Successful bioremediation of petroleum contamination through aerobic microbial respiration depends on a number of factors including the presence of appropriate microbes, nutrients, electron donors and terminal electron acceptors. In the aerobic metabolism of petroleum contaminants, oxygen acts as a terminal electron acceptor and petroleum contaminants act as electron donors, which are then oxidized. Often, the limiting factor in aerobic bioremediation of petroleum contaminants is oxygen.

PermeOx® Plus provides oxygen through a reaction of calcium peroxide and water:

CaO2 + 2H2O ➺ Ca(OH)2 + H2O2
2H2O2 ➺ O2 + 2H2O

PermeOx Plus is a timed release form of calcium peroxide that releases sufficient oxygen over an extended time period to enhance the biodegradation of petroleum hydrocarbons and other biodegradable contaminants in soil and groundwater. It is well documented that the release of oxygen in the subsurface environment enhances the biodegradation of petroleum hydrocarbons.

Based on extensive laboratory studies, PermeOx Plus releases oxygen at higher rates of release than other solid peroxygen products and therefore provides a useful and cost-effective mechanism for enhancing the aerobic bioremediation of petroleum contaminants.

Key Benefits

There are many technical and commercial benefits to using this improved time release oxygen formulation. PermeOx® Plus was specifically designed to enable more creative and successful use of the product in environmental applications, as compared to other solid peroxygen compounds. Several of these benefits are listed below:

• Cost-effective form of treatment and/or polishing step
• Contains 18% active oxygen vs 10% for magnesium based products
• Utilizes natural processes
• Enhances microbial growth/bioremediation processes
• Minimum site disruption
• Effective at achieving compliance end points
• Slurry remains workable for injections longer and does not set up like concrete
• Larger particle size reduces dust hazards and material handling issues in the field
• Increased solubility maintains formation permeability
• Can be applied in dilute form through existing monitoring wells without damage to wells
• It releases all of its available oxygen as opposed to locking up

   PermeOx® Plus Brochure (0,57 MB)

   PermeOx® Plus Datasheet (16,18 KB)