Enabling materials and processes for the subsurface injection of zero valent metal nanoparticles

Chlorinated solvents and toxic metals used at Tinker AFB have contaminated sub-surface groundwater. These contaminants pose a threat to the local aquifers where exposed individuals could be subjected to adverse health effects. Traditional remediation protocols are either too expensive or not practical for addressing the contaminants at this and other facilities. Recently methodologies have emerged that treat these toxic substances directly in the subsurface. One such technique involves injecting very small and highly reactive metal particles into the ground where they react with and convert trichloroethylene and other toxic compounds to innocuous products. While showing promise on a pilot scale, these nanocrystalline materials are prohibitively expensive and often difficult to produce in large quantities. To address the market need and in accordance with Presidential Executive Order 13229, Encouraging Innovation in Manufacturing, OnMaterials has developed a domestic source for lower cost, injectable zero valent metal. The Phase I program will identify contaminated sources at Tinker AFB, inject nanopowder into the subsurface, and monitor the changes in groundwater properties and composition. If successfully demonstrated in the Phase I program and scaled in subsequent efforts the concept will provide an innovative solution for decontaminating groundwater at both military and industrial facilities.