| Abstract |
| This study describes, quality of influent raw water to the purification plant and the characteristics of the disinfection by-products produced during the pre-chlorination process. The SUVA254 is the ration of UV254 and DOC concentration to determine the ability of producing disinfection by-products and the average value was found to be 1.93. Therefore, it is considered that the organic matter in the source water isn’t composed of polymeric humic component but hydrophilic and low molecular organic material. The ratio of DOC/TOC was calculated to examine the ratio of dissolved organic matter in total organics. As a result, the average value was found to be 0.70, and most of the organic matter in the raw water was in dissolved form. The BOD/COD ratio, which indicates the biodegradability of organic matter, averaged 0.72. Indicating that biodegradation is easy since the ratio is greater than 0.5. The average amount of generated THM was found to be 0.02 mg/L, which was above the legal water quality index of 0.01 mg/L. In order to reduce the amount of these THMs generated during the pre-chlorination process, split chlorine injection is currently being carried out. But it seems to put a burden on the activated carbon process. Correlation analysis was performed to derive the water quality factors which have a significant relationship with THMs production. As a result, COD (0.996), DCOD (0.970), TOC (0.931) and BOD (0.906) were highly correlated. Also, UV254 (0.875) and pH (0.777) were relatively higher than others. |
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| Key Words |
| Correlation Analysis, Non-Biodegradable Organic, Pre-Chlorination, THMs, Water Treatment Process |
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