A mathematical model is developed to describe the contaminant transport, sorption, and biodegradation in saturated porous media. In the model development, sorption was accounted for as a kinetic process for the contaminant transport. In addition, a double Monod function was incorporated into the model to describe the biodegradation of contaminants and utilization of oxygen. In the description o...

An analytical model was formulated to describe the contaminant species transport and removal by the process, termed as coupled electric-hydraulic gradient assisted by ion exchange medium (CEHIXM). An analytical solution was performed in terms of eigenvalues and compared with the one-dimensional laboratory experimental results. The analytical solutions of the contaminant concentrations agreed to...

In this paper the development of a quasi-three-dimensional numerical model that can be used for quantifying groundwater inputs and associated contaminant discharged from coastal aquifers into the coastal zone at a regional scale is presented. The present model is called MODSharp. In order to handle problems at a regional scale, the sharp interface approach which is used for conceptualising seaw...

The study of airflow and contaminant transport in airliner cabins is very important for creating a comfortable and healthy environment. This paper shows the results of such a study by conducting experimental measurements and numerical simulations of airflow and contaminant transport in a section of half occupied, twin-aisle cabin mockup. The air velocity and air temperature were measured by ult...

It is important to simulate a groundwater transport process, e.g., pollutant migration, through the vadose zone and subsequent mixing within the saturated zone to assess potential impacts of contaminants in the subsurface in preliminary stages. It is challenging to simulate heterogeneous soil characteristics and non-uniform initial contaminant concentration. This paper proposes a vertically het...

Horizontal contaminant transport through unsaturated soil been demonstrated both analytically and experimentally. The water and solute transport equations were solved using the Boltzman transformation, to convert the partial differential equations to ordinary differential equations. The resulted mathematical model was verified using experimental data. A laboratory scale column system was constr...