摘要
通过室内土柱模拟试验,对柴油残留时土壤的毛细水上升规律进行了研究。结果表明,柴油污染砂土和壤粘土的毛细水上升速率随时间变化关系可用乘幂方程拟合。污染土壤毛细水上升高度和上升速率均随柴油质量分数的增加而减小,污染砂土的毛细水上升高度与含油率呈规律的负线性相关。疏水性石油污染物产生所谓"莲花效应"是土壤毛细水上升高度减小的原因。
Laboratory experiments were conducted for capillary rise of water in oil contaminated soils. The results showed that, at different oil contents, in sands and loamclay, empirical formula for capillary water up speed is power equation. Height of capillary rise in sands is negatively linear with oil content. Both height of capillary rise and up speed in loamclay were also reduced with the increasing of diesel oil content. Capillary water height of soils drops because of ＂Lotus Effect＂ produced by hydrophobicity of oil.
出处
《灌溉排水学报》
CSCD
北大核心
2011年第6期131-134,共4页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(40872150)
华北水利水电学院高层次人才科研启动项目(200906)
关键词
柴油
砂土
壤粘土
毛细水上升高度
diesel oil
sands
loamclay
height of capillary rise
作者简介
童玲（1979-），女，湖北襄樊人。讲师，主要从事水土环境治理研究。
