| 天然富碳沉积物中菲的吸附行为研究 |
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| 引用本文： | 杨毅,刘敏,陈振楼,许世远.天然富碳沉积物中菲的吸附行为研究[J].环境科学,2009,30(7):2087-2092. |
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| 作者姓名： | 杨毅 刘敏 陈振楼 许世远 |
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| 作者单位： | 华东师范大学资源与环境学院,教育部地理信息科学重点实验室,上海,200062 |
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| 基金项目： | 国家自然基金重点项目（40730526）；上海市科委“十一五”重大科技攻关项目（07DZ12037）；上海市基础研究重点项目（05JC14059） |
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| 摘 要： | 根据密度和粒度，对受煤矿活动影响的天然沉积物进行分离，并研究原始沉积物和各组分对菲的吸附行为.岩相分析鉴别出沉积物中富含煤和各种煤的生成物，这些富碳物质对沉积物中PAHs的行为意义重大.分别应用了Freundlich以及分配和填孔二元模型对实验数据进行拟合.结果表明，各组分对菲的吸附均表现出非线性的吸附特征，其n值在0.72～0.76之间.轻组分lgKFr高达4.03，显示出与原煤相当的吸附容量.同时，相比Freundlich模型，二元模型表现出更好的拟合度，揭示了低cw下以“填孔”为主导，高cw下以“分配”为主导的吸附机制.富含富碳物质的轻组分虽然在沉积物中含量不足5%，但该组分对整个沉积物吸附量的贡献率高达60%以上.
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| 关 键 词： | 富碳物质 沉积物 吸附 菲 |
| 收稿时间： | 2008/8/28 0:00:00 |
| 修稿时间： | 2008/11/3 0:00:00 |
Sorption Behavior of Phenanthrene to Natural Carbonaceous Sediments |
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| YANG Yi,LIU Min,CHEN Zhen-lou and XU Shi-yuan.Sorption Behavior of Phenanthrene to Natural Carbonaceous Sediments[J].Chinese Journal of Environmental Science,2009,30(7):2087-2092. |
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| Authors: | YANG Yi LIU Min CHEN Zhen-lou and XU Shi-yuan |
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| Institution: | Key laboratory of Geographic Information of the Ministry of Education;School of Resource and Environmental Sciences;East China Normal University;Shanghai 200062;China |
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| Abstract: | Natural sediments impacted by previous coal mining activities were collected and separated according to grain size and density. Sorption experiments were performed with original sediments and different sub-fractions. Abundant coal and other coal-derived particles were identified using organic spectrographic analysis. Both Freundlich and partitioning and pore-filling model were applied to fit the experimental data. All sorption isotherms showed non-linear sorption properties,with n in the range of 0.72-0.76.... |
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| Keywords: | carbonaceous materials sediment sorption phenanthrene |
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