Numerical model for the uptake of groundwater contaminants by phreatophytes
By: M.A. Widdowson, A. El-Sayed, and J. E. Landmeyer
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Abstract
Conventional solute transport models do not adequately account for the effects of phreatophytic plant systems on contaminant concentrations in shallow groundwater systems. A numerical model was developed and tested to simulate threedimensional reactive solute transport in a heterogeneous porous medium. Advective-dispersive transport is coupled to biodegradation, sorption, and plantbased attenuation processes including plant uptake and sorption by plant roots. The latter effects are a function of the physical-chemical properties of the individual solutes and plant species. Models for plant uptake were tested and evaluated using the experimental data collected at a field site comprised of hybrid poplar trees. A non-linear equilibrium isotherm model best represented site conditions.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Numerical model for the uptake of groundwater contaminants by phreatophytes |
| ISBN | 9781845641153 |
| DOI | 10.2495/WP080361 |
| Volume | 111 |
| Year Published | 2008 |
| Language | English |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 9 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Conference publication |
| Larger Work Title | WIT Transactions on Ecology and the Environment |
| First page | 371 |
| Last page | 379 |
| Conference Title | 9th International Conference on Modelling, Monitoring and Management of Water Pollution, Water Pollution 2008 |
| Conference Location | Alicante, Spain |
| Conference Date | June 9-11,2008 |
| Google Analytic Metrics | Metrics page |