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A kinetic model for anaerobic digestion of biological sludge
Author(s) -
Pavlostathis Spyros G.,
Gossett James M.
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.260281010
Subject(s) - anaerobic digestion , effluent , hydrolysis , lysis , pulp and paper industry , biomass (ecology) , chemistry , activated sludge , rendering (computer graphics) , anaerobic exercise , bioreactor , environmental science , waste management , biochemical engineering , environmental chemistry , sewage treatment , biology , environmental engineering , ecology , methane , biochemistry , computer science , engineering , physiology , computer graphics (images) , organic chemistry
The principal objective of this study was the development and evaluation of a comprehensive kinetic model capable of predicting digester performance when fed biological sludge, preliminary conversion mechanisms such as cell death, lysis, and hydrolysis responsible for rendering viable biological sludge organisms to available substrate were studied in depth. The results of this study indicate that hydrolysis of the dead, particulate biomass—primarily consisting of protein—is the slowest step, and therefore kinetically controls the overall process of anaerobic digestion of biological sludge. A kinetic model was developed which could accurately describe digester performance and predict effluent quality.