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DEMONSTRATION BULLETIN: SUBSURFACE VOLATILIZATION AND VENTILATION SYSTEM - BROWN & ROOT ENVIRONMENTAL
Citation:
King, J. DEMONSTRATION BULLETIN: SUBSURFACE VOLATILIZATION AND VENTILATION SYSTEM - BROWN & ROOT ENVIRONMENTAL. EPA/540/MR-94/529, 1994.
Impact/Purpose:
information
Description:
The Subsurface Volatilization and Ventilation System (SVVS*) is an in-situ vacuum extraction/air sparging and bioremediation technology for the treatment of subsurface organic contamination in soil and groundwater. The technology, developed by Billings and Associates, Inc., and operated under a licensing agreement by Brown & Root Environmental (formerly Halliburton NUS Corporation), utilizes vapor extraction and biostimulation to remove and destroy organic contaminants from the subsurface. Vapor extraction removes the easily strippable volatile components from the soil and/or groundwater. This re- moval mechanism is dominant during the early phases of the remediation. Biostimulation processes dominate the later phases of the remediation and are used to accelerate the in-situ destruction of organic compounds in the soil and groundwater. The developer claims that remediation using the combination of vapor extraction and biostimulation is more rapid than the use of biostimulation alone, while generating lower quantities of volatile organics than vapor extraction technologies. In addition, SVVS® can remediate contaminants that would not be remediated by vapor extraction alone (chemicals with lower volatilities and/or chemicals that are tightly sorbed). These benefits translate into lower costs and faster remediations.