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Simulation study of anaerobic digestion control
Author(s) -
Torre Alberto Dalla,
Stephanopoulos Gregory
Publication year - 1986
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260280803
Subject(s) - anaerobic digestion , sedimentation , digestion (alchemy) , arithmetic underflow , anaerobic exercise , pulp and paper industry , environmental science , chemistry , process engineering , chromatography , computer science , engineering , biology , methane , sediment , physiology , paleontology , organic chemistry , programming language
Abstract A mixed culture anaerobic digestion model developed previously was applied to the evaluation of several digester control strategies. It was found that pH control by base addition or flow rate manipulation is inadequate. Based on an analysis of digester dynamics, a new control of the total suspended solids concentration at the feed was proposed through the manipulation of the underflow flow rate of the preceeding sedimentation unit. This control was tested in a variety of simulated runs and proved very effective in eliminating most of the usual causes of digester failure.