Former St. Croix Alumina Plant, St. Croix, VI
Cleanup Objectives: Recover hydrocarbons from ground water at RCRA site
Greener Remediation Strategy:
Uses a hybrid system employing solar and wind energy
- Began operating four wind-driven turbine compressors in 2002 to drive compressed air into hydraulic skimming pumps
- Began operating three 55-W photovoltaic panels in 2003 to power some recovery wells
- Added three 110-W photovoltaic panels and two wind-driven electric generators in 2006 to power a total of nine submersible total-fluid pumps and the fluid-gathering system
- Recycles recovered petroleum product by transfer to adjacent oil refinery for use as feed stock
Results:
- Recovered 228,000 gallons of free-product oil (approximately 20% of the estimated volume) by the end of 2006
- Avoids off-site transfer and disposal of petroleum product
Property End Use: Industrial operations
Update: February 2008
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