Actions for Removal of CO{sub 2} from flue gases by algae. Technical report, December 1, 1992--February 28, 1993 [electronic resource].

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Removal of CO{sub 2} from flue gases by algae. Technical report, December 1, 1992--February 28, 1993 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
19 pages : digital, PDF file
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The studies reported here confirmed our preliminary observations that Botryococcus braunii can tolerate and grow well in flue gas CO₂ concentrations of 10 to 15%, and produce oil. The highest extracted oil was observed in 10% CO₂ enriched air. Initial pH of the medium at or near 10 pH is favorable to cell growth probably by stimulating the CO₂ solubilization in the medium. This is also indicated in Botryococcus braunii growth and oil formation in NaHCO₃ added medium. The lack of growth in Na₂CO₃ containing media was probably due to high pH. The CaCO₃ precipitation from the CA{sup ++} gelled alginate beads indicate the need for alternative immobilization systems. But the attachment of the Botryococcus braunii cells to the bottom inner surfaces of the photobioreactors may eliminate the need for gel entrapment systems as the immobilization matrices. Attachment of the Botryococcus braunii cells to the bottom inner surfaces of the photobioreactors, rather than remaining in the suspension, reduces the significance of self shadowing and related liquid height (thickness) effect. The capability of Botryococcus braunii to grow in NaHCO₃ solutions is very encouraging toward development of an alkaline scrubbing system for the flue gas followed by removal of the CO₂ from the alkaline solution. In such a system the pH 10 is the currently observed upper limit.
Report Numbers
E 1.99:doe/pc/92521--t6
doe/pc/92521--t6
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
05/01/1993.
"doe/pc/92521--t6"
"DE93013625"
Pradhan, S.; Banerjee, D.; Akin, C.; Maka, A.
Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
Type of Report and Period Covered Note
Quarterly; 01/01/1993 - 03/31/1993
Funding Information
FC22-92PC92521
View MARC record | catkey: 13819427