|
Enhanced aerobic bioremediation is the practice of adding oxygen (an electron acceptor) to groundwater and/or soil to increase the number and vitality of indigenous microorganisms performing biodegradation.
Enhanced aerobic bioremediation technologies such as Oxygen Release Compound (ORC®) and ORC Advaned® are used to accelerate naturally occurring in-situ bioremediation of petroleum hydrocarbons, and certain fuel oxygenates such as methyl tertiary-butyl ether (MTBE), by indigenous microorganisms in the subsurface. The use of these convenient and easy to apply solid oxygen compounds provides a controlled-release, supplemental source of oxygen to the subsurface which Is made available to aerobic, hydrocarbon-degrading bacteria. Oxygen is considered by many to be the primary growth-limiting factor for hydrocarbon degrading bacteria, however it is normally depleted in zones that have been contaminated with hydrocarbons. The stoichiometric ratio of oxygen per hydrocarbon is 3 moles of oxygen per 1 mole of hydrocarbons. By deploying technologies such as ORC and ORC Advanced, remediation practitioners can increase the rates of petroleum hydrocarbon biodegradation at least 10 to 100 times over naturally-occurring, non-enhanced rates.
Letting Nature work.
|