Remediation Technology Demonstration Project Profiles
In Situ Submerged Oxygen Curtain (iSOC) at a Major Oil Company Facility at an Unknown Location
Last Updated: February 10, 2005 |
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| Site Identifying Information | ||
| Site Name, Location: | Global Technologies, Inc. - Oil Company Facility. Location Unknown, | |
| Cleanup Program: | Not Specified | |
| Entity Responsible for Cleanup: | Not Specified | |
| Site Type: | Oil Company Facility | |
| Government Affiliation: | Non-Federal | |
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| Project Information | ||||||||||||||||||||||
| Project Name: | In Situ Submerged Oxygen Curtain (iSOC) at a Major Oil Company Facility at an Unknown Location | |||||||||||||||||||||
| Project Status: | Complete | |||||||||||||||||||||
| Contaminants Treated: |
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| Media Treated: |
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| Demonstration Technology and Type: | Bioremediation (In Situ) (In Situ Biological) |
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| Geology and Hydrogeology: | Low permeability | |||||||||||||||||||||
| Demonstration Year: | 2004 | |||||||||||||||||||||
| Year of Publication: | 2004 | |||||||||||||||||||||
| Goal of the Demonstration: | To examine the effects of an in situ Submerged Oxygen Curtain (iSOC) system on groundwater contaminated with MTBE, TBA, and BTEX. | |||||||||||||||||||||
| Design and Operations: | The in situ Submerged Oxygen Curtain (iSOC) technology infuses bubble-less oxygen into groundwater via monitoring wells. The proprietary structured polymer used in iSOC provides a large surface area for gas transfer into a 15 inch x 1.62 inch gas-infusion device placed down an existing 2-inch monitoring well. The effective radius of iSOC influence around the monitoring well is typically 10 to 15 feet. During the 6-month demonstration, seven iSOCs were installed into injection wells containing 15 feet of water. These iSOCs maintained concentrations of dissolved oxygen at 60 ppm throughout the water column. | |||||||||||||||||||||
| Performance Data Relevant to Demonstration Goals: | Three months after the iSOC system was installed, the dissolved oxygen barrier that had been established was preventing further migration of gasoline constituents from a source area, and the concentrations of gasoline constituents downgradient of the dissolved oxygen curtain had decreased. After six-months of oxygen-enhanced bioremediation, MTBE decreased by 89%, TBA by 54%, and benzene by 96%. | |||||||||||||||||||||
| Interesting Aspects or Significance of the Demonstration: | Treatment of Recalcitrant Compounds | |||||||||||||||||||||
| Other Interesting Aspects or Significance of the Demonstration: | Unusual or Novel Aspects of Technology Design | |||||||||||||||||||||
| Lessons Learned: | Multilevel sampling and analysis indicated that total organic carbon, expressed as alkalinity, was the best indicator of enhanced bioactivity and oxygen presence. | |||||||||||||||||||||
| Vendor(s) or Consultant(s) Associated with the Demonstration: |
Global Technologies, Inc. InVEntures Technologies, Inc. |
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| Information Source(s) for the Demonstration: |
Mulica, Walter S. & John H. Archibald. Enhanced natural attemuation of MTBE, TBA at a high dissolved iron site using iSOC technology. The 14th Annual West Coast Conference on Soils, Sediments and Water, 15-18 March 2004, San Diego, California. Abstracts. The Association for Environmental Health and Sciences, Amherst, MA. Reported in Technology Innovation News Survey (TINS) - November, 1 - November, 30 2004. http://www.clu-in.org/products/tins/ |
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| Contact Information | ||||||||||||||||||||||
| Point(s) of Contact: |
John Archibald InVentures Technologies, Inc. Oakville, Ontario, Canada Telephone: 905-339-1543 E-mail: john.archibald@inventures.com |
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Walter Mulica (Primary Contact) Global Technologies, Inc. 4808 Westridge Drive Fort Collins, Colorado 80526, United States Telephone: 970-377-1539 Fax: 970-377-3865 E-mail: walter.mulica@isocinfo.com |
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