| 焙烧水滑石吸附脱除水中硫酸根离子的研究 |
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| 引用本文： | 李冬梅,王海增,王立秋,赵正鹏.焙烧水滑石吸附脱除水中硫酸根离子的研究[J].矿物学报,2007,27(2):109-114. |
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| 作者姓名： | 李冬梅 王海增 王立秋 赵正鹏 |
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| 作者单位： | 中国海洋大学,化学化工学院,山东,青岛,266003 |
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| 基金项目： | 国家自然科学基金项目(20477041) |
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| 摘 要： | 利用焙烧水滑石对水中硫酸根离子进行吸附性能研究,考查了初始pH值、吸附时间、吸附剂用量等条件对吸附的影响。结果表明,焙烧水滑石对水中硫酸根离子具有良好的吸附能力。X射线衍射分析结果表明,水滑石及其焙烧产物对硫酸根的吸附机理不同。pH值对吸附的影响较大,pH值较低时吸附效果较好。吸附平衡符合Langmuir方程,室温下饱和吸附量为32.895 mg/g。
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| 关 键 词： | 水滑石 硫酸根 吸附 焙烧 |
| 文章编号： | 1000-4734（2007）02-0109-06 |
| 修稿时间： | 2006-07-08 |
REMOVAL OF SULFATE FROM AQUEOUS SOLUTION BY ADSORPTION OF IT ON LAYERED DOUBLE HYDROXIDES |
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| LI Dong-mei,WANG Hai-zeng,WANG Li-qiu,ZHAO Zheng-peng.REMOVAL OF SULFATE FROM AQUEOUS SOLUTION BY ADSORPTION OF IT ON LAYERED DOUBLE HYDROXIDES[J].Acta Mineralogica Sinica,2007,27(2):109-114. |
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| Authors: | LI Dong-mei WANG Hai-zeng WANG Li-qiu ZHAO Zheng-peng |
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| Institution: | Collgeg of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266003,China |
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| Abstract: | The removal of sulfate from aqueous solution by adsorption of it on calcined layered double hydroxides(CLDH) was studied.The effects of pH valve,sorbent dosage and adsorption time on the adsorption were investigated.The experimental results showed that the calcined product had an excellent performance in adsorbing sulfate.X-ray diffraction examination confirmed the mechanisms of sulfate sorption on layered double hydroxide and its calcined product are different.pH value plays an important role in adsorption,and the adsorption happened in 90 minutes and decreased with increasing pH.The adsorption is in conformity with the Langmuir isotherm type equation and the adsorption capacity is 32.895 mg/g. |
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| Keywords: | layered double hydroxide removal sulfate calcine |
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