Presentación Algas

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Presentación Algas

  1. 1. Biofuels from Algae? In Virginia?
  2. 2. The “Ideal” Biofuel would:  Produce the most energy on the least land  Require the least added inputs  i.e. energy, water, nutrients, etc.  Not increase food prices  Not increase water / air pollution  Be cost competitive with petro-fuels
  3. 3. Algae “Word Association”  Green  Slimy  Nuisance  Resource?
  4. 4. Algae “A New Perspective”  Excellent Biofuel  Fastest growing biomass  Less land required  Several biofuel options  Biodiesel (high oil content)  Butanol (direct gasoline replacement)  Hydrogen  Ethanol  Bio-gas  Significant Environmental Benefits  Actually cleans the water it uses  Removes nutrients & other pollutants  Adds oxygen  Consumes CO2
  5. 5. Energy Output Potential Corn Ethanol Algae Biodiesel  200 – 400 gal./ac./yr.  2,000 – 5,000 gal/ac./yr.  84,000 BTU/gal.  119,000 BTU / gal.  17M – 34M BTU/ac./yr.  200M – 600M BTU/ac./yr.
  6. 6. Gallons of Oil per acre  Soybeans 48  Safflower 83  Sunflower 102  Jatropha 175  Rapeseed 127  Oil Palm 635  Microalgae* 1,850  Microalgae** 5,000 – 15,000 *Microalgae with lower oil content **Microalgae with higher oil content Source: Biodiesel From Microalgae - Yusuf Chisti (2007)
  7. 7. % of agricultural land required to fuel U.S. transportation  Soybeans 650%  Canola 240%  Jatropha 154%  Coconut 108%  Oil Palm 50%  Microalgae 2-5% Source: Biodiesel From Microalgae - Yusuf Chisti (2007)
  8. 8. Other “Algae” Advantages  Can be grown on non-agricultural land  Uses less water than conventional crops  Can use brine or sea water  Produces other useful by-products  Fertilizer  Animal feed
  9. 9. Can “couple” with other Enterprises  Industrial & Municipal Wastewater  Alternative treatment processes  Nutrient assimilation  Power Plants  CO2 source (carbon credits)  Agriculture  Recycle wastewater and nutrients  Algae Farming?
  10. 10. Algae Bio-diesel Cost Estimates  $1.40 - $4.40 / gallon  $60 - $120 / gallon per barrel of oil (Equivalent)
  11. 11. Virginia “Algae Attributes”  Good climate  Sunshine & moderate temps  Lots of nutrient enriched water  WWTP’s  Tidal Rivers & Chesapeake Bay  Lots of power plants (CO2 sources)  Lots of potential biodiesel customers  Military, truckers, airlines, home heating
  12. 12. So What’s Happening?
  13. 13. ODU Algae Bio-diesel Research (HRSD - Virginia Initiative Plant)  Identify “oil rich” native algal species  Optimize algae production using wastewater  Convert algae to bio-diesel economically
  14. 14. Hopewell Regional WWTP (Pilot Project)  Scale up ODU algae research  Nutrient Removal Savings  Partnering with an “Algae Farmer”
  15. 15. Virginia’s 1st Algae Farmer (Jes Sprouse) Prince George County, Virginia
  16. 16. Algal Turf Scrubbers (Dr. Walter Adey – Smithsonian)
  17. 17. Susquehanna River Proposal (3,000 acres of Algal Turf Scrubbers) Restore Upper Chesapeake Bay???  Remove 7.5 million lbs. N / yr.  Remove 3 million lbs. P / yr.  Add 300 million lbs. of O2 / yr.  Produce 10 million gal. of biofuel  Produce 2.3 million lbs. of hydrogen  Cost about $120 million / yr.
  18. 18. DEQ Algae Development Strategies  Allocate some WQIF money  Innovative Treatment Technology  Hopewell WWTF Project  Evaluate “Nutrient Assimilation Credits”  Ches. Bay Nutrient Trading Program
  19. 19. Questions?

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