C3 Technology

The C3 Technology (Patent Pending) developed by G.E.O. is a combination of cryogenic-cooling and compression processes with a proprietary regenerative adsorption technology that efficiently recovers volatile organic compounds (VOCs) from the off-gas vapor stream of soil vapor extraction (SVE) or dual phase extraction (DPE) systems. The chemical is recovered as a non-aqueous phase liquid (NAPL) that is temporarily containerized in appropriate vessels for recycling or proper disposal. Generally, greater than 99.8% of the VOCs are recovered from the vapor stream. Dependent upon the contaminant and State or local agency, final effluent may be polished with granular activated carbon (GAC).

• Soil gas is drawn into the system and delivered to the air compressor by a 5- to 10-horsepower positive displacement blower.
• Entrained liquids are separated at the water knockout tank. Separated liquids are securely drummed and transported off-site or treated with GAC and discharged to the sewer or storm drain in accordance with all local and state regulatory requirements.
• Process air is compressed to approximately 150 pound per square inch (psi) by the compressor .
• Water vapor is removed from the process stream at the air-to-air heat exchangers as it is cooled to approximately 40° F temperature
• The vapor stream is further cooled to approximately -40° F in the refrigerated heat exchangers, where the majority of the chemical constituents are condensed and separated from the vapor stream.
• The vapor stream is then sent to the regenerative adsorber, which removes any residual chemical constituents and water vapor and directs it back to the inlet stream.

System effluent vapor stream [<10 parts per million by volume (PPMV)] is finally polished utilizing granular activated carbon (GAC) prior to discharge to atmosphere

New or custom modified systems can be manufactured in 6-8 weeks.
Click image for a larger view	Click image for a larger view
Blower, compressor and after cooler	Trailer housing the regenerative adsorber unit adjacent to blower / compressor skid.
Soil Vapor Extraction Process Flow Diagram               click here to view larger image (pdf)

We currently offer 100 SCFM pilot-test units, and 200, 300 and 500 SCFM systems.