磁改性海泡石对水源水中腐殖酸的吸附性能

doi:10.3876/j.issn.1000-1980.2017.02.003

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磁改性海泡石对水源水中腐殖酸的吸附性能

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10.3876/j.issn.1000-1980.2017.02.003

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TU991.2

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国家自然科学基金重点项目(51438006)

Adsorption capacity of magnetic-modified sepiolite forhumic acid in source water

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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 m²/g，比饱和磁化强度为32.36 A·m²/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。

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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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.(CHEN Wei, MA Long, LIU Haicheng (. Key Laboratory of Integrated Regulation, et al. Adsorption capacity of magnetic-modified sepiolite forhumic acid in source water[J]. Journal of Hohai University (Natural Sciences),2017,45(2):109-115.(in Chinese))

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收稿日期:2016-09-20
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在线发布日期: 2017-03-22
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