Improvement of Ozonation Systems for the Water and Waste Water Treatments (Ⅱ)

本計畫之目的在於利用整合型計畫將 各子計畫之研究加以整合，期望藉由子計 畫之間相互的交流與討論，來達到資源與 實驗研究能夠做最有效的配合與發展。 本研究群研究項目如下。（1）利用臭 氧化去除電鍍液中的有機添加劑(如聚乙 二醇)，以探討電鍍廢液資源化之可行性。 （2）針對預臭氧程序輔助廢水處理方面， 研究phenol, nitrobenzene, aniline 及benzoic acid 經過臭氧化後的化學特質變化及生物 毒性問題。（3）研究建立一個同相催化性 金屬離子對臭氧化系統效能增進模式，期 能藉溶液中金屬離子催化劑促進水溶液中 有機物之礦化。（4）探討臭氧化系統之界 面現象及其對質量傳送的影響。One objective of this study is to remove polyethylene glycol (PEG) from the acidbased electroplating solution of printed wiring board (PWB) industry by ozone (O3) or ozone/ultraviolet (UV) processes. The substrates (the major chemical species) of the electroplating solution recipe are inorganics, such as sulfuric acid, copper sulfate, etc. Ozonation mainly destroys the minor organic additives (PEG, for example).In addition, the biotoxicity, biodegradability and color formation of the target substances (phenol, nitrobenzene, aniline and benzoic acid) during the ozonation in different pH conditions are investigated. The charcoal wastewater is tested for the improvement of biological wastewater treatment with pre-ozonation. The third aim of the study is to establish a homogeneous metal ion catalyzing ozonation system. The efficiency of ozonation increases and enhances the mineralization of organics. The forth objective is to study the ozone mass transfer with the consideration of interfacial phenomena