October 9, 2013

« All News

Full-Scale Implementation of EK-Bio Begins with Participation of U.S. Army Engineer Research and Development Center Environmental Laboratory

Geosyntec Consultants is pleased to announce the implementation of full-scale field application of electrokinetic-enhanced bioremediation (EK-Bio). EK-Bio is an emerging technology for improving remediation of groundwater contaminants such as chlorinated solvents in low permeability formations including clay till by using direct current (DC) electric fields to facilitate subsurface transport and delivery of bioremediation agents such as electron donors and dechlorinating bacteria. This full-scale application is made possible, in part, through a Cooperative Research and Development Agreement (CRADA) between the U.S. Army Engineer Research and Development Center (ERDC) Environmental Laboratory and Geosyntec Consultants. Other participants in this effort include the Capital Region of Denmark and Denmark-based consultancy, NIRAS.

Preceding this full-scale application were bench- and pilot-scale tests to evaluate the efficacy of this technology. The bench-scale tests were conducted in tandem with the CRADA and in collaboration with Northeastern University (Boston, MA). Geosyntec, ERDC, and NIRAS performed a pilot-scale test at a location in the Capital Region of Denmark. This international collaboration was the first rigorous field pilot test of EK-Bio anywhere in the world. The full-scale application will be in operation for approximately three years. The U.S. Army Corps of Engineers recognized the potential performance benefits of the EK-Bio technology at low permeability sites by presenting a 2012 Green Innovation (Sustainability) Award to ERDC's Dr. David Gent.