Arotingo Guandinango, H.P.; Espín Valladares, R.C.; Núñez Pérez, J.; Lara Fiallos, M.V.; Pereda Reyes, I.; Pais-Chanfrau, J.M. Modelisation of the Biomethane Accumulation in Anaerobic Co-Digestion of Whey and Sugarcane Molasse Mixtures. Fermentation2023, 9, 834.
Arotingo Guandinango, H.P.; Espín Valladares, R.C.; Núñez Pérez, J.; Lara Fiallos, M.V.; Pereda Reyes, I.; Pais-Chanfrau, J.M. Modelisation of the Biomethane Accumulation in Anaerobic Co-Digestion of Whey and Sugarcane Molasse Mixtures. Fermentation 2023, 9, 834.
Arotingo Guandinango, H.P.; Espín Valladares, R.C.; Núñez Pérez, J.; Lara Fiallos, M.V.; Pereda Reyes, I.; Pais-Chanfrau, J.M. Modelisation of the Biomethane Accumulation in Anaerobic Co-Digestion of Whey and Sugarcane Molasse Mixtures. Fermentation2023, 9, 834.
Arotingo Guandinango, H.P.; Espín Valladares, R.C.; Núñez Pérez, J.; Lara Fiallos, M.V.; Pereda Reyes, I.; Pais-Chanfrau, J.M. Modelisation of the Biomethane Accumulation in Anaerobic Co-Digestion of Whey and Sugarcane Molasse Mixtures. Fermentation 2023, 9, 834.
Abstract
The biomethane accumulation of several combinations of whey and sugarcane molasses, inoculated with sludge from a treatment facility of one of the dairy enterprises of Imbabura, was assessed in the current experiment at a concentration of 0.5 g/l COD. The whey: molasses (W: M) ratios for each treatment were 0:100, 25:75, 50:50, 75:25, and 100:0, with a constant temperature of 37°C and an initial pH adjustment of 7.5. Half a litre of total mixes was used for each treatment in duplicate. Six kinetic models were evaluated to account biomethane accumulation in anaerobic co-digestion processes in batch of whey and sugarcane molasses. Five of these have been tested by other researchers, and one was developed by modifying a first-order model to consider changes in the biomethane accumulation profile. This proposed model, along with the modified two-phase Gompertz model, resulted in the ones that were best able to adjust the experimental data, obtaining in all cases an R² ≥ 0.949, indicating the accuracy of both models. In addition, the proposed here model has five parameters, one less than the modified two-phase Gompertz model, making it more straightforward and robust.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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