@proceedings {3953,
	title = {Study on the effect of thermal pre-treatments in the thermophilic anaerobic digestion of a potato peel waste},
	journal = {Proceedings of the International Anaerobic Digestion Symposium within the BioGasWorld 2013},
	year = {2013},
	pages = {138-146},
	publisher = {German Society for Sustainable Biogas and Bioenergy Utilisation},
	address = {Berlin, Germany},
	abstract = {<p>This work aimed to study the effect of different pre-treatments applied to a potato peel residue, in a thermophilic Anaerobic Digestion (AD) process. All samples were subjected to a mechanical pre-treatment through milling to a particle size below 2 mm. The thermal pre-treatments applied consisted of autoclaving the residue at a gauge pressure of 1.2 bar, under a temperature of 122{\textdegree}C, and for 20, 35 and 55 minutes: assays E122.20, E122.35 and E122.55, respectively. The control assay was performed on a ground residue, which was not submitted to any thermal pre-treatment. All pre-treated residues were subjected to an AD process in a CSTR reactor at 49{\textpm}1{\textdegree}C. The experimental data showed that the highest methane percentages were very similar (about 92\% v/v) for all samples submitted to the thermal pre-treatments. For the control assay, the highest percentage of methane was 87.9\% (v/v). The highest biogas yields were recorded in the trial E122.35 (646{\textpm}50 cm3.g-1 CODremoved), against only 250{\textpm}20 cm3.g-1 CODremoved for the control assay. The highest biogas yields for VSremoved were attained in the assays E122.55 and E122.35, with values of 646{\textpm}48 cm3.g-1 VSremoved and 634{\textpm}59 cm3.g-1 VSremoved, respectively. Globally, the yields registered for the assay E122.35 were similar to those determined in the assay E122.55. Due to the lower energy consumption during the pre-treatment performed in the assay E122.35, this was considered to be the most suitable pre-treatment for this type of residue.</p>
},
	attachments = {https://docentes.fct.unl.pt/sites/default/files/ncsn/files/biogas_world_2013_santos_et_al_2013.pdf},
	author = {Susana Santos and D{\'e}bora Azeitona and Lapa, Nuno and Jo{\~a}o Morais and Helena Lopes and Benilde Mendes}
}
