污染物迁移在不受管制的垃圾填埋场下面的vadose区,有损坏的地质膜
Yu-Zhang Bi1, Xin-Po Sun2, Qi Zou2
1College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
一个新的模型模拟了有机污染物从垃圾填埋场通过受损的地质膜迁移到土壤中. 增加的缺陷和含水量加快了运输,带来了风险,而土壤特性可以减缓迁移.
科学领域:
- 环境工程 环境工程
- 地质技术工程 地质技术工程
- 污染物水文地质学
背景情况:
- 由于潜在的污染物泄漏,不受监管的垃圾填埋场存在风险.
- 地质膜是关键的制障碍,但缺陷可能会损害完整性.
- 了解不和土壤中的污染物运输对于风险评估至关重要.
研究的目的:
- 开发一维分析模型,用于污染物从垃圾填埋场迁移.
- 将地质膜缺陷和不和土壤特性整合到模型中.
- 分析影响污染物运输和相关风险的关键因素.
主要方法:
- 开发了一个模拟污染物迁移的单维分析模型.
- 综合地质膜缺陷 (纹,孔) 和不和的土壤特性.
- 通过边界变换和拉普拉斯变换获得了分析解决方案.
主要成果:
- 增加的地质膜缺陷和土壤水含量加速了污染物运输.
- 较高的土壤不和指数显著延迟迁移和垂直透.
- 和度高,不和指数低的沿海地区面临更高的风险.
结论:
- 该模型有效地预测了不受监管的垃圾填埋场的污染物行为.
- 确定了影响污染物迁移和地下风险的关键因素.
- 提供了一种实际的工具,以加强垃圾填埋场封装系统管理和风险评估.
更多相关视频
13:16A Whole Cell Bioreporter Approach to Assess Transport and Bioavailability of Organic Contaminants in Water Unsaturated Systems
Published on: December 24, 2014
10:05Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation
Published on: July 4, 2014
相关概念视频
Bioremediation
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Contaminants and Errors
Another key consideration is determining the appropriate number of samples required to...
Deleterious Substances in Aggregate
Another type of impurity is clay and fine material that...
Conservation of Mass in Moving, Nondeforming Control Volume
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
