查詢結果分析
相關文獻
- 自來水配水系統消毒副產物生成模式之研究
- 以薄膜法分離水中不同分子量成分降低生成消毒副產物之探討
- 丙酮被次氯酸鈉氧化生成消毒副產物之反應動力模式探討
- 以臭氧氧化及薄膜法降低生成消毒副產物之探討
- 出席IWSA主辦「飲用水配水系統有或無消毒劑殘留量研討會」報告
- 自來水配水系統水質二次污染的研究(1)--餘氯
- 自來水配水系統水質二次污染的研究(2)--微生物的再生長現象
- 大甲溪流域溶解性有機物分布及生成消毒副產物特性之探討
- 自來水配水系統水質二次污染研發課題探討
- The Effects of Physicochemical Factors on Chlorine Decay in a Distribution Network
頁籤選單縮合
題 名 | 自來水配水系統消毒副產物生成模式之研究=Assessing and Modeling Disinfection By-Products Formation in Water Distribution System |
---|---|
作 者 | 郭修志; 蔣本基; 李易書; | 書刊名 | 國立臺灣大學工程學刊 |
卷 期 | 96 2007.05[民96.05] |
頁 次 | 頁3-13 |
專 輯 | 環境工程專輯 |
分類號 | 445.2562 |
關鍵詞 | 供水安全; 配水系統; 澄清湖淨水場; 加氯程序; 餘氯消減量; 消毒副產物; Water supply system security; Water distribution system; Cheng-chin lake water treatment plant; Chlorination; Chlorine decay; Disinfection by-products; DBPs; |
語 文 | 中文(Chinese) |
中文摘要 | 自來水消毒的目的為確保飲用水之安全,但加氯消毒產生的消毒副產物經配水系統送至用戶端,將造成人體致癌性風險。且配水系統中消 毒副產物的生成易受物理、化學及生物因子的影響。因此,配水系統供水安全已逐漸受到國內外學者的重視與研究。本研究將經由採樣分析及 現場模場實驗研究消毒副產物生成之情形。以澄清湖淨水場及其配水系統為研究對象,進行批次槽及配水管線中消毒副產物之生成動力實驗, 了解水質參數及操作因子對消毒副產物生成的影響。並結合水力分析軟體SUFER分析管網中之水力流況與管網水質現況,加以驗證及建立配水 系統中消毒副產物生成模式。藉此提供飲用水安全防護體系之評估準則,並提昇飲用水供水系統之水質安全與達到淨水場操作最佳化之目標。 澄清湖高級淨水場,主要利用前、後臭氧處理自來水中難分解之有機物質,並於清水池加氯消毒,確保飲用水的安全。由加氯實驗中發現 餘氯消減反應包括:初始餘氯反應、二階反應及一階反應。其消毒副產物之生成濃度受加氯量、有機物濃度、pH值與溫度的影響而改變。此外 ,經由採樣分析搭配SUFER軟體繪製之配水系統水質綜合比較圖與淨水場模場實驗中皆發現,隨接觸時間的增加,三鹵甲烷在管線中的生成濃 度明顯增加,但鹵乙酸類則無明顯變化,顯示鹵乙酸類較易為生物所分解。由實驗數據建立之三鹵甲烷生成模式可準確地預測清水池及配水管 網中消毒副產物之生成濃度。比較高級與傳統處理程序顯示,經高級處理之水質與加氯消毒副產物生成濃度都較傳統處理為佳,顯示澄清湖淨 水場之供水系統更能確保飲用水的安全。 |
英文摘要 | The purpose of the disinfection process in the water treatment plant (WTP) is to ensure the water supply system security. However, the disinfection by-products (DBPs) formed in disinfection process through the water supply system to customers might cause the carcinogenic risk to human beings. Moreover, the physical, chemical and biological factors would influence the DBPs formation significantly in the distribution system. Therefore, more and more researches have emphasis on the water supply system security. This study utilizes the sampling analysis and the in-situ pilot-scale experiments to research the DBPs formation in the water distribution system. The Cheng-Chin Lake WTP and its water distribution system is the selected subject to perform the DBPs kinetics formation reaction in the batch reactor and the pilot-scale instrument and understand the effect of the water quality parameters and the operation factors on DBP formation. The hydraulic analysis software "Surfer" is used to analyze the hydraulic flows and water quality in the water distribution network, which would establish and validate the DBPs formation predictive model in the water distribution system. The assessment parameters of drinking water security system are used to promote the water supply security system and optimization operation in the waterworks. The Cheng-Chin lake WTP consists of ozonation process to remove the organic matters and chlorination process to perform the disinfection, which ensures the drinking water safety. The results of chlorination process reveal that the chlorine decay is including the initial, second-order and first-order reactions. The chlorine dose, dissolved organic carbon (DOC), pH and temperature influence the DBPs formation significantly. Moreover, the result of the comprehensive comparison of water quality in water distribution system drawn by the combining sampling analysis and SUFER, and the pilot-scale experiment reveals that the trihalomethane (THM) formation concentration increases with increasing reaction time, but the haloacetic aicd (HAA) formation changes insignificantly, which results from that the HAA5 is more biodegradable than THMs. The proposed predictive model could predict the THMs formation accurately in water distribution system. The water quality and DBPs formation concentration of the treated water are more excellent in the advanced WTP than in traditional WTP. Therefore, the water supply system in the advanced water treatment more confirms drinking water safety. |
本系統中英文摘要資訊取自各篇刊載內容。