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Numerical model for the uptake of groundwater contaminants by phreatophytes

By:
, , and
DOI: 10.2495/WP080361

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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.

Additional Publication Details

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
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
Conference Date:
9 June 2008 through 11 June 2008