Many types of wastes our stored in containment facilities surrounded by earth barriers and potentially lined with clay material. It is of general interest to the owners of such properties to determine where contaminants stored in such facilities will end up years down the road.
The ChemFlux software allows prediction of the movement of contaminants within the soil. When coupled with SVFlux the advective movement of contaminants can be determined. The software can be used to determine compliance of design with environmental regulatory agencies.
This example shows the calculation of contaminant movement through a clay dam.
Model filename: EarthDams > ClayDamNotched_Chem.svm
This particular model illustrates the use of ChemFlux in tracking the flow across an earth dam with a cut off located in the layer beneath it.The purpose of this numerical model is to get an idea for the movement of the contaminant underneath an earth dam structure.
Model filename: EarthDams > EarthDamCutoff.svm
The following example will introduce you to the three-dimensional model in CHEMFLUX. The model will be used to investigate if contaminant from a reservoir will travel to a river channel due to advection and dispersion processes within a 400 day time period. The 400 day time period was chosen as the time necessary to install a pumping well between the river channel and the reservoir. The well will be used to pump contaminant from the ground to ensure the plume will not reach the river channel. The example model begins with a brief description of the steady-state seepage analysis completed to provide CHEMFLUX with computed seepage gradients. Next a detailed set of instructions guides the user through the creation of the 3D contaminant transport model.
Model filename: Ponds > ReservoirChemFlux.svm
This example shows the flow of a plug of contamination released at ground surface for a time duration. (Tutorial Manual 2D Example Problem). Sudicky (1989) developed the following example. The model considers flow and solute transport in a heterogeneous cross section with a highly irregular flow field, dispersion parameters that are small compared with the spatial discretization, and a large contrast between longitudinal and transverse dispersivities (Zheng and Wang, 1999).
Model filename: ContaminantPlumes > VanderHeijde.svm
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