What Makes it so Effective?
- Injected as a neat solution, typically at 10% to 20% of pore space, while requiring no dilution
- High persistence in the subsurface for five to 10 years (or more) to account for DNAPL diffusion into the eZVI
- A propriety manufacturing process producing eZVI consistent with the NASA patent
- Can be integrated into combined spatial remedies with other chemistries, including bioremediation, chemical oxidation/reduction, or sequestration
How Does It Work?
SourceKill involves placing micro-scale zero valent iron (ZVI) particles into a surfactant-stabilized, biodegradable water-in-oil emulsion. This emulsion is injected into the DNAPL-contaminated zones. The DNAPL is then pulled (sequestered) into the emulsion where the CVOCs react with the ZVI. Through a process known as reductive dehalogenation, the DNAPL and its daughter products are degraded into ethene. The by-products are finally broken down through biological activities in the subsurface.
