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U.S. Department of Energy
Office of Scientific and Technical Information

Large-scale production of algae

Technical Report ·
OSTI ID:5398149
Pilot plant studies in a one-million liter plant at Richmond, California indicate that the cost of algae in projected large plants would be from three to ten cents per pound--about 10% of the cost projections made ten years ago for algae in large-scale culture. Reductions in predicted costs, have resulted from the engineering development of a simple growth system which consists simply of a shallow open pond mixed by means of large conventional propeller pumps. Based on results obtained with the Richmond pilot plant, it can be demonstrated that algal culture should be competitive with conventional agriculture for use of land, water, energy, capital, and human resources. This conclusion is based on the evidence that algae culture requires only one-tenth as much land, one-fifth as much water, three fourths as much power, one-fifteenth as much labor, and one-fourth as much capital as is required by conventional agriculture to produce an equal amount of protein. Based upon current costs of protein and attainable photosynthetic efficiencies, large-scale algal culture should soon contribute significantly to the world's protein resources at a cost below any competitive source of protein.
Research Organization:
California Univ., Berkeley (USA)
OSTI ID:
5398149
Report Number(s):
PB-296411
Country of Publication:
United States
Language:
English