電觸媒系統中的觸媒材料因可與水反應產生氫氧自由基，其可將有機污染物快速氧化，亦有良好之還原能力，將重金屬電鍍至陰極。本研究以電觸媒技術（Electrocatalysis）處理硬幣廠及印刷廠之實場水樣，且硬幣廠分為實驗室與實場規模與印刷廠為實驗室規模下，進行研究及討論。
運用電觸媒技術處理硬幣廠水樣試驗中，在實驗室與實場規模下，以二氧化銥陽極板及不銹鋼陰極板作為處理水樣之材料，藉由分析處理前後水樣之化學需氧量(COD)、pH值、導電度值(Conductivity)與重金屬(銅、鎳)的變化，瞭解觸媒電極在實驗室與實場規模處理效果之影響。實驗室規模結果中，操作電壓梯度 7.0 V cm-1、處理120 min後，水樣之化學需氧量處理效率約可高達58~75 %。而水樣重金屬濃度亦有約高達99%的去除效率，並同時可將水樣之導電度去除，其去除效率約34~59%。實場規模結果中，由於水樣含有高濃度之COD，單以電觸媒技術處理下，其效果較不顯著。因此需以電觸媒技術結合混凝程序處理，其處理後，水樣之化學需氧量處理效率可達到約67.38%~86.77%。
印刷廠水樣試驗結果中的最佳處理情況：操作電流密度50 mA cm-2、水樣導電度在5 mS cm-1、兩組電極，處理60 min後，水樣之TOC及色度處理效率約可高達75%與82%；當再結合活性碳吸附時，可再提高TOC與色度之處理效率，其去除效率皆約90%。

The electrocatalysis can be produced the hydroxyl radicals by water molecule interacting with the catalytic materials in the aquatic system. It’s not only able to oxidize the organic pollutants effectively, but also can reduce the heavy metal to coat on the cathode. The study is to treat the mint and printing real wastewater by electrocatalysis. The mint real wastewater experiment divides into two parts that are laboratory and in-situ experiment respectively.
Both the laboratory and in-situ experiment of mint wastewater used the Iridium dioxide anode plate and stainless steel cathode. It analyzed the chemical oxygen demand (COD), pH, conductivity and heavy metals (Cu and Ni) to understand the removal efficiency. In the laboratory experiment, the removal efficiency of COD was 58~75% by the 7.0 V cm-1 voltage gradient after 120 minutes treatment. And the removal efficiency of heavy metals was up to 99%, at the same time, the removal efficiency of conductivity was about 34 to 59%. In the in-situ experiment, the sample contains high concentration of COD that can not remediation effectively only by electrocatalysis. Therefore, electrocatalysis combines with coagulation process that increases the COD removal efficiency up to 67.38~86.77%.
The results show the TOC and color removal efficiency were 75% and 82% respectively in best operating parameters of electrocatalysis that are 50 mA cm-2 crrent density, couple of electrodes and 60 minutes treatment. It can increases the TOC and color removal efficiency up to about 90% which combined the activated carbon adsorption process.

中文摘要 I
Abstract II
誌謝 IV
目錄 V
表目錄 VIII
圖目錄 IX
第一章 緒論 1
1-1 研究緣起 1
1-2 研究目的 4
第二章 文獻回顧 5
2-1 電化學技術簡介 5
2-2 電觸媒技術簡介 6
2-2-1 半導體材料(或稱觸媒材料)特性簡介 7
2-2-2 氧化反應簡介 17
2-3 電化學還原技術(或稱電鍍技術) 23
2-4 陰、陽離子交換膜的特性簡介 27
2-5 鑄幣廠與印刷廠簡介 29
2-5-1 鑄幣廠製程與廢水特性說明 29
2-5-2 印刷廠製程與廢水特性說明 31
第三章 試驗材料與方法 33
3-1 研究架構 34
3-2 硬幣廠廢水處理效率試驗 38
3-2-1 實驗室規模試驗模具介紹與分析方法 38
3-2-2 硬幣廠現場規模試驗 42
3-2-3 硬幣廠廢水試驗藥品 46
3-3 印刷廠廢水處理效率試驗 47
第四章 結果與討論 50
4-1 硬幣廠廢水於實驗室規模試驗 50
4-1-1 廢水樣品水質特性 52
4-1-2 pH值變化趨勢 54
4-1-3 導電度值變化趨勢 56
4-1-4 重金屬Cu、Ni及COD去除效率 58
4-2 硬幣廠廢水於實場規模試驗 60
4-2-1 水樣之水質特性 62
4-2-2 水樣B1、B2之pH值變化趨勢 64
4-2-3 水樣B1、B2之導電度值變化趨勢 66
4-2-4 水樣B1、B2之COD變化趨勢 68
4-3 電觸媒系統結合混凝程序 70
4-3-1 水樣B3至B9之pH變化趨勢 70
4-3-2 水樣B3至B9之導電度值變化趨勢 72
4-3-3 水樣B3至B9之COD變化趨勢 74
4-4 印刷廠水樣試驗 77
4-4-1 印刷廠水樣水質特性 79
4-4-2 找尋最佳操作導電度水樣之pH值變化趨勢 80
4-4-3 找尋最佳操作導電度水樣之導電度變化趨勢 82
4-4-4 找尋最佳操作導電度水樣之TOC去除率 84
4-4-5 找尋最佳操作導電度水樣之色度去除率 86
4-5 不同電流密度試驗 88
4-5-1 不同電流密度之pH值變化趨勢 88
4-5-2 不同電流密度之導電度變化趨勢 90
4-5-3 不同電流密度之TOC去除率 92
4-5-4 不同電流密度之色度去除率 94
4-6 電觸媒系統結合活性碳與增加電極板試驗 96
4-6-1 水樣之pH值與導電度值變化趨勢 96
4-6-2 水樣之TOC與色度去除率 98
第五章 結論與建議 100
5-1 結論 100
5-2 建議 102
第六章 參考文獻 103

