轻质非水相流体(柴油)在多孔介质中的垂向运移  

Vertical migration of LNAPLs( diesel) in porous medium

作　　者：朱振慧[1] 高宗军[1] 张晓海[1] 于晨[1] 韩克[1] 

机构地区：[1]山东科技大学地球科学与工程学院,青岛266510

出　　处：《环境工程学报》2015年第4期1842-1848,共7页Chinese Journal of Environmental Engineering

基　　金：中国地质调查局地质调查工作项目(1212011220985)

摘　　要：紫外分光光度计为测量手段,通过简易一维土柱实验装置模拟了在不同条件下柴油在多孔介质中的运移。实验发现:柴油在两种不同粒径的砂土中垂向迁移的规律大致相同,并在持续淋滤108 h后,约90%的残余柴油都聚集在距离表层30 cm的范围内;间歇淋滤比持续淋滤更容易使柴油聚集在毛细带,不易向深处迁移;并在一定程度上验证了LNAPLs在地下环境中运动的渗漏、顶托阶段。Based on simple experiment device of one dimension soil column and UV-spectrophotometry,the vertical migration behaviors of LNAPLs in porous medium were simulated successfully. The simulation results showed that diesel gave similar vertical migration behaviors with different particle sizes. There was about 90% of residual diesel gathered in the top 30 cm layer after leaching 108 h. It was also observed that diesel will more easily gathered in capillary zone with intermittent leaching rather than continuous leaching. Meanwhile,the infiltration and push stages of LNAPLs migration in underground environment were verified to some extent.

关 键 词：轻质非水相流体 柴油 多孔介质 实验 运移 

分 类 号：X523[环境科学与工程—环境工程]