DETAIL Publication
| Featured Article | |
| Title: |
Modeling Volatile Organic Compound Transport in Composite Liners |
| Document Type: | Journal Articles |
| Author: | Min-Gyun Park, Tuncer B. Edil, and Craig H. Benson |
| Year: | 2012 |
| Journal: | J. Geotechnical and Geoenvironmental Engineering |
| Volume: | 138 |
| Issue: | 6 |
| Pages: | 641-657 |
| Keywords: | Volatile organic compounds, Geomembranes, Landfills, Tansport, Composite liners, Partition coefficient, Diffusion coefficient, Modeling |
| Abstract: | Data from bench-scale composite liner experiments were compared with predictions made with two models, a finite-difference model and a semianalytical model, used to predict volatile organic compound (VOC) transport through composite liners. Transport parameters for the geomembrane and clay for five common VOCs were measured independently and used as input. Predictions from both models for all five VOCs were essentially identical. Excellent agreement was obtained between the predicted and measured concentrations for all five VOCs without model calibration. However, inherent variability in measured transport parameters has a significant effect on predictions. Volatile organic compound concentrations in the clay liner near the geomembrane-clay interface depend primarily on transport parameters for the geomembrane. However, this becomes less significant as the distance from the geomembrane-clay interface increases. Permalink: ASCE Subject Headings: Organic compounds, Geomembranes, Landfills, Liners, Composite materials, Coefficients, Models © 2012. American Society of Civil Engineers Read More: http://ascelibrary.org/doi/abs/10.1061/(ASCE)GT.1943-5606.0000630 |
| Url: | http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000630 |
| Author Address: | 1Research Associate, Geological Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706. E-mail: mgpark@wisc.edu 2Professor, Geological Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706 (corresponding author). E-mail: edil@engr.wisc.edu 3Wisconsin Distinguished Professor and Chair, Geological Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706. |
| Focus Area: | Remediation, Near-Surface Disposal & Long Term Stewardship |