Plant husbandry – Algae culture
Patent
1980-02-04
1982-04-13
Bagwill, Robert E.
Plant husbandry
Algae culture
A01G 700
Patent
active
043240674
ABSTRACT:
The present invention relates to systems, processes and apparatus for harvesting microorganisms, especially free swimming unicellular algae, such as algal cells of the Dunaliella variety.
In accordance with one aspect of the invention, a material mass made up of fibrous or inert inorganic material in interposed between the liquid containing reservoir in which the algal cells are disposed for multiplication by cell division and the cell harvest zone to provide a preferred travel path for the migration of the cells from the reservoir to the harvest zone. This mass not only enhances cell travel from the reservoir to the harvest zone, but also acts as a cell collision mass to enhance cell division, thereby to decrease the time lag of cell division build-up in the early stages of generating an algal cell culture in the reservoir. Means are also provided for transferring the concentrated algal cell culture from the harvest zone to a collection zone and for recycling at least a portion of the concentrated culture back to the growth reservoir.
REFERENCES:
patent: 3468057 (1969-09-01), Buisson et al.
patent: 3577678 (1971-05-01), Burton
patent: 3598726 (1971-08-01), Welch
patent: 3780471 (1973-12-01), Ort
patent: 4055491 (1977-10-01), Porath-Furedi
patent: 4115949 (1978-09-01), Avron et al.
patent: 4199895 (1980-04-01), Avron et al.
Agal cultures . . . , Fogg, Univ. Wisconsin Press, 2nd ed., circa Mar. 1976.
Science, vol. 206, Nov. 30, 1979, p. 1053.
Solar bioconversion . . . , Williams et al., in Biotechnology In Energy Production & Conservation, J. Wiley & Sons, N.Y., 1979, pp. 115-130.
Bagwill Robert E.
The University of Arizona Foundation
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