Abstract 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. o (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 quanlity 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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Closed and continuous algae cultivation system for food production and gas exchange in CELSS


    Contributors:

    Published in:

    Publication date :

    1989-01-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Analysis of an algae-based celss

    Holtzapple, Mark T. / Little, Frank E. / Moses, William M. et al. | Elsevier | 1988


    Closed Microbial Ecosystems as Gas Exchange Units in CELSS

    Folsome, Clair E. / Kearns, Elizabeth A. | SAE Technical Papers | 1982


    Food production and gas exchange system using blue-green alga (Spirulina) for CELSS

    Oguchi, Mitsuo / Otsubo, Koji / Nitta, Keiji et al. | Elsevier | 1987


    Analysis of an algae-based CELSS. I - Model development

    Holtzapple, Mark T. / Little, Frank E. / Makela, Merry E. et al. | NTRS | 1989


    Constructions of Photobioreactors for Microalgal Cultivation in CELSS

    Bolsunovsky, Alexander / Zhavoronkov, Vladimir | SAE Technical Papers | 1996