表目錄
表1-1 氫氧自由基生成與有機污染物降解方程式 .......................................... 3
表2-1 各類半導體的能隙表............................................................................. 10
表2-2 半導體的種類 ......................................................................................... 11
表2-3 TiO2各類結晶之物理特性比較表 ....................................................... 15
表2-4 IrO2各類結晶之物理特性比較表 ....................................................... 16
表2-5 電觸媒(氫氧自由基)反應方程式 .......................................................... 18
表2-6 電觸媒技術之相關研究......................................................................... 19
表2-7 各種氧化劑之標準還原電位 ................................................................ 22
表2-8 電化學還原技術之相關研究 ................................................................ 25
表2-9 為陰、陽離子交換膜物化特性 ............................................................ 28
表3-1 研究儀器設備製造商及型號 ................................................................ 37
表3-2 硬幣廠廢水降解試驗設備製造商及型號 ............................................ 40
表3-3 硬幣廠廢水降解試驗操作條件 ............................................................ 41
表3-4 硬幣廠放大規模廢水降解試驗設備製造商及型號 ............................ 44
表3-5 硬幣廠廢水降解試驗操作條件 ............................................................ 45
表3-6 硬幣廠廢水降解試驗藥品項目 ............................................................ 46
表3-7 印刷廠廢水降解試驗設備製造商及型號 ............................................ 48
表3-8 印刷廠廢水降解試驗操作條件 ............................................................ 49
表4-1 各水樣水質特性 ..................................................................................... 53
表4-2 為重金屬Cu、Ni及COD去除效率 ................................................... 59
表4-3 各水樣水質特性 ..................................................................................... 63
表4-4 印刷廠水樣基本特性............................................................................. 79




圖目錄
圖2-1 為不同導體種類之能帶示意圖 .............................................................. 8
圖2-2 電子從價電帶躍遷至傳導帶之示意圖 .................................................. 8
圖2-3 不同半導體觸媒材料之能隙圖 .............................................................. 9
圖2-4 銳鈦礦與金紅石之晶格結構 ................................................................ 13
圖2-5 二氧化鈦各種晶格分子結構圖 ............................................................ 13
圖2-6 二氧化銥金紅石(Rutile)結構示意圖:(a)平面圖；(b)立體圖.............. 14
圖2-7 二氧化銥離子配位鍵結圖 .................................................................... 14
圖2-8 直接與間接電化學氧化法機制 ............................................................ 17
圖2-9 電解反應圖 ............................................................................................. 24
圖2-10 硬幣製造之流程 ................................................................................... 30
圖2-11 網版印刷過程 ....................................................................................... 32
圖2-12 刮印刷油墨厚度示意圖....................................................................... 32
圖3-1 研究架構 ................................................................................................. 35
圖3-2 實驗室規模之電觸媒系統設備圖 ........................................................ 39
圖3-3 現場放大規模之電觸媒系統設備圖 .................................................... 43
圖3-4 電觸媒系統實驗設備圖......................................................................... 48
圖4-1 實驗室規模架構 ..................................................................................... 50
圖4-2 各水樣之pH值變化 .............................................................................. 55
圖4-3 各水樣之導電度值變化......................................................................... 57
圖4-4 實場規模架構 ......................................................................................... 60
圖4-5 水樣B1、B2之pH值變化 .................................................................. 65
圖4-6 水樣B1、B2之導電度值變化 ............................................................. 67
圖4-7 水樣B1、B2之COD變化 ................................................................... 69
圖4-8 水樣B3至B9之pH變化 .................................................................... 71
圖4-9 水樣B3至B9之導電度變化 ............................................................... 73
圖4-10 水樣B3至B9之COD變化 ............................................................... 76
圖4-11 印刷廠實驗架構 ................................................................................... 77
圖4-12 不同水樣導電度之pH值變化 ............................................................ 81
圖4-13 不同水樣導電度之導電度值變化 ...................................................... 83
圖4-14 不同水樣導電度水樣之TOC去除率 ................................................ 85
圖4-15 不同水樣導電度水樣之色度去除率 .................................................. 87
圖4-16 不同電流密度之pH值變化 ................................................................ 89
圖4-17 不同電流密度之導電度值變化 .......................................................... 91
圖4-18 不同電流密度之TOC去除率............................................................. 93
圖4-19 不同電流密度之色度去除率 .............................................................. 95
圖4-20 一組電極之pH值及導電度值變化 ................................................... 97
圖4-21 兩組電極之pH值及導電度值變化 ................................................... 97
圖4-22 一組電極之TOC及色度去除率 ........................................................ 99
圖4-23 兩組電極之TOC及色度去除率 ........................................................ 99

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