Tersus Environmental - Innovative Sustainable Green Technologies

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Advancing the Science of Enhanced Reductive Dechlorination

It is time to upgrade your emulsified vegetable oil (EVO) to EDS-ER, the next evolution in enhanced bioremediation. EDS-ER (electron donor solution – extended release) is a patent pending long lasting water-soluble oil, designed to release bio-available hydrogen over a period of 3 to 5 years. EDS-ER with a neutral pH has an expected shelf life in excess of two years. Unlike water-based EVO products, EDS-ER is not affected by freezing temperatures.

Advancing the Science of NAPL Recovery

Supersaturated Water Injection (SWI) is an effective technology for Nonaqueous Phase Liquid (NAPL) recovery. Carbon dioxide (CO₂) supersaturated water injected into the subsurface results in the nucleation of CO₂ bubbles at and away from the injection point. As the supersaturated liquid flows through the porous medium, gas evolution occurs in situ as the system returns to thermodynamic equilibrium. The nucleating bubbles coalesce, rise and volatilize residual NAPL ganglia. SWI offers the following benefits:

Light NAPL (LNAPL) and Dense NAPL (DNAPL) recovery enhancement system for trapped and immobile NAPL mass
Uses CO₂ to strip volatile NAPL component for capture in the unsaturated zone
Mobilizes liquid NAPL trapped in aquifer matrix for recovery

Click on the "Read more..." below to view a pilot demostration video and to learn more about how to implement this technology at your site.