| 应用表面活性剂治理包气带石油污染的研究 |
| 摘要点击 839 全文点击 1064 投稿时间：1995-11-20 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 地下水 石油污染 表面活性剂 包气带 |
| 英文关键词 groundwater petroleum contamination surfactant unsaturated zone |
|
| 中文摘要 |
| 为了探讨地下水石油污染的治理方法,应用灌注表面活性剂溶液法去除地下水系统中包气带石油类物质污染的实验研究。从市售9种非离子型表面活性剂中优选出AEO-9和SA-202种脂肪醇聚氧乙烯醚类表面活性剂,确定了实验条件下的最佳去油浓度。1次性清洗效率最高达94%,土柱淋洗与块状石灰岩柱淋洗也取得较满意的结果。研究表明原地灌注表面活性剂技术可以在现场污染治理中进一步试验应用。 |
| 英文摘要 |
| The paper focused on the application of aqueous surfactant washing for cleaning up petroleum contamination in unsaturated zone.Regional geographical features and contamination characteristics have been investigated. Nine commercial nonionic surfactants were analyzed and tested.Their critical micelle concentrations were measured and their effects on emulsification and solubilization of oil and benzene as well as on soil dispersion were compared.The results showed that the best surfactants are AEO-9 and SA-20,i.e.,alcohol polyethoxylated ethers.Their optimum concentrations were also determimed.In batch-washing tests the highest removal efficiency can be as high as 94%. Results of leaching tests for soil columns and lime stone columns were satisfactory as well.From this study,it is clear that the application of surfactants can be included in field experimental research for the treatment of contaminated unsaturated zone of groundwater. |
