Document Detail

Closed and continuous algae cultivation system for food production and gas exchange in CELSS.
MedLine Citation:
PMID:  11537384     Owner:  NASA     Status:  MEDLINE    
In CELSS (Controlled Ecological Life Support System), utilization of photosynthetic algae is an effective means for obtaining food and oxygen at the same time. We have chosen Spirulina, a blue-green alga, and have studied possibilities of algae utilization. We have developed an advanced algae cultivation system, which is able to produce algae continuously in a closed condition. Major features of the new system are as follows. (1) In order to maintain homogeneous culture conditions, the cultivator was designed so as to cause a swirl on medium circulation. (2) Oxygen gas separation and carbon dioxide supply are conducted by a newly designed membrane module. (3) Algae mass and medium are separated by a specially designed harvester. (4) Cultivation conditions, such as pH, temperature, algae growth rate, light intensity and quantity of generated oxygen gas are controlled by a computer system and the data are automatically recorded. This equipment is a primary model for ground experiments in order to obtain some design data for space use. A feasibility of algae cultivation in a closed condition is discussed on the basis of data obtained by use of this new system.
M Oguchi; K Otsubo; K Nitta; A Shimada; S Fujii; T Koyano; K Miki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Advances in space research : the official journal of the Committee on Space Research (COSPAR)     Volume:  9     ISSN:  0273-1177     ISO Abbreviation:  Adv Space Res     Publication Date:  1989  
Date Detail:
Created Date:  2000-04-10     Completed Date:  2000-04-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9878935     Medline TA:  Adv Space Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  169-77     Citation Subset:  S    
Space Technology Research Group, National Aerospace Laboratory, Tokyo, Japan.
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MeSH Terms
Carbon Dioxide
Computer Systems
Culture Media
Cyanobacteria / growth & development*,  metabolism*
Ecological Systems, Closed*
Equipment Design
Evaluation Studies as Topic
Life Support Systems / instrumentation*
Systems Integration
Reg. No./Substance:
0/Culture Media; 124-38-9/Carbon Dioxide; 7782-44-7/Oxygen

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

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