Plants in Filterra units accumulated greater concentrations of nutrients and metals than the same tree species in the landscape.
Research conducted by Mindy Ruby, Filterra Bioretention Systems, and Dr. Bonnie Appleton, Virginia Tech University designed to begin studying the opportunity for woody landscape plants to be used for phytoremediation in systems like the Filterra Bioretention System. While Salix sp. are known to be hyper accumulators of nutrients and metals in the landscape, screening typical landscape trees and shrubs for their phytoremediation benefits hasn’t been done. Locations in Richmond and Norfolk, VA were selected with plants placed in Filterra units and planted in the landscape adjacent to the units. The study included Cornus sericia (red twig dogwood), Lagerstroemia sp. (crape myrtle) and Ilex sp. (holly). All plants in the Filterra units accumulated greater concentrations of N, P, Cu and Zn. (2010) Accessed through ResearchGate.