| 第 42 卷第 5 期 |  | Vol. 42 No. 5 | | 2012 年 10 月 | Oct 2012 |
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所屬欄目：安全與環(huán)保
電催化氧化預處理2-氯-5-氯甲基噻唑廢水 |
| 馬 林1，2 ，張 燕1，2，陳 燦1，2，秦岳軍1，2
（1.湖南化工研究院 國家農藥創(chuàng )制工程技術(shù)研究中心，2.農用化學(xué)品湖南省重點(diǎn)實(shí)驗室，湖南 長(cháng)沙 410014） |
| 摘 要：以電催化氧化為主要技術(shù)，采用電催化氧化-吸附工藝預處理2-氯-5-氯甲基噻唑廢水，考察了廢水初始pH值、電流、時(shí)間等對電催化氧化COD去除率及處理后廢水pH值的影響，同時(shí)選取了活性炭和膨潤土作為吸附劑處理電催化氧化后的電解液，考察了兩吸附劑對COD去除率及處理后廢水pH值的影響。結果表明，電催化氧化的適宜條件為初始pH值=7，電流為15A，電解時(shí)間為4 h，在此條件下，電催化氧化對COD的去除率為87.3%；膨潤土吸附效果優(yōu)于活性炭，膨潤土的適宜吸附時(shí)間為40 min，吸附后對電解液COD的去除率為28.9%，且吸附后廢水呈中性。 |
| 關(guān)鍵詞：電催化氧化；2-氯-5-氯甲基噻唑廢水；膨潤土吸附 |
| 中圖分類(lèi)號：X703 文獻標識碼：A 文章編號：1009-9212（2012）05-0059-04 |
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| Pretreatment of 2-Chloro-5-chloro Methylthiazole Waste Water by Electro-Catalytic Oxidation Technology |
| MA Lin1，2，ZHANG Yan1，2，CHEN Can1，2，QIN Yue-jun1，2
（1. National Engineering Research Center for Agrochemicals，Hunan Research Institute of Chemical Industry，Changsha 410014，China；2.Hunan Province Key Laboratory for Agrochemicals，Changsha 410014，China） |
| Abstract：Based on electro-catalytic oxidation，the combined process of electro-catalytic oxidation and adsorption was used to pretreated 2-chloro-5-chloro methylthiazole wastewater. Effects of initial pH value，current and reaction time on COD removal rate and pH value were investigated in electro-catalytic oxidation. Results showed that the initial pH value of 7，current of 15 A，reaction time of 4 h were the proper electro-catalytic oxidation condition. Under this condition，COD removal rate was 87.3%. Bentonite and activated charcoal were chosen as adsorbents to treat electrolyte. By comparison，bentonite had better adsorption effect than activated charcoal in the same condition. Its proper adsorption time was 40 min，and COD removal rate was 28.9%. In addition，the pH value of waste water was neutral after bentonite adsorption. |
| Key words：electro-catalytic oxidation；2-chloro-5-chloro methylthiazole wastewater；bentonite adsroption |
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收稿日期：2012-10-12
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