Biogas Potential from the Anaerobic Digestion of Potato Peels: Process Performance and Kinetics Evaluation

Spyridon Achinas, Yu Li, Vasileios Achinas and Gerrit Jan Willem Euverink
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Spyridon Achinas: Faculty of Science and Engineering, University of Groningen, 9747 AG Groningen, The Netherlands
Yu Li: Faculty of Science and Engineering, University of Groningen, 9747 AG Groningen, The Netherlands
Vasileios Achinas: Union of Agricultural Co-operatives of Monofatsi, Heraklion 700 16 Crete, Greece
Gerrit Jan Willem Euverink: Faculty of Science and Engineering, University of Groningen, 9747 AG Groningen, The Netherlands

Energies, 2019, vol. 12, issue 12, 1-16

Abstract: This article intends to promote the usage of potato peels as efficient substrate for the anaerobic digestion process for energy recovery and waste abatement. This study examined the performance of anaerobic digestion of potato peels in different inoculum-to-substrate ratios. In addition, the impact of combined treatment with cow manure and pretreatment of potato peels was examined. It was found that co-digestion of potato peel waste and cow manure yielded up to 237.4 mL CH 4 /g VS added , whereas the maximum methane yield from the mono-digestion of potato peels was 217.8 mL CH 4 /g VS added . Comparing the co-digestion to mono-digestion of potato peels, co-digestion in PPW/CM ratio of 60:40 increased the methane yield by 10%. In addition, grinding and acid hydrolysis applied to potato peels were positively effective in increasing the methane amount reaching 260.3 and 283.4 mL CH 4 /g VS added respectively. Likewise, compared to untreated potato peels, pretreatment led to an elevation of the methane amount by 9% and 17% respectively and alleviated the kinetics of biogas production.

Keywords: anaerobic treatment; biogas; kinetic study; potato peels; cow manure (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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