What is MEOR?

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MEOR is microbial enhanced oil recovery.  Some microbes produce biosurfactants that increase the water-solubility of oil.  The biosurfactants’ benefit microbes by making it easier for the microbes to metabolize oil.  Additionally, the biosurfactants can strip oil from rock and soil surfaces to improve environmental remediation by extraction, air stripping, or sparging. The Pseudomonas sp. in […]

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Naphthalene Bioremediation With Petrox Microbes

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Petrox Micorbes Remove Naphthalene and other SVOCs Naphthalene is often a recalcitrant petroleum compound that keeps sites from clean closure.  This resistance to remediation is due to naphthalene’s relative high adsorption and low solubility rates.  Naphthalene has an aqueous solubility of 3.1E1 mg/l compared to benzene at  1.75E3 mg/l .  Naphthalene has an affinity of […]

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In Situ TPH Bioremediation with Petrox

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With Petrox microbes, in situ TPH bioremediation reduced the concentration of petroleum in soil at a former gas station from 9,500 mg/kg to 52 mg/kg. The impacted soil was at more than 20 feet deep.  Injection of calcium peroxide provided the oxygen needed for metabolism of the petroleum by Petrox microbes.  The post treatment sampling […]

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In-situ Bioremediation of BTEX, TPH and PAHs in Groundwater

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Petrox bioremediation reduced  contamination by more than 99% in less than a year at a Florida gas station. After three underground storage tanks were removed from the location of a convenience store, investigation showed that petroleum contamination was present in small area near the former dispenser island.  The vadose-zone contaminated soil was excavation and disposed […]

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