| 凹凸棒石对水中Mn2+的吸附特性研究 |
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| 引用本文： | 马纯照,林少华. 凹凸棒石对水中Mn2+的吸附特性研究[J]. 广东化工, 2010, 37(12): 99-100 |
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| 作者姓名： | 马纯照 林少华 |
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| 作者单位： | 寿光市建设工程管理处,山东,寿光,262700;南京林业大学,土木工程学院,江苏,南京,210037 |
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| 摘 要： | 通过静态试验,对凹凸棒石吸附去除水中Mn2+的特性进行了研究,重点讨论了焙烧和酸化处理对吸附的影响。结果表明,凹凸棒石对水中Mn2+吸附过程可以班厄姆公式进行拟合。弗兰德利希吸附等温式可以更好地描述Mn2+在凹凸棒石上的吸附过程。当焙烧温度在105～400℃,焙烧处理对凹凸棒石吸附去除Mn2+的影响不明显,当焙烧温度在500℃时,凹凸棒石对Mn2+的吸附去除率显著降低。凹凸棒石对Mn2+的吸附去除率随着酸化浓度的增加先减小而后增大,在HCl浓度为4 mol·L-1时达到最低。
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| 关 键 词： | 凹凸棒石 除锰 吸附 |
Study on Adsorption Characteristics of Mn2+ by Attapulgite |
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| Ma Chunzhao,Lin Shaohua. Study on Adsorption Characteristics of Mn2+ by Attapulgite[J]. Guangdong Chemical Industry, 2010, 37(12): 99-100 |
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| Authors: | Ma Chunzhao Lin Shaohua |
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| Affiliation: | 1. Shouguang Construction Project Management Office, Shouguang 262700; 2. College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China) |
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| Abstract: | Adsorption characteristics of Mn^2＋ by attapulgite were investigated experimentally using batch reactor, and the effects of calcination and acid treatment were disscussed in particular. Experiments showed that removal process of Mn^2＋ by attapulgite can be described by Bangham Formula. Freundlich model represents the adsorption isotherms well. Heat-treatment temperature had little effect on adsorption capacity of attapulgite lor Mn^2＋ from 105-400 ℃. Adsorption capacity decreased at 500 ℃. With increasing HCI concentration of acid treating solution, adsorption capacities for Mn^2＋ decreased firstly and then increased, a minimum was obtained at 4 mol·L^-1 of HCl concentration. |
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| Keywords: | attapulgite manganese removal adsorption |
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