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Quality Improvement of Recreational Waters with Sodium Hypochlorite and Chlorine Dioxide
|上傳時間: ||2011-12-22 09:47:03 (UTC+8)|
Chlorination is the most typical and popular practice used for water disinfection in decades. Many sorts of carcinogenic disinfection by-products (DBPs) have been demonstrated to be produced and accumulated quantitatively after chlorination. However, trihalomethanes (THMs) and haloacetic acids (HAAs) are thought to be the most important components among these DBPs. The aim of this study is to evaluate the feasibility of using ozone as an alternative disinfectant. Analysis of all DBPs formed by chlorine dioxide ozonation was undertaken to approve its advantages on the removal of impurities and control of disinfection by-products. In recent years it is occasionally heard that the index of microorganism in water in some related places examined by government is not always to be qualified. In the daily life of modern people, Swimming and SPA pool are welcome for a long time because of its leisure and healthcare benefits. However, it is also the most important one of many leisure activities of the public. Thus, spa water at vacation resorts are often used by numerous visitors. In this study we will utilize new-type chlorine dioxide and old-type chlorine to study the microorganism disinfection effect upon a Chinese herbal medicine-contained SPA pool. In the first year of the study, due to the complexity of the compounds in the pool and for effectively handling disinfection effect, we will simulate to make a solution mixing with Chinese herbal medicine-contained water and chlorine dioxide and sodium hypochlorite in our laboratory. Then, to study the degradation operation, the residual chlorine dioxide concentration, and the safety usage dose for disinfection in the simulated solution. In the second year, utilizing the results obtained from the first year study, that include the reaction procedure and the optimal operation conditions of the simulated pool, we will use them to apply to the same disinfection evaluation of a real pool. Further, make some adjustments of possible influencing parameters. After completing these researches, we can expect to obtain the disinfection technology and can service the related businesses for increasing their ability of water environment control with that.
|Appears in Collections:||[環境資源管理系(所)] 科技部計畫|
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