喹啉污染土壤的电动强化修复研究  

Enhanced electrokinetic remediation of quinoline-contaminated soils

作　　者：任大军[1] 周思思[1] 刘剑[1] 张元元[1] 

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081

出　　处：《华中科技大学学报（自然科学版）》2012年第4期114-117,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：湖北省自然科学基金资助项目(2010CDB03502)

摘　　要：以高岭土为实验土壤,喹啉为代表污染物,研究了不同电压梯度和运行时间下土壤中喹啉的迁移特征和效果,揭示了利用电动力学技术迁移土壤中喹啉的作用机理.结果表明:电动力学过程能有效地促进土壤中喹啉的解吸附和迁移,迁移速率和距离在一定条件下随电压强度升高而增大;电渗析和电迁移是其主要作用机理,均推动喹啉向阴极移动.Kaolin was selected as a test soil and quinoline was investigated as a typical pollutant. The characteristic of migration and its effect of quinoline in Kaolin under different voltage gradient and experimental time were studied, revealing the mechanism of using electrokinetic technology to remediate the quinoline-contaminated in soils. The results show that the electrokinetic transport processes can effectively stimulate the desorption and movement of the quinoline in the test soils. Migration rate and distance of quinoline will increase along with the voltage gradient growth under some conditions. Electromigration and electroosmosis are the main mechanisms both driving the quinoline migrate toward the cathode.

关 键 词：喹啉 电动力学 电渗析 电迁移 土壤 

分 类 号：X53[环境科学与工程—环境工程]