Comparison of Uncapped and Analytical and Numerical Capped Model Predictions

analytical model in the form of a Mathcad spreadsheet and the numerical model

are available from the author

Danny Reible, Director

Hazardous Substance Research Center/S&SW

Louisiana State University

Baton Rouge, LA 70803

Ph: 504/388-3070, Fax: 504/388-1476, e-mail: reible@che.lsu.edu

The model predictions for flux are shown in Figure B2.

Comparison of Uncapped and Analytical and

Numerical Capped Model Predictions

The first case is for a contaminated system with no cap. The result is pre-

sented as the solid line in Figure B2. The flux starts out at a high value (effec-

tively infinite at time of first exposure of the contaminated sediment) and decreases

with time.

Figure B2. Example calculations of contaminant flux through cap

B23

Appendix B Model for Chemical Containment by a Cap