Journal
BIORESOURCE TECHNOLOGY
Volume 280, Issue -, Pages 269-276Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.02.033
Keywords
Organic wastes; Biomethane potential; First-order model; Modified Gompertz model; Cone model; Dual pooled first-order kinetic model
Funding
- Kyonggi University's Graduate Research Assistantship
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The main aim of this work was to test various organic wastes, i.e. from a livestock farm, a cattle slaughterhouse and agricultural waste streams, for its ability to produce methane under thermophilic anaerobic digestion (AD) conditions. The stability of the digestion, potential biomethane production and biomethane production rate for each waste were assessed. The highest methane yield (110.83 mL CH4/g VSadded day) was found in the AD of crushed animal carcasses on day 4. The experimental results were analyzed using four kinetic models and it was observed that the Cone model described the biomethane yield as well as the methane production rate of each substrate. The results from this study showed the good potential of model organic wastes to produce biomethane.
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