Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture
The utilization of municipal waste and sewage sludge as a source of energy is technically very difficult due to high variability of their physical and chemical properties. The aim of this study was to evaluate the efficiency of the conversion of biomass contained in the whitewater fraction of munici...
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MDPI AG
2022-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/3/988 |
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| author | Marcin Niemiec Jakub Sikora Anna Szeląg-Sikora Zofia Gródek-Szostak Monika Komorowska |
| author_facet | Marcin Niemiec Jakub Sikora Anna Szeląg-Sikora Zofia Gródek-Szostak Monika Komorowska |
| author_sort | Marcin Niemiec |
| collection | DOAJ |
| description | The utilization of municipal waste and sewage sludge as a source of energy is technically very difficult due to high variability of their physical and chemical properties. The aim of this study was to evaluate the efficiency of the conversion of biomass contained in the whitewater fraction of municipal waste and sewage sludge by means of methanogenesis. The second objective was to assess the chemical composition of the digestate in the context of its use for fertilizer purposes. The whitewater fraction of municipal waste and sewage sludge was subjected to methanