Process and apparatus for the continuous anaerobic decomposition

Details Process and apparatus for the continuous anaerobic decomposition Process and apparatus for the continuous anaerobic decomposition

1983-12-19

1985-07-30

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

201614, 201617, 201 961, 201150, 201196, C02F 328

Patent

active

045320420

ABSTRACT:
Process and apparatus for the continuous anaerobic decomposition of organic compounds in an aqueous liquid is effected, in accordance with the invention, in a fixed-bed reactor by microorganisms, which are grown upon a support with the admixture of recycled reactor discharge in such an amount that practically uniform conditions exist throughout the reactor. The volume/time yield can be increased to a surprisingly large extent by means of the process if, after breeding sufficient adhering microorganisms with a residence time equal to or greater than 50% of the doubling time, an iterative reduction is efected in the residence time with the onset of equilibrium conditions at each stage until the volume/time yield can be increased no further.

REFERENCES:
patent: 4284508 (1981-08-01), Jewell
patent: 4349435 (1982-09-01), Ochiai
patent: 4351729 (1982-09-01), Witt
patent: 4352738 (1982-10-01), Blay et al.
"Reinigung organisch hochverschmutzter Abwasser mit dem anaeroben Belebunerfahren am Beispiel von Abwassern der Nahrungsmittelherstellung", Von der Fakultat fur Bauwesen der Universitat Hannover zur Erlangung des Grades, Doktor-Ingenieur, genehmigte Dissertation, Dipl-Ing. Helmut Sixt, 1979, pp. 254-259.

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