Abstract
The objective of the conducted computer simulations is the analysis of the LNAPL (Light Non Aqueous Phase Liquids) recovery by wells and piezometers with installed skimmers. The mathematical model calculations were conducted using the MARS programme (Multiple Areal Remediation Simulator) of the Drapen Aden Environmental Modelling, Inc. The programme solves the multiphase filtration equations by the finite elements method [2]. It permits conducting the calculations in an heterogeneous and anisotropic filtration field in transient conditions. The MARS simulator performs the flow calculations for a lighter-thanwater, free oil product appearing on the water table – LNAPL (Light NonAqueous Phase Liquids). It estimates the volume of the free and residual LNAPL. The recovery level of the remaining LNAPL is forecast. It is also possible to estimate the volume of the free and the residual oil and to periodically forecast the recovery level of the free LNAPL to be found in the ground and water environment.
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