| 活性MgO、La(OH)_3的表征及去除水中F~-的吸附性能研究 |
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| 引用本文： | 王磊,马伟青,刘坪鑫.活性MgO、La(OH)_3的表征及去除水中F~-的吸附性能研究[J].青岛理工大学学报,2014,35(4):87-92. |
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| 作者姓名： | 王磊 马伟青 刘坪鑫 |
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| 作者单位： | 1. 青岛市市政工程设计研究院有限责任公司,青岛,266061
2. 哈尔滨工业大学市政环境工程学院,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 实验采用活性MgO和La(OH)3为吸附剂,对其去除水中氟离子的性能进行了研究.采用BET、XRD、TEM、SEM、FTIR等现代化手段对活性MgO和La(OH)3进行表征.探讨了pH、吸附时间、初始浓度、吸附剂投加量以及共存离子等因素对这两种吸附剂吸附性能的影响.影响因素的研究表明,活性MgO吸附剂最适宜的吸附条件为pH=6~7,温度20~25℃,吸附剂投加量约为1g/L;La(OH)3的最适宜条件为pH=4,温度20~25℃,吸附剂投加量约为1g/L.活性MgO的吸附容量约为55mg/g,La(OH)3的吸附容量约为7.2mg/g.
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| 关 键 词： | 氟离子 吸附 活性MgO La(OH)3 |
Study on characterization of active MgO and La(OH)3 and their properties adsorbing fluorine ion from wastewater |
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| WANG Lei,MA Wei-qing,LIU Ping-xin.Study on characterization of active MgO and La(OH)3 and their properties adsorbing fluorine ion from wastewater[J].Journal of Qingdao Technological University,2014,35(4):87-92. |
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| Authors: | WANG Lei MA Wei-qing LIU Ping-xin |
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| Affiliation: | WANG Lei ,MA Wei-qing ,LIU Ping-xin (1. Qingdao Municipal Engineering Design Research Institute, Qingdao 266061, China; 2. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150001, China) |
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| Abstract: | The active MgO and La（OH）3 were selected as the adsorbents for removing fluorine ion from the wastewater. The active MgO and La（OH）3 were characterized by BET, XRD, TEM, SEM and FTIR. The effect of the pH, adsorption time, adsorbent dosage and fluorine ion initial concentration is studied. The result shows that the best condition for binding fluorine ion by active MgO is pH=6-7, 20-25 ℃, 1 g/L adsorbent dosage; the best condition for binding fluorion ion by La（OH）3 is pH=4, 20-25 ℃, 1 g/L adsorbent dosage. The maximal static adsorption capacity of active MgO and La（OH）3 is calculated as 55 and 7.2 mg/g. |
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| Keywords: | fluorine ion adsorption active MgO La（OH）3 |
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