| 铝酸钙去除水中氟离子的条件研究 |
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| 引用本文： | 蔚东升,张梅玲,陈慧婷,徐泽林,赵玉明.铝酸钙去除水中氟离子的条件研究[J].环境科学与技术,2006,29(7):87-88,96. |
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| 作者姓名： | 蔚东升 张梅玲 陈慧婷 徐泽林 赵玉明 |
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| 作者单位： | 南京大学环境学院污染控制与资源化国家重点实验室,南京,210093 |
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| 摘 要： | 采用铝酸钙粉,进行去除模拟废水中氟离子的条件研究,并进行了pH值、温度等多项条件的系列实验。实验得出,当氟离子浓度为215mg/L,反应溶液为200mL,反应温度是影响去除率的主要因素,去除主要发生在前15min,除氟主要依靠沉淀、络合等作用。pH为11,40℃时,投加量50g/L时,去除率可以达到95.7%以上,出水可直接达标。
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| 关 键 词： | 铝酸钙 氟离子 温度 沉淀络合 |
| 文章编号： | 1003-6504（2006）07-0087-03 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005-05-252005-11-10 |
Removal Conditions of Fluoride in Water by Calcium Aluminate |
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| YU Dong-sheng,ZHANG Mei-ling,CHEN Hui-ting,XU Ze-lin,ZHAO Yu-ming.Removal Conditions of Fluoride in Water by Calcium Aluminate[J].Environmental Science and Technology,2006,29(7):87-88,96. |
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| Authors: | YU Dong-sheng ZHANG Mei-ling CHEN Hui-ting XU Ze-lin ZHAO Yu-ming |
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| Abstract: | Calcium aluminate was used to remove F-in simulated wastewater.The influence of dosage,temperature and pH on F-removal was investigated by conducting a series of batch experiments.Result showed that F-removal evidently depended on the factor of temperature with F-concentration of 215mg/L and solution volume of 200mL.The reaction took place mostly in 15 minutes,and precipitation and complexation were dominating mechanisms.F-removal efficiency was over 95.7% and up to the criteria when pH was 11,temperature 40℃ and dosage 50g/L. |
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| Keywords: | calcium aluminate fluoride temperature precipitation and complexation |
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