Remediation Applications

The groundwater Pressurized Remediation Optimizer (gPRO®) High Pressure (HP) system, based on inVentures patented Gas inFusion technology, inFuses higher stabilized concentrations of dissolved gas into water compared to any other technology. For superb bioremediation results, inFusion is accomplished without additives such as hydrogen peroxide, ozone or other agents with potentially harmful side effects.

The gPRO® HP is a simple to use, low energy, low maintenance bioremediation system that will treat a multitude of contaminants aerobically or anaerobically (depending upon the gas infused):

Aerobic

• Hydrocarbons (Oxygen)
• MTBE (Oxygen)
• CAH (VC) (Oxygen)
• CAH (TCE, DCE) (Oxygen and Alkane Gas)
• 1,4 Dioxane (Oxygen andAlkane Gas)
• Ammonia (Oxygen)

Anaerobic

• CAH (Hydrogen)
• Nitrate (Hydrogen)
• Perchlorate (Hydrogen)
• Chrome 6 (Hydrogen or Hydrogen Sulfide)

gPRO® HP can also be utilized with carbon dioxide or ammonia for pH adjustment

Key Benefits

• Lower power consumption and installation costs;
• Use of 1/2 inch or larger diameter wells
• Inject treated discharge water or freshwater
• Simple controls
• Infuses ANY miscible gas into water
• Drastically reduces Pump and Treat times
• Higher dissolved gas levels at ambient pressure
• Increased biological degradation rates
• No gas loss or off gassing or risk of vapour intrusion
• No preferential pathways
• No gas entrapment leading to mounding
• Automatic controls shut down and start up the
• System when necessary
• An oxygen generator (for oxygen applications)
• can be integrated, in place of oxygen cylinders

Operation

The gPRO® HP comprises both production and delivery processes:

The gPRO® HP production process entails delivering gas through the hollow fibres into pressurised water flowing past the fibres modules.  Mass transfer occurs transferring gas into the high pressured water.  For a gas such as oxygen 25-150 mg/l of dissolved oxygen can be produced.  Dissolved gas concentrations can be adjusted to suit to suit specific conditions.  Typically the process is used to infuse gas into abstracted and treated groundwater.

The gPRO® HP then delivers the gas infused water via a distribution header back to groundwater.  Pressure is regulated in order to ensure that the dissolved gas does not come out of solution prior to re-injection.  The gPRO® HP is best suited to enhance existing groundwater pump and treat systems coupled with groundwater re-injection.

   gPRO™ High Pressure (202,69 KB)