraulic Engineering, Feng-Chia University, P.O. Box 25-123, Taichung 407, Taiwan,
Wei-Ming Chen, Master Student; Department of Hydraulic Engineering, Feng-Chia University, P.O. Box 25-123, Taichung 407, Taiwan,



Document Type: Proceeding Paper

Part of: World Water & Environmental Resources Congress 2003:

Abstract: Chlorination has been the major strategy for disinfection of drinking water in Taiwan. The objective of this study is to classify and evaluate the factors of temporal-spatical explicitly for the influence of total trihalomethanes (TTHMs) concentration. The temperature for finished water increasing from northern to southern ranged from 20.4–27.1 °C. pH ranged from 6.7–8.3. TCM is the main content of THMs, the range was from 1.3–18.5 μ g/L, and the DCBM range was from 0.2–6.2 μ g/L. That conformed to the tendency of temperature of spatical factor in Taiwan. DBCM and TCM were predominant in Peng-Hu (11.2 and 24.8 μ g/L, respectively) because the water source was groundwater which near the coast and had higher bromide concentration.

Subject Headings: Regression analysis | Temperature effects | Groundwater | Trihalomethanes | Water treatment | Water temperature | Chlorine | Light rail transit | Drinking water | Taiwan | Asia

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