| 第 47 卷第 2 期 |  | Vol. 47 No. 2 | | 2017 年 4 月 | Apr 2017 |
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所屬欄目：安全與環(huán)保
固定床顆粒填料的制備及其處理三乙胺廢水的研究 |
| 張 燕1，2，秦振林3，馬 林1，2，鐘若楠1，2，邱德躍1，2，陳 燦1，2，秦岳軍1，2
（1. 湖南化工研究院有限公司 國家農藥創(chuàng )制工程技術(shù)研究中心，湖南 長(cháng)沙 410014；2. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室，湖南 長(cháng)沙 410014；3. 湖南海利工程咨詢(xún)設計有限公司，湖南 長(cháng)沙 410007） |
| 摘 要：以粉煤灰、膨潤土、高嶺土為原料，經(jīng)研磨、混合、造粒、焙燒等工藝，研制了一種顆粒吸附劑填料，并應用于農藥行業(yè)三乙胺類(lèi)廢水的脫色。討論了原料配比、焙燒溫度、焙燒時(shí)間，對吸附劑顆�？障堵�、機械強度、吸附性等物理化學(xué)性能的影響。將吸附顆粒填充至實(shí)驗室模擬固定吸附床裝置中，應用于三乙胺廢水的吸附處理，并與粉末狀填料進(jìn)行吸附對比。結果表明，高嶺土的含量需大于15%，膨潤土含量的范圍為25%～50%，粉煤灰含量的范圍為29%～60%，焙燒溫度需600℃以上，且時(shí)間不低于1 h，可滿(mǎn)足機械強度大于30 N。以高嶺土、膨潤土、粉煤灰配比為15.0 ∶ 42.5 ∶ 42.5，焙燒溫度和時(shí)間分別為600℃和1 h，所制得顆粒填料進(jìn)行吸附實(shí)驗，結果表明，顆粒填料對三乙胺廢水的脫色效果可將其色度從500將至50以下，COD去除率達30%以上，可與粉狀填料相比媲。 |
| 關(guān)鍵詞：粉煤灰；膨潤土；吸附劑；顆粒填料；三乙胺廢水 |
| 中圖分類(lèi)號：X703 文獻標識碼：A 文章編號：1009-9212（2017）02-0064-04 |
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| Preparation for Particle Packing of Fixed Bed and Research on the Treatment of Wastewater Containing Triethylamine |
| ZHANG Yan1,2, QIN Zhen-lin3, MA Lin1,2, ZHONG Ruo-nan1,2, QIU De-yue1,2, CHEN Can1,2, QIN Yue-jun1,2
(1. Hunan Research Institute of Chemical Industry, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China; 3. Hunan Haili Engineering Consultation Co., Ltd, Changsha 410007, China) |
| Abstract：A novel granular adsorbent was prepared and applied in the decoloration of the wastewater containing triethylamine in the pesticide industry. It was made through a process including grinding, mixing, granulating and roasting using a certain mixture of fly ash, bentonite and kaolin as the starting material. In this study the ratio of raw materials, calcination temperature and duration of calcination on porosity, mechanical strength and adsorption properties of adsorbent was evaluated. The adsorbent particles were filled into a simulated fixed bed in laboratory and applied in the adsorption of triethylamine in wastewater. A comparison on the performance with the powdery filler was also conducted. The results showed that: As a loading of kaolin was more than 15%; the contents of bentonite and fly ash were in the range of 25%~50% and 29%~60% respectively; the mechanical strength was greater than 30N at the temperature of 600℃ for at least 1h. In this study, a kind of granular filler was prepared by mixing kaolin, bentonite, and fly ash at a ratio of 15 ∶ 42.5 ∶ 42.5(wt.%) followed by calcination at 600℃ for 1h. This granular filler was applied in decolorization of wastewater containing triethylamine, and the chrominance was reduced to 50 from 500, and the COD removal rate was more than 30%, which was no significant difference from that of the powdery filler. |
| Key words：fly-ash; bentonite; adsorbent; particle packing; wastewater of triethylamine |
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作者簡(jiǎn)介：張 燕（1984-），女，湖北荊門(mén)人，助理研究員，碩士，研究方向：污水處理與水污染控制工程（E-mail：hmily_522@163.com）。
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收稿日期：2017-03-30
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