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Zur Reaktionstechnik der anaeroben Fermentation
Author(s) -
Wandrey Christian,
Aivasidis Alexander
Publication year - 1983
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330550705
Subject(s) - biogas , waste management , activated sludge , fermentation , biomass (ecology) , environmental science , anaerobic digestion , anaerobic exercise , pulp and paper industry , chemistry , sewage treatment , engineering , methane , biology , food science , agronomy , physiology , organic chemistry
Abstract Chemical reaction engineering of anaerobic fermentation. Anaerobic fermentation has already been used for more than 50 years for the disposal of excess activated sludge. In recent years, increasing costs and considerable problems encountered in connection with the disposal of activated sludge have encouraged the development of anaerobic processes for the treatment of industrial waste water. Various aspects which have to be taken into account when planning a digester plant are discussed. Reduction in residence time with concomitant increase of biogas production rate is possible by retention of biomass. In this way catabolic performances are obtained comparable to those of aerobic high capacity activated sludge plants. Anaerobic waste treatment appears so far to be a real purification method because the predominant part of the organic pollution (more than 95%) is eliminated under energy saving conditions. The by‐product biogas contributes to the energy self‐sufficiency of the process.