摘要
对有毒有害的重金属离子在粘土衬层中自然渗透、迁移、转化进行研究。室内模拟实验表明，铅、镉的二价离子在粘土衬层中的迁移过程中，可生成难溶性的沉淀物质，阻碍了液体的渗透，因而导致了渗透系数比纯水还低。此外，实验还研究了浓度、离子半径对渗透系数、迁移速度的影响。
A study on infiltration,transportation and transformation of hazardous and toxic heavy metal ions in compacted clayliner has been carried out.Indoor simulation experiments show that Pb and Cd (Ⅱ) ions,while transportation through the compacted clayliner,may produce indissoluble materials which prevent liquid from infiltrate into the compacted clayliner.Therefore,the permeability coefficients of Pband Cd (Ⅱ) inos would be smaller than that of pure water.In addition,experiments have been further made to study the effects of concentration and ion radius on permeability coefficient and transportation rate.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
1997年第4期56-60,共5页
Research of Environmental Sciences
