| 多氯联苯在土壤中的吸附规律及其影响因素研究 |
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| 引用本文： | 崔兆杰,宋善军,刘静.多氯联苯在土壤中的吸附规律及其影响因素研究[J].生态环境,2010,19(2):325-329. |
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| 作者姓名： | 崔兆杰 宋善军 刘静 |
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| 作者单位： | 1. 山东大学环境科学与工程学院,山东,济南250100
2. 山东建筑大学市政与环境工程学院,山东,济南250101 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 为了建立定量描述土壤中多氯联苯（PCBs）迁移规律的数学模型,以采自现代黄河三角洲地区的土壤为研究对象,针对类二噁英类多氯联苯PCB81及阻转类多氯联苯PCB95在土壤中的吸附行为进行了研究,获得了其吸附等温方程并分析了土壤有机质含量、颗粒组成、pH、矿物质含量等特性参数对吸附量的影响。结果表明,PCBs在土壤中的吸附行为符合Langmuir吸附等温方程;PCBs的吸附量与土壤中有机质含量和土壤粘粒含量呈正相关关系,与土壤pH值及土壤矿物质含量无明显相关关系。
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| 关 键 词： | 多氯联苯 土壤 吸附 Langmuir |
PCBs adsorption to soils:Isotherm modeling and influencing factors |
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| CUI Zhaojie,SONG Shanjun,LIU Jing.PCBs adsorption to soils:Isotherm modeling and influencing factors[J].Ecology and Environmnet,2010,19(2):325-329. |
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| Authors: | CUI Zhaojie SONG Shanjun LIU Jing |
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| Institution: | 1.School of Environmental Science and Engineering,Shandong University,Jinan 250100,China;School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China ) |
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| Abstract: | The adsorption of polychlorinated biphenyls (PCBs) in soils and the factors that influenced the process were studied. Adsorption experiments of 2 PCBs(PCB81,95)were performed on soil samples taken from the Yellow River delta. The adsorption isotherm data could be described by the Langmuir equation. The adsorption process was influenced by several properties of the soils: a positive correlation was found between the PCBs adsorbing quantities (Cs) and the organic matter content of the soils; the clay content of soils had promotion effects on Cs during the process; no evident effects were found between Cs and pH;Cs on soil minerals was magnitude smaller than those on virgin soil, indicating that soil minerals had no direct influence on adsorption |
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| Keywords: | Langmuir PCBs soil adsorption Langmuir |
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