Plant aided bioremediation in the vadose zone: model development and applications

Journal of Contaminant Hydrology
Kijune SungMalcolm C Drew

Abstract

Phytoremediation has the potential to enhance clean up of land contaminated by various pollutants. A mathematical model that includes a two-fluid phase flow model of water flow as well as a two-region soil model of contaminant reactions was developed and applied to various bioremediation scenarios in the unsaturated zone, especially to plant-aided bioremediation. To investigate model behavior and determine the main parameters and mechanisms that affect bioremediation in unplanted and planted soils, numerical simulations of theoretical scenarios were conducted before applying the model to field data. It is observed from the results that parameters affecting the contaminant concentration in the water phase, such as aqueous solubility, the octanol-water partition coefficient, and organic carbon content of the soil controlled the contaminant fate in the vadose zone. Simulation using the developed model also characterized the fate and transport of the contaminants both in planted and unplanted soils satisfactorily for field applications. Although phytoremediation has the potential for remediation of contaminated soils, results from both modeling and field studies suggested that plants may not always enhance the remediation efficienc...Continue Reading

References

Jul 30, 2002·Journal of Contaminant Hydrology·Kijune SungMalcolm C Drew
Jun 1, 1997·Annual Review of Plant Physiology and Plant Molecular Biology·Malcolm C. Drew
Feb 1, 1995·Environmental Science & Technology·P B Hatzinger, M Alexander
Feb 1, 1995·Environmental Science & Technology·L P Wackett, D L Allan
Nov 1, 1995·Environmental Science & Technology·M Alexander

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Citations

Jul 30, 2002·Journal of Contaminant Hydrology·Kijune SungMalcolm C Drew
Oct 30, 2015·International Journal of Molecular Sciences·Anthea Johnson, Naresh Singhal
Dec 21, 2010·British Journal of Haematology·Andrea GallaminiUNKNOWN Gruppo Italiano Terapie Innovative nei Linfomi (GITIL)

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