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題 名 | 雙槽式反應器電解稀薄食鹽水氧化亞甲基藍染料廢水之研究=On the Study of Methylene Blue Wastewater Oxidation in Dilute KCl Solution Using Divided Cell Electrolysis Reactor |
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作 者 | 孫志誠; 王瑞彥; 林昀丘; 翁崇銘; | 書刊名 | 永達學報 |
卷 期 | 6:2 民95.02 |
頁 次 | 頁26-33 |
分類號 | 445.2593 |
關鍵詞 | 雙槽式反應器; 電解; 次氯酸; 亞甲基藍; 次氯酸根; Divided cell; Electrolysis; Hypochlorous acid; Methylene blue; Hypochlorate; |
語 文 | 中文(Chinese) |
中文摘要 | 雙槽式電解反應器因隔板隔開陰陽極,使得電解後有別於單槽式反應器,陽極槽呈偏酸之溶液情況,而陰極槽則形成偏鹼之溶液情況。目前電解食鹽水產生次氯酸進行氧化反應已是成熟之技術,然因次氯酸於水中之水解平衡關係,於單槽式電解反應器所生成次氯酸含量並不高,而大多以次氯酸根之形式存在。而次氯酸之氧化力較之次氯酸根高出甚多。本研究即以雙槽式電解反應器,進行稀薄食鹽水之電解,於陽極產生次氯酸進行亞甲基藍氧化效率探討。實驗結果顯示,陰陽槽中各置入5ppm之亞甲基藍溶液1升,在0.50A之定電流下電解10分鐘,總體去除率達82.00%,較之單槽反應器之25.52%提昇約3.20倍。當電解電流由0.10增至1.00A時,電解5分鐘,總體去除率由15.00增至72.50%,但單位庫侖之去除率則由0.05降至0.02mg/coul。故而,同時考慮能源與效率因素時,0.50A之定電流下電解應是較合適的。 |
英文摘要 | The different between the divided and undivided electrolysis reactor is in the porosity plate that separates the reactor into cathodic and anodic cells. During the electrolysis, the solution in the anodic cell becomes acidic. On the opposite, it becomes basic in the cathodic cell. It has been well known that the hypochlorous acid is formed during the electrolysis of NaCl solution and is used to carry out the oxidation reaction. In the case of the undivided cell, the amount of hypochlorous acid is relatively less due to the pH-dependent hydrolysis equilibrium of hypochlorous acid. In this study, a divided cell is used in the electrolysis of KCl solution to produce more hypochlorous acid at the anode, which is subsequently studied its oxidation removal of methylene blue (MB). The experimental results show that the total percent removal of MB is 82.00% in 10 minutes with an electrolytic current of 0.50A. under the same conditions, only 25.25% of MB is removed in the undivided cell. The total percent removal is increased from 15.00 to 72.50% in 5 minutes if the electrolytic current is changed from 0.10 to 1.00A. However, the percent removal is decreased from 0.05 to 0.02 mg/coul. In consideration of factors such as energy consumption and percent removal, an electrolytic current of 0.50A is used in all cases. |
本系統中英文摘要資訊取自各篇刊載內容。