Document Detail


Preliminary development and evaluation of an algae-based air regeneration system.
MedLine Citation:
PMID:  11543558     Owner:  NASA     Status:  MEDLINE    
Abstract/OtherAbstract:
The potential of air regeneration system based on the growth of microalgae on the surface of porous ceramic tubes is evaluated. The algae have been maintained in the system for extended periods, up to 360 days. Preliminary measurements of the photosynthetic capacity have been made for Chlorella vulgaris (UTEX 259), Neospongiococcum punctatum (UTEX 786), Stichococcus sp., and Gloeocapsa sp. Under standard test conditions (photosynthetic photon flux approximately 66 micromoles m-2 s-1, initial CO2 concentration approximately 450 micromoles mol-1), mature tubes remove up to 0.2 micromoles of CO2 per tube per minute. The rate of removal increases with photon flux up to at least 225 micromoles m-2 s-1 (PPF); peak rates of 0.35 micromoles of CO2 per tube per minute have been achieved with Chlorella vulgaris. These rates correspond to between 120 and 210 micromoles of CO2 removed per square meter of projected area per minute.
Authors:
J A Nienow
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Life support & biosphere science : international journal of earth space     Volume:  7     ISSN:  1069-9422     ISO Abbreviation:  Life Support Biosph Sci     Publication Date:  2000  
Date Detail:
Created Date:  2000-12-10     Completed Date:  2000-12-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9431217     Medline TA:  Life Support Biosph Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  203-7     Citation Subset:  S    
Affiliation:
Department of Biology, Valdosta State University, Valdosta, GA 31698, USA. jnienow@valdosta.edu
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MeSH Terms
Descriptor/Qualifier:
Air Conditioning*
Algae, Green / growth & development*,  metabolism*,  radiation effects
Carbon Dioxide / pharmacokinetics*
Ceramics
Chlorella
Cyanobacteria / growth & development*,  metabolism*,  radiation effects
Ecological Systems, Closed
Evaluation Studies as Topic
Life Support Systems
Light
Chemical
Reg. No./Substance:
0/Ceramics; 124-38-9/Carbon Dioxide
Investigator
Investigator/Affiliation:
J A Nienow / Valdosta St U, GA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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