Bioremediation


ARS' expertise in subsurface atomized injection techniques has led to numerous projects involving the injection of a bioinnoculum, engineered micro-organisms, emulsions, oxygen releasing compound (ORC), lactate and sugars and/or nutrient solution which enhance or promote bioremediation efforts for site cleanup. Using the patented liquid atomization injection process (Patent # 5,560,737), a stream of bioinnoculum is fed into the injection gas stream thereby becoming atomized and into the formation surrounding the injection point. The advantages of applying the substrate in this manner include:
  • more uniform distribution within the subsurface
  • increased radius injection influence
  • reduction of bio-fouling locally around the injection wells
  • increased volume of substrate that can be delivered into the subsurface as the silt and clay layers existing within the formation will become fractured


Coupled with Pneumatic Fracturing, ARS' atomized bioinjection technique may also enhance greater groundwater flow in the affected area, resulting in the ability to create more favorable growth conditions through the injection of nutrients and biosubstrates. Fracturing also permits this technology to be applied in formations with a more competent geology, such as fractured bedrock. Typical injection radii of influence range up to 25 feet in unconsolidated material and 45 feet in consolidated material. ARS' commercial equipment can inject liquids up to 50 gallons per minute.