Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production
One of the anaerobic digestion process products in an agricultural biogas plant is digestate (digested pulp). Large quantities of digestate generated in the process of biogas production all over the world require proper management. Fertilization is the main management of this substrate, so it is ess...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/16/5034 |
| _version_ | 1827685318770294784 |
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| author | Wojciech Czekała |
| author_facet | Wojciech Czekała |
| author_sort | Wojciech Czekała |
| collection | DOAJ |
| description | One of the anaerobic digestion process products in an agricultural biogas plant is digestate (digested pulp). Large quantities of digestate generated in the process of biogas production all over the world require proper management. Fertilization is the main management of this substrate, so it is essential to look for new alternatives. The work aims to determine and discuss the possibilities of using digestate solid fraction (DSF) for pellets as biofuel production. Pellets from DSF alone and pellets with sawdust, grain straw additives were analyzed. The lower heating value (LHV) based on the dry matter for all analyzed pellets ranged from 19,164 kJ∙kg<sup>−1</sup> to 19,879 kJ∙kg<sup>−1</sup>. The ash content was similar for all four samples and ranged from 3.62% to 5.23%. This value is relatively high, which is related to the degree of fermentation in the anaerobic digestion process. The results showed that the DSF substrate after the anaerobic digestion process still has energy potential. Analyzing those results, it seems that DSF can be a highly valuable substrate for solid biofuels production. |
| first_indexed | 2024-03-10T08:51:06Z |
| format | Article |
| id | doaj.art-d006af8da2f7466c9eab1a6eb80980ea |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T08:51:06Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-d006af8da2f7466c9eab1a6eb80980ea2023-11-22T07:31:01ZengMDPI AGEnergies1996-10732021-08-011416503410.3390/en14165034Solid Fraction of Digestate from Biogas Plant as a Material for Pellets ProductionWojciech Czekała0Department of Biosystems Engineering, Poznań University of Life Sciences, Wojska Polskiego 50, 60-627 Poznań, PolandOne of the anaerobic digestion process products in an agricultural biogas plant is digestate (digested pulp). Large quantities of digestate generated in the process of biogas production all over the world require proper management. Fertilization is the main management of this substrate, so it is essential to look for new alternatives. The work aims to determine and discuss the possibilities of using digestate solid fraction (DSF) for pellets as biofuel production. Pellets from DSF alone and pellets with sawdust, grain straw additives were analyzed. The lower heating value (LHV) based on the dry matter for all analyzed pellets ranged from 19,164 kJ∙kg<sup>−1</sup> to 19,879 kJ∙kg<sup>−1</sup>. The ash content was similar for all four samples and ranged from 3.62% to 5.23%. This value is relatively high, which is related to the degree of fermentation in the anaerobic digestion process. The results showed that the DSF substrate after the anaerobic digestion process still has energy potential. Analyzing those results, it seems that DSF can be a highly valuable substrate for solid biofuels production.https://www.mdpi.com/1996-1073/14/16/5034renewable energywaste to energybiomassbiofuelssolid biofuelscircular economy |
| spellingShingle | Wojciech Czekała Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production Energies renewable energy waste to energy biomass biofuels solid biofuels circular economy |
| title | Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production |
| title_full | Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production |
| title_fullStr | Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production |
| title_full_unstemmed | Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production |
| title_short | Solid Fraction of Digestate from Biogas Plant as a Material for Pellets Production |
| title_sort | solid fraction of digestate from biogas plant as a material for pellets production |
| topic | renewable energy waste to energy biomass biofuels solid biofuels circular economy |
| url | https://www.mdpi.com/1996-1073/14/16/5034 |
| work_keys_str_mv | AT wojciechczekała solidfractionofdigestatefrombiogasplantasamaterialforpelletsproduction |