| 表面活性剂对土壤粘粒絮凝-分散的影响 |
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| 引用本文： | 许中坚,陈津瑞.表面活性剂对土壤粘粒絮凝-分散的影响[J].环境科学研究,2003,16(3):62-64. |
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| 作者姓名： | 许中坚 陈津瑞 |
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| 作者单位： | 1.湘潭工学院,化工系,湖南,湘潭,411201 |
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| 摘 要： | 以浙江红壤为例,研究了两种阴离子表面活性剂和一种非离子表面活性剂对土壤粘粒悬浮液稳定性的影响.结果表明,表面活性剂对土壤粘粒的分散作用影响较大,且非离子表面活性剂的影响大于阴离子表面活性剂的影响.表面活性剂对土壤粘粒的分散作用主要是土壤颗粒对表面活性剂的电性吸附和配位吸附所致.表面活性剂进入土壤环境,会导致土壤粒子的分散,流动性增加;其结果是:一方面加重水土流失,另一方面使水环境污染程度加深.
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| 关 键 词： | 表面活性剂 粘粒 吸附 絮凝 分散 |
| 文章编号： | 1001-6929(2003)03-0062-03 |
| 收稿时间： | 2002/9/5 0:00:00 |
Effect of Surfactants on Flocculation and Dispersion of Soil Clay |
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| Institution: | 1.Department of Chemical Engineering,Xiangtan Polytechnic University,Xiangtan 411201,China2.Postgraduate School of China University of Geology,Wuhan 430074,China |
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| Abstract: | The effect of anionic surfactant and non\|ionic surfactant on the stability of soil clay, suspension has been studied,using red earth in Zhejiang Province.It is found that surfactants played an important role in dispersion of soil clay and the effect of non\|ionic surfactant on dispersion of soil clay is more obvious than that of anionic surfactant.The cause that surfactants lead to dispersion of soil clay is the adsorption of surfactant on soil.Therefore,surfactants entering soils can make soil erosion and water pollution more serious. |
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| Keywords: | surfactant clay adsorption flocculation dispersion |
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