A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Unsaturated-Zone Leaching and Saturated-Zone Mixing Model in Heterogeneous Layers
Summary A screening level model was developed for simulation of pollutant migration through the unsaturated-zone and subsequent mixing within the saturated-zone. This one-dimensional finite difference model simulates the transport processes of liquid-phase advection, liquid- and vapor-phase dispersion, sorption, and decay of the contaminant. The model estimates contaminant concentration in the saturated-zone by using a simple mass balance technique for mixing of the unsaturated-zone leachate with the groundwater. The model can be a useful tool in making preliminary assessments of the potential impacts of contaminants in the subsurface. The model can handle vertical heterogeneity of the soil columns and non-uniform initial contaminant concentration. It was verified by comparing its simulation results to an analytical solution and laboratory soil column experiments. In addition the model was validated against laboratory experiments with three different soil sample sizes of Ottawa quartz sand and 480 ppm saline water as a groundwater contamination source.
Unsaturated-Zone Leaching and Saturated-Zone Mixing Model in Heterogeneous Layers
Summary A screening level model was developed for simulation of pollutant migration through the unsaturated-zone and subsequent mixing within the saturated-zone. This one-dimensional finite difference model simulates the transport processes of liquid-phase advection, liquid- and vapor-phase dispersion, sorption, and decay of the contaminant. The model estimates contaminant concentration in the saturated-zone by using a simple mass balance technique for mixing of the unsaturated-zone leachate with the groundwater. The model can be a useful tool in making preliminary assessments of the potential impacts of contaminants in the subsurface. The model can handle vertical heterogeneity of the soil columns and non-uniform initial contaminant concentration. It was verified by comparing its simulation results to an analytical solution and laboratory soil column experiments. In addition the model was validated against laboratory experiments with three different soil sample sizes of Ottawa quartz sand and 480 ppm saline water as a groundwater contamination source.
Unsaturated-Zone Leaching and Saturated-Zone Mixing Model in Heterogeneous Layers
Lee, Samuel S. (author)
2007-01-01
13 pages
Article/Chapter (Book)
Electronic Resource
English
unsaturated-zone , saturated-zone , leaching model , groundwater , modelling , GUI Engineering , Theoretical and Applied Mechanics , Engineering Fluid Dynamics , Geotechnical Engineering & Applied Earth Sciences , Hydrogeology , Appl.Mathematics/Computational Methods of Engineering , Classical Continuum Physics
Analytical Model for Saturated/Unsaturated Hyporheic Zone Flow Due to Alluvial Well Depletions
| British Library Conference Proceedings | 2002
Monitoring Saturated and Unsaturated Zone Processes for Improving Integrated Modeling (Abstract)
| British Library Conference Proceedings | 2002