| 煤渣吸附水中氟和砷的研究 |
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| 作者姓名： | 李娟 刘新春 余志晟 易鑫 琚宜文 |
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| 作者单位： | 1. 中国科学院大学资源与环境学院, 北京 100049;
2. 中国科学院大学地球科学学院, 北京 100049 |
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| 基金项目： | 国家科技重大专项（2011ZX05060-005）资助 |
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| 摘 要： | 采用煤渣静态吸附水中氟和砷.考察煤渣投加量、震荡时间、进水浓度和pH值对煤渣吸附性能的影响.实验结果表明，每100 mL污水较为合适的煤渣用量为6 g；煤渣对氟和砷的最佳吸附时间为3 h；对高氟水的吸附效果较好，对低氟水的去除效果相对较差；对高浓度及低浓度的砷均具有较好的吸附效果，去除率均达到95%以上；pH值对氟和砷的吸附影响不大.
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| 关 键 词： | 煤渣 氟 砷 |
| 收稿时间： | 2013-05-22 |
| 修稿时间： | 2013-09-30 |
Study on adsorption of fluorine and arsenic in water by coal cinder |
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| Authors: | LI Juan LIU Xinchun YU Zhisheng YI Xin JU Yiwen |
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| Institution: | 1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;
2. College of Earth Science, University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The adsorption characteristics of coal cinder to fluorine and arsenic were studied with static adsorption experiments, and the influences of oscillation time, sorbent dosage, initial concentration, and pH on the adsorption characteristics were investigated. The results show that in the optimal processes sorbent dosage is 6 g and adsorption time is 3 h. Adsorption of fluorine by coal cinder is more effective at higher concentration of fluorine than at lower concentration. However, adsorption rates of arsenic are always more than 95%,whatever the initial concentrations. The acidity has little influence on the adsorption characteristics of fluorine and arsenic. |
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| Keywords: | coal cinder fluorine arsenic |
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