Oxygen Enriched Bioremediation Technique Contact us for more information. Oxygen Enriched Bioremediation Technique Oxygen Enriched Bioremediation is a technique for removing biodegradable contaminates from groundwater (EPA-510-F-93-018) that relies on microbes and supplemental oxygen to breakdown organic compounds into non-toxic components. Click here to learn more. View remediation Project Summary Report - 90 day remediation. See what Magazine is Saying About Liberty Engineering's Bioremediation Process! Link to Liberty Full Service Remediation