Diffusion Characteristics of Lead, Zinc, Cadmium in a Novel Phosphate-Based Binder Stabilized Soil

摘要：

　　Effective diffusion coefficient and partition coefficient are essential parameters to quantitatively assess the adverse impact of contaminated or stabilized soil on surrounding environment.In this study,a new method is developed to back-calculate the effective diffusion coefficient and partition coefficient of contaminants in the stabilized soil.Furthermore,the migration characteristics of Pb,Zn and Cd in a novel phosphate-based binder stabilized soil are investigated.The test results show that the effective diffusion coefficients of Pb and Zn(8.5× 10-13 m2/s and 7 × 10-13 m2/s)in the stabilized soil are significantly lower than that of Cd(1.5 × 10-12 m2/s).While the partition coefficients of Pb and Zn(8200 mg/L,4500 mg/L)are significantly higher than that of Cd(2100 mg/L).

关键词： Solidification/stabilization Heavy metals Contaminated soil Effective diffusion coefficient Partition coefficient

作者: Ya-Song Feng Yan-Jun Du Wei-Yi Xia Wei-Wei Ren

作者单位: Institute of Geotechnical Engineering,Southeast University,Nanjing 210096,China

会议类型: 国际会议

会议名称: The 8th International Congress on Environmental Geotechnics(第八届国际环境土工大会)

会议地点: 杭州

会议语种:英文

页码: 669-675

在线出版日期: 2018-10-28（万方平台首次上网日期，不代表论文的发表时间）