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August 12, 2022
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Phytoremediation of Organics
Internet-based seminar
Hosted by U.S EPA
The Superfund Basic Research Program (SBRP), Office of Superfund Remediation and Technology Innovation (OSRTI)

The Superfund Basic Research Program (SBRP), in collaboration with the Environmental Protection Agency (EPA) Office of Superfund Remediation and Technology Innovation (OSRTI) presents "Phytoremediation." This series of online seminars will focus on the science of incorporating phytoremediation into hazardous waste site remediation plans.

This, the second of three sessions, will feature Dr. Ari Ferro, Principal Environmental Scientist, URS Corporation and Drs. Stuart Strand and Sharon Doty, SBRP-University of Washington.

Dr. Ferro will discuss the principles and application of phytoremediation to remove or stabilize contaminants in soils, groundwater or wastewater. He will discuss phytoremediation processes that enhance the rates of contaminant removal, the role of transpiration and methods for measuring rates of water use for tree stands. The results of modeling studies assessing the formation of groundwater capture zones by stands of deep-rooted trees, and the cultural practices that are used to encourage the development of deep roots, will be discussed. Three common applications of the technology will be discussed and highlighted with specific case studies: 1) Biological "pumping and treating" of groundwater, 2) Irrigation of tree stands with recovered groundwater, and 3) Hydraulic control of groundwater contaminants using deep-rooted trees.

Drs. Strand and Doty will present their research with mammalian cytochrome P450 2E1. Mammalian cytochrome P450 2E1 has been expressed in plants, tobacco and poplar, and shown to increase the degradation of its cosubstrates — trichloroethylene, benzene, and carbon tetrachloride — by hundreds of times. The pollutants that their plants can degrade include the most commonly found groundwater pollutants that are probable human carcinogens. Degradation rates by transformed and wild type trees will be presented. The range of substrates degraded by the 2E1 transformed plants and their limitations will be reviewed. Results from ongoing full-scale tests of 2E1 transformed poplar will be reported.

The session will be moderated by Felicia Barnett, Office of Research and Development, Superfund and Technology Liaison, U.S. EPA, Region 4. The final session on "Phytoremediation of Metals" will be broadcast on CLU-IN November 25th from 2-4pm.
 For general information contact Justin Crane by telephone at 919-794-4702
 Upcoming Events

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Archives of past CLU-IN internet seminars are available in the CLU-IN Studio at You will be able to view the slide and hear an audio stream of the presentation as it occurred.

Previous Events (click to view/hide)
Bullet  Live Online Class, Internet Based
  November 12, 2008 - November 12, 2008
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