| Experimental Study of Wastewater Treatment of Reactive Dye by Phys-Chemistry Method |
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| 作者姓名： | YANG Yan-wu ZHOU Tong-ling QIAO Qi-cheng CHEN Shuo |
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| 作者单位： | [1]School of Environment ＆ Spatial lnformatics, China University of Mining ＆ Technology, Xuzhou, Jiangsu 221008, China [2]Lab and Equipment Administration Office, China University of Mining ＆ Technology, Xuzhou, Jiangsu 221008, China [3]School of Foreign Studies, China University of Mining ＆ Technology, Xuzhou, Jiangsu 221008, China |
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| 摘 要： | Wastewater, which involves easy-soluble reactive dyes, especially non-degradable dyes, is very difficult to decolor efficiently by normal processes such as coagulation process and biological treatment. The high chromaticity seriously hinders the reuse of reactive dye waste water. In this paper, a new method by bentonite adsorption and coagulation （PAC） is employed for removing color from synthetic dye waste water which contains reactive red K-2G, K-RN blue, K-GR blue, X-3B red, K-GN orange, KB-3G yellow, K-2BP red, K-RN yellow and K-6G yellow. Bentonite pretreated by 4% CTMAB and milled to 160 order screen is proven to the best decoloring agent. For a 100 mL reactive red K-2G sample （CODcr 400 mg/L, 25 000 chromaticity color）, 0.5 g bentonite pretreated and 2.5 mL PAC is enough to decolor wastewater up to 99.92% and the sediment time is short. Non-degradable dyes such as active red X-3B and K-GN orange are declored completely as well. Raw sewage （low chromaticity color） is decolored completely at a bentonite dosage of 0.00 1g. More researches prove the high practical value of this process.
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| 关 键 词： | 废水处理 重复利用 凝固作用 膨润土 吸附作用 |
| 收稿时间： | 2006-08-20 |
| 修稿时间： | 2006-11-05 |
Experimental Study of Wastewater Treatment of Reactive Dye by Phys-Chemistry Method |
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| YANG Yan-wu ZHOU Tong-ling QIAO Qi-cheng CHEN Shuo.Experimental Study of Wastewater Treatment of Reactive Dye by Phys-Chemistry Method[J].Journal of China University of Mining and Technology,2007,17(1):96-100. |
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| Authors: | YANG Yan-wu ZHOU Tong-ling QIAO Qi-cheng CHEN Shuo |
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| Affiliation: | 1. School of Environment & Spatial Informatics, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China;2. Lab and Equipment Administration Office, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China;3. School of Foreign Studies, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China |
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| Abstract: | Wastewater, which involves easy-soluble reactive dyes, especially non-degradable dyes, is very difficult to decolor efficiently by normal processes such as coagulation process and biological treatment. The high chromaticity seriously hinders the reuse of reactive dye waste water. In this paper, a new method by bentonite adsorption and coagulation (PAC) is employed for removing color from synthetic dye waste water which contains reactive red K-2G, K-RN blue, K-GR blue, X-3B red, K-GN orange, KB-3G yellow, K-2BP red, K-RN yellow and K-6G yellow. Bentonite pretreated by 4% CTMAB and milled to 160 order screen is proven to the best decoloring agent. For a 100 mL reactive red K-2G sample (CODcr 400 mg/L, 25 000 chromaticity color), 0.5 g bentonite pretreated and 2.5 mL PAC is enough to decolor wastewater up to 99.92% and the sediment time is short. Non-degradable dyes such as active red X-3B and K-GN orange are declored completely as well. Raw sewage (low chromaticity color) is decolored completely at a bentonite dosage of 0.001g. More researches prove the high practical value of this process. |
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| Keywords: | reactive dye wastewater pretreated bentonite chromaticity color waste water reuse |
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