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| 表面活性剂在污染土壤修复中的应用 | |
| 引用本文： | 张永,廖柏寒,曾敏,雷鸣.表面活性剂在污染土壤修复中的应用[J].湖南农业大学学报(自然科学版),2007,33(3):348-352. |
| 作者姓名： | 张永 廖柏寒 曾敏 雷鸣 |
| 作者单位： | 1. 湖南农业大学,生物科学技术学院,湖南,长沙,410128 2. 中南林业科技大学,国际学院,湖南,长沙,410004 3. 湖南农业大学,资源环境学院,湖南,长沙,410128 |
| 摘 要： | 污染土壤淋洗修复技术中,淋洗剂的选择是影响这一技术应用的限制因素之一.目前研究的淋洗剂包括表面活性剂、有机或无机酸、螯合剂EDTA等.大量研究表明,表面活性剂能够去除土壤中的污染物,特别是有机污染物,提高污染土壤的修复效果.综述了表面活性剂在污染土壤修复中的应用.土壤有机污染修复中表面活性剂的作用主要体现在增溶洗脱土壤中有机污染物,提高有机物在水中的溶解度和流动性;增强土壤对有机污染物的吸附作用,即增强截留固定作用;改变吸附态或溶解态有机污染物的生物利用性.土壤重金属污染修复中表面活性剂的作用主要体现在离子交换和络合作用. |
| 关 键 词： | 表面活性剂 土壤修复 有机污染物 重金属 |
| 文章编号： | 1007-1032（2007）03-0348-05 |
| 修稿时间： | 2006-12-01 |
Application of surfactants to contaminated soil remediation |
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| ZHANG Yong,LIAO Bo-han,ZENG Min,LEI Ming.Application of surfactants to contaminated soil remediation[J].Journal of Hunan Agricultural University,2007,33(3):348-352. | |
| Authors: | ZHANG Yong LIAO Bo-han ZENG Min LEI Ming |
| Institution: | 1.a.College of Bioscience and Technology; b.College of Resources and Environment, HNAU, Changsha 410128, China; 2.International College, Central South University of Forestry and Technology, Changsha 410004, China |
| Abstract: | Extraction process with or without additives are employed to removal contaminants in soil.Additive which include surfactants,organic and inorganic acids,complexing agents such as EDTA,and so on,is one of limited factors in flushing remediation technology.It has been demonstrated high contaminants removal rates are possible by using surfactants.The addition of the surfactants can accelerate remediation work.This paper provides an overview of the function of surfactants in soil remediation.Function of surfactants for remediation of NAPLs include enhancing the solubility of the NAPLs,increasing NAPLs adsorption on soil and improving bioavailability of the NAPLs,while ion exchange and complexing are function of surfactants for remediation of soils contaminated by heavy metals. |
| Keywords: | surfactants soil remediation organic contaminants heavy metals |
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