U.S. EPA Contaminated Site Cleanup Information (CLU-IN)


U.S. Environmental Protection Agency
U.S. EPA Technology Innovation and Field Services Division
Former St. Croix Alumina Plant, St. Croix, VI
RCRA
 
 
IMAGE GALLERY

Click on images
below for details

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Wind Power
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Wind Turbine Compressor
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385-W Solar Array
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Oil Recovery
System

Cleanup Objectives: Recover hydrocarbons from ground water at RCRA site

Green 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 367,000 gallons of free-product oil (approximately 30% of the volume originally estimated to be in place) by the end of June 2010
  • Integrated multiple renewable-energy technologies and resources over time to meet increasing portions of the recovery system's energy demand
  • Avoids air emissions associated with consumption of grid electricity during petroleum recovery
  • Provides for beneficial use of recovered material by local industry
  • Avoids off-site transfer and disposal of petroleum product, along with associated air emission

Property End Use: Industrial operations

More detail is available about this site in the May 2008 issue of EPA's Technology News and Trends newsletter.

Point of Contact: Tim Gordon, U.S. EPA Region 2

Update: February 2008

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