Abstract: MATH/CHEM/COMP 2002, Dubrovnik, June 24-29, 2002
MATHEMATICAL MODELING OF ANAEROBIC BATCH FERMENTATION OF CATTLE MANURE
AT MESOPHILIC TEMPERATURE
Vahida Selimbasic, Ivan Petric, and Zehrudin Osmanovic
Faculty of Technology Tuzla, Univerzitetska 8, 75000 Tuzla, Bosnia and Herzegovina
In this paper, the anaerobic fermentation of
high strength organic waste in batch reactors has been investigated. A
mathematical model describing the degradation of cattle manure has been
developed. Two different ratios of the cattle manure to water (the substrate
dilution of 22.11% and 5% dry matter) with defined incubation times were investigated.
Mesophilic anaerobic sludge was used as inoculum. Cattle manure was digested
at 35°C for up to 50 days in air-tight 120 mL glass bottles. Three
repetitions per both ratio of cattle waste were used. First order rate
equations were used for initial hydrolysis of manure.
The model has been applied for the simulation of anaerobic mesophilic fermentation in batch reactors and results compare favourably with experimental data.
words: mathematical modelling, batch, anaerobic fermentation, mesophilic,
cattle manure, simulation