| 磁改性海泡石对水源水中腐殖酸的吸附性能 |
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| 引用本文： | 陈卫,马龙,刘海成.磁改性海泡石对水源水中腐殖酸的吸附性能[J].河海大学学报(自然科学版),2017,45(2):109-115. |
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| 作者姓名： | 陈卫 马龙 刘海成 |
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| 作者单位： | 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏 南京 210098; 河海大学环境学院, 江苏 南京 210098,河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏 南京 210098; 河海大学环境学院, 江苏 南京 210098,河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏 南京 210098; 河海大学环境学院, 江苏 南京 210098 |
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| 基金项目： | 国家自然科学基金重点项目(51438006) |
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| 摘 要： | 为去除水源水中的腐殖酸(HA),自制磁改性海泡石(MSEP)并对其物化性能表征,研究MSEP对水源水中腐殖酸的吸附、脱附行为。结果表明,MSEP比表面积为25.354 m~2/g,比饱和磁化强度为32.36 A·m~2/kg。MSEP对HA的吸附等温线可用Langmuir方程拟合,吸附动力学符合准二级动力学方程。
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| 关 键 词： | 磁改性海泡石 腐殖酸去除 吸附 脱附 比表面积 磁化强度 |
| 收稿时间： | 2016/9/20 0:00:00 |
Adsorption capacity of magnetic-modified sepiolite forhumic acid in source water |
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| CHEN Wei,MA Long,LIU Haicheng.Adsorption capacity of magnetic-modified sepiolite forhumic acid in source water[J].Journal of Hohai University (Natural Sciences ),2017,45(2):109-115. |
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| Authors: | CHEN Wei MA Long LIU Haicheng |
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| Institution: | Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China,Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China and Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China; College of Environment, Hohai University, Nanjing 210098, China |
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| Abstract: | In order to remove humic acid(HA)in source water, magnetic-modified sepiolite(MSEP)was made and its physicochemical characteristics were investigated. The adsorption and desorption behaviors of MSEP for humic acid in source water were studied. The results showed that the specific surface area and specific saturation magnetization of the MSEP were 25. 354 m2/g and 32. 36 A·m2/kg, respectively. The adsorption isotherm of MSEP to HA could be fitted with the Langmuir equation, and the adsorption kinetics could be described with the pseudo-second-order kinetics equation. |
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| Keywords: | magnetic-modified sepiolite removal of humic acid adsorption desorption specific surface area magnetization intensity |
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