Abstract
A physically based numerical model is developed to simulate pollutant dissolution and transport in overland flow with infiltration effects. The numerical simulation of the complete process requires the solution of the unsteady, two-dimensional St. Venant equation, an equation for the infiltration process and the pollutant transport equation. The solubility rate equation proposed in this study is used to model the dissolution of a specified spatial distribution of solid pollutant into the liquid phase. The set of equations governing the complete system are integrated numerically using various finite difference algorithms. The model may be used to predict the ultimate fate of a surface applied solid pollutant by evaluating the proportions that are dissolved, infiltrate into the subsurface or are washed-off. The hydraulic portion of the model has been validated against published field data with satisfactory agreement. Verification of the complete model, however, is based on a comparison with limited laboratory test data. Proper validation would require extensive experimentation, preferably in the field which is, up to now, unavailable.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
