Device for the determination of aerobic biodegradability

Details Device for the determination of aerobic biodegradability Device for the determination of aerobic biodegradability

1993-02-11

1994-06-07

Warden, Robert J.

Chemistry: molecular biology and microbiology

Apparatus

Bioreactor

435 3, 435 29, 435289, 435313, 435807, C12M 134

Patent

active

053189094

ABSTRACT:
A device for determining the aerobic biodegradability in a composting installation of at least one product includes at least two reactors, a temperature device for maintaining the reactors at a temperature above the ambient temperature, a device for passing gas which contains oxygen through the reactors, a device for separately collecting outflowing gas from each of the reactors, a measuring/calculating device for determining the amount of CO.sub.2 in the outflowing gas of each reactor and a calculating device for determining the aerobic biodegradability of the at least one product based on the measured/calculated amount of CO.sub.2 in the outflowing gas of each reactor.

REFERENCES:
patent: 3591458 (1971-07-01), Hardy
patent: 3684702 (1972-08-01), Hartman
patent: 3740320 (1973-06-01), Arthur
patent: 3948731 (1976-04-01), Weaver
patent: 4062770 (1977-12-01), Kneer
patent: 4314029 (1982-02-01), Ohtake et al.
patent: 4650766 (1987-03-01), Harm et al.
patent: 4684468 (1987-08-01), De Baere
patent: 5126238 (1992-06-01), Gebhard et al.
Nakasaki, et al, "Change in Microbial Numbers During Thermophilic Composting Of Sewage Sludge With Reference to CO.sub.2 Evolution Rate", App. And Env. Microbio., 49(1):37-41, (1985).

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