製作可回收磁性及活性碳金屬催化劑增進臭氧降解飲用水消毒副產物之探討本研究將分三年製作臭氧金屬催化劑，將金屬催化劑包覆於磁性載體或活性碳，以達成可催化臭氧反應又可回收的目的，將分別選用Ag、Pd-MnOx再分別以含浸法製作成Ag/SiO2/Fe3O4、Pd-MnOx/SiO2/Fe3O4及Ag/AC，並利用統計分析方式(DOE)來執行實驗設計和結果分析，找出燒結程序中最適條件，設計的參數有鍛燒溫度、混合配比及化學成份，利用反應曲面法(Response surface methodology ; RSM)分析實驗結果求出最佳的操作條件，探討臭氧與不同的金屬催化劑反應與•OH含量之關係，以暸解催化臭氧反應之機制。本研究將應用p-CBA捕捉•OH再以HPLC搭配UV/VIS來測定•OH的產率，透過催化臭氧反應提升氫氧自由基之間接反應以去除消毒副產物之特性，來作為提升供水品質，減少副產物之技術。最後，再建立模擬反應之模式。本研究將分三年，逐一探討(1)製作超順磁氧化銀殼核催化劑，並探討【Ag/SiO2/Fe3O4】之臭氧催化反應，(2)製作超順磁錳-鈀殼核催化劑，並探討【Pd-MnOx/SiO2/Fe3O4】臭氧催化反應，(3)製作Ag/AC催化劑，並探討【Ag/AC】臭氧催化反應，另外，與第一年及第二年製造之【Ag/SiO2/Fe3O4】和【Pd-MnOx/SiO2/Fe3O4】臭氧催化之反應特性比較，將彙整反應去除消毒副產物之特性作為提升供水品質，減少副產物之技術。 The assembly of reusable magnetic metal and activated carbon ozone catalyst to reduce disinfection by-products. This study adapts the recyclable metal catalyst attached on iron and carbon with ozone to decompose the disinfection by-products (DBPs). The ions used to assembly the catalysts are Ag and Pd-MnOx to form the products of Ag/SiO2/Fe3O4, Pd-MnOx/SiO2/Fe3O4 and Ag/Activated carbon(AC). This study will apply design of experiment (DOE) method to obtain the optimal operation factors; i.e. the bake temperature and ratio of mixture, by plotting the response surface methodology (RSM). The free radical (?OH) also be analyzed to investigate the strength of various ozone catalytic oxidation reactions. The whole study will be a 3 years research with the step of (1). Assemble the Ag/SiO2/Fe3O4, (2). Assemble the Pd-MnOx/SiO2/Fe3O4 and (3). Assemble the Ag/ AC catalysts. The two steps of direct and indirect reactions of ozonation will be compared. The overall reduction of DBPs by ozone with various catalyst systems will be evaluated.
