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Chilean Evaporation Ponds


                                             • Presented by Tom LeTourneau
                   ...
Project Site (Solar de Atacama, Chile)


• El. 7,000 feet
• Underground
  Brine Reservoirs
• Driest Desert –
  rarely clou...
Project Details
   • Lined        ponds to hold pumped brine
   • Ponds – 10 ft deep, 3000 ft x 1000 ft
   • 20 to 30 mil ...
Project Details
   • Wells        drilled to pump brine into ponds
   • Water evaporates from brine leaving mineral rich s...
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 5 of 11
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 6 of 11
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 7 of 11
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 8 of 11
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 9 of 11
FGI
Canadian General Tower   © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved   Slide 10 of 11
Project Details

  Largest PVC geomembrane installation in world
•
• More than 16 million ft2 of PVC geomembrane installed...
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Chilean Evaporation Ponds Project

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Chilean Evaporation Ponds is presented by Tom LeTourneau Canadian General Tower

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Chilean Evaporation Ponds Project

  1. 1. Chilean Evaporation Ponds • Presented by Tom LeTourneau • Canadian General Tower FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 1 of 11
  2. 2. Project Site (Solar de Atacama, Chile) • El. 7,000 feet • Underground Brine Reservoirs • Driest Desert – rarely cloudy & windy • Great evaporation FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 2 of 11
  3. 3. Project Details • Lined ponds to hold pumped brine • Ponds – 10 ft deep, 3000 ft x 1000 ft • 20 to 30 mil PVC Geomembrane Panels • Panel Size = 1000 ft x 50 ft to reduce field seaming • Panels weigh 3 tons (6,600 lbs) • 325,000 ft2 of PVC deployed/day • Panels seamed using solvents & wedge-welders • Seams are tested destructively and/or non-destructively • Entire liner checked by leak location techniques • PVC placed on compacted clay subgrade FGI • PVC protected with finely crushed salt layer Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 3 of 11
  4. 4. Project Details • Wells drilled to pump brine into ponds • Water evaporates from brine leaving mineral rich salt • Salt is excavated from ponds and salts separated • Potassium (fertilizer) • Lithium (batteries – largest source) • Boric Acid • Liners must function otherwise brine is lost!! • One year for evaporation yields 3 feet of salt FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 4 of 11
  5. 5. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 5 of 11
  6. 6. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 6 of 11
  7. 7. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 7 of 11
  8. 8. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 8 of 11
  9. 9. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 9 of 11
  10. 10. FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 10 of 11
  11. 11. Project Details Largest PVC geomembrane installation in world • • More than 16 million ft2 of PVC geomembrane installed since 1996 • PVC geomembrane performing well in harsh environment FGI Canadian General Tower © 2005 FGI, University of Illinois at Urbana-Champaign, All Rights Reserved Slide 11 of 11

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