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Integrated system for the conversion of solar energy with sewage grown microalgae. Final report, October 1, 1976-September 30, 1977

Technical Report ·
DOI:https://doi.org/10.2172/5868413· OSTI ID:5868413
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An integrated system for wastewater treatment and microalgae biomass production for conversion to fuels is proposed. Progress in the development of low cast biomass production system using sewage as a source of nutrients and water is reported. The theory of species control through selective biomass recycle is refined and demonstrated in laboratory experiments. The outdoor pond system was further developed and microstrainer effectiveness tested in multivariant experiments. The outdoor pond operations consisted of a series of experiments to test the effects of detention time, recycling and mixing on algae culture harvestability, and productivity. Batch and continuous secondary growth ponds were operated to result in low ammonia pond effluents, after algae settling or microstraining. These effluents were used to grow nitrogen-fixing blue-green algae. The 0.25 hectare pond was operated to determine whether small scale experimental results can be extrapolated.
Research Organization:
California Univ., Berkeley (USA). Sanitary Engineering Research Lab.
OSTI ID:
5868413
Report Number(s):
SAN-0034-T2
Country of Publication:
United States
Language:
English

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Related Subjects

09 BIOMASS FUELS
090122 -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
ALGAE
ANAEROBIC DIGESTION
BIOCONVERSION
BIOMASS
BIOMASS PLANTATIONS
CONVERSION
CULTIVATION TECHNIQUES
DIGESTION
ENERGY CONVERSION
ENERGY SOURCES
FEASIBILITY STUDIES
FUELS
HARVESTING
MANAGEMENT
NUTRIENTS
PLANTS
PONDS
PROCESSING
PRODUCTIVITY
RENEWABLE ENERGY SOURCES
SEWAGE
SOLAR ENERGY CONVERSION
TIME DEPENDENCE
WASTE MANAGEMENT
WASTE PROCESSING
WASTES