Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of...
Patent
1981-02-17
1983-08-09
Naff, David M.
Chemistry: molecular biology and microbiology
Micro-organism, per se ; compositions thereof; proces of...
435253, 435254, 435262, 435287, 435316, 435801, C12N 100, C12N 120, C12N 114, C12M 102
Patent
active
043979530
ABSTRACT:
Anaerobic fermentation of substrates with microorganisms is carried out by a process and with an apparatus wherein fermentation is conducted in a container having an upper cylindrical section, a lower conical section, and between the upper and lower sections an apertured bottom wall containing a plurality of openings. During fermentation, the substrate and microorganisms are recirculated from an outlet in the upper cylindrical section to an inlet in the lower conical section and upward in the container through the openings in the apertured bottom wall at sufficient fluid velocity to agitate the substrate and microorganisms therein and prevent settling of the microorganisms in the container. The apertured bottom wall serves as the sole means of agitation, and the use of this process and apparatus enables a significant reduction in the usual fermentation period.
REFERENCES:
patent: 3308037 (1967-03-01), Goos et al.
patent: 3867551 (1975-02-01), Jaegle
patent: 4001090 (1977-01-01), Kalina
patent: 4173516 (1979-11-01), Katinger et al.
patent: 4283497 (1981-08-01), Hirshaut
patent: 4288550 (1981-09-01), Ishida et al.
patent: 4311798 (1982-01-01), Katinger et al.
Guazzone Bruno
Muller Felix
Naff David M.
Process Engineering Company S A
Striker Michael J.
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