摘要
通过室内淋滤实验分析垃圾渗滤液-水-岩相互作用过程。实验发现Cl-的保守性是相对的,其中在粉砂土中Cl-存在吸附解吸现象,平衡浓度为4446mg/L时,分配系数Kd=0.18L/kg,而在壤土(亚粘土)中Cl-保持保守。SO42-和F-积极参与水岩相互作用,粉砂土和壤土对SO42-和F-均有较强的吸附作用。阴离子交换作用的结果使大量的NO 3-从粉砂土中解吸出来。
According to the laboratory column leaching tests,it is found that the conservation of Cl^-is definite different in different lithology.Cl^-is conservation in the soil but shows the adsorption in the fine sand,and when the balance concentration is about 4446mg /L the distribution coefficient is 0.18L /kg.SO4^2-and F^-are concerned with the water-rock interaction actively,and the fine sand and the loam are strong sorption in the tests.As the result of the anions interaction,a large amount of NO 3^-releases from the fine sand.
出处
《工程勘察》
CSCD
北大核心
2010年第7期42-45,52,共5页
Geotechnical Investigation & Surveying
基金
中国地质调查局地质调查项目(No.1212010634404)
关键词
垃圾渗滤液
溶质迁移
土柱淋滤实验
水岩相互作用
landfill leachate
contamination transport
leaching test of soil column
water-rock interaction
