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- W1979202311 abstract "An experiment was carried out to determine the characteristics of an operations system that can support fast cultivation of algae at high densities in the weightlessness of space. The experiment was conducted in glass bioreactor tanks, in which light was supplied by radiator rods connected to optical fiber cables. The illumination areas of the tanks were 2600 cm 2 , 6000 cm 2 , and 9200 cm 2 per liter of solution. The characteristics of O 2 -CO 2 gas exchange, concentration and separation of chlorella in the growth medium, dialysis of ionic salts in the growth medium, etc. were examined. Chlorella ellipsoidea was used in the experiment, yielding the following results: • (1)By increasing the ratio of illumination area to volume, growth rates of up to approximately 0.6 g/L·h could be obtained in a highly concentrated solution (one that contains 20 g/L or more of algae). • (2)The most suitable proportions of carbon dioxide and oxygen gases for growing algae quickly at high concentrations were found to be 10% CO 2 and 10% O 2 (by volume). • (3)There was a high optimum concentration for fast cultivation, and the data obtained resembled the theoretical curve postulated by P. Behrens et al. • (4)It was possible to exchange carbon dioxide and oxygen using gas-permeable membrane modules. • (5)It was possible to separare the chlorella from the growth medium and recycle the medium." @default.
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- W1979202311 date "1989-01-01" @default.
- W1979202311 modified "2023-10-18" @default.
- W1979202311 title "Design for a bioreactor with sunlight supply and operations systems for use in the space environment" @default.
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- W1979202311 doi "https://doi.org/10.1016/0273-1177(89)90041-0" @default.
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