Oxy Vac^SM

Definition

• The injection of oxidants to oxidize contaminants in the subsurface and break down their chemical composition.
• The more volatile byproducts from the oxidation reactions are captured by a vacuum extraction system that is designed to recover these byproducts.

Application

• Typical vadose zone soil permeability range of 1 to >10,000 millidarcies (equivalent of 10E-5 to 10E-1 cm/s hydraulic conductivity).
• Semi-volatile and non-volatile contaminants in the unsaturated and saturated zone.
• DNAPL pools in the saturated zone.

Unique Characteristics

• Breaks down contaminant compounds by oxidation, ultimately mineralizing the compound with complete oxidation.
• The exothermic oxidation reaction heats the subsurface soil matrix.
• May also increase biodegradation activity by the addition of electron acceptors.

Case Studies

• Tyson's Superfund Site, King of Prussia, PA
• Manufacturing Facility, Salt Lake City, UT