Enhanced intrinsic bioremediation of hydrocarbons with oxygen release compound (ORC{reg_sign})
- Regenesis Bioremediation Products, San Juan Capistrano, CA (United States)
- Gram, Inc., Albuquerque, NM (United States)
- Tri-S Environmental Corp., Newport Beach, CA (United States)
- Eckenfelder, Inc., Nashville, TN (United States)
ORC{reg_sign} is a unique formulation of magnesium peroxide that releases oxygen at a slow and controlled rate when hydrated. The compound is insoluble and simply releases oxygen while being converted to ordinary magnesium hydroxide which is also insoluble. The rate control feature is a function of the synthesis of the molecular matrix and not achieved by a coating process. ORC is packaged in exchangeable filter socks and is contacted with contaminated groundwater via an array of wells or trenches. A linear array of filter socks generates an oxygenated zone, that can last four months to a year as a function of contaminant flux, and supports the remediating microbial consortia. The objective of this oxygen barrier is plume cut-off, however, any significant reduction of contaminant mass mediated by the oxygen barrier will serve to pull the control point back towards the source; this may play an important role in the implementation of risk reduction strategies. The results presented here support the use of oxygen barrier systems to help manage plume migration and for the control of point source contamination. The most extensively studied oxygen barrier to date, installed at a BTEX contaminated site in Belen, NM, produced a readily observable oxygen barrier and demonstrated an acceptable level of contaminant control during the course of the experiment.
- OSTI ID:
- 398127
- Report Number(s):
- CONF-960393-; TRN: 96:029981
- Resource Relation:
- Conference: 6. annual West Coast conference on contaminated soils and groundwater, Newport Beach, CA (United States), 11-14 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of The sixth West Coast conference on contaminated soils and groundwater: Analysis, fate, environmental and public health effects, and remediation. Part 3; PB: 366 p.
- Country of Publication:
- United States
- Language:
- English
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