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Abstract

Thermophilic methane digestion was investigated on its possible future applications. Basal information on kinetic parameters was gathered and inhibition of thermophilic processes by ammonia was studied. Start-up procedures for thermophilic processes are presented, and the performance of upflow anaerobic sludge blanket reactors was tested with different synthetic substrates. Granulation of the sludge was not observed with volatile fatty acids as the substrates, but it was achieved very rapidly using sugars as substrates. The granular sludge obtained proved to be very efficient in the treatment of various substrates. Very high methane generation rates were achieved with vinasse, the wastewater of alcohol distilleries, as substrate. Preliminary results with two-stage methane digestion processes were very promising. It is concluded that thermophilic anaerobic digestion is very useful in the treatment of and methane generation from non-toxic waste waters which are discharged at high temperatures.

Additional information

Authors: WIEGANT W M, AGRICULTURAL UNIVERSITY, WAGENINGEN (THE NETHERLANDS);LETTINGA G AGRICULTURAL UNIVERSITY, WAGENINGEN (THE NETHERLANDS), AGRICULTURAL UNIVERSITY, WAGENINGEN (THE NETHERLANDS)
Bibliographic Reference: EUR 9941 EN (1985) MF, 48 P., BFR 150, BLOW-UP COPY 240, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989124065100 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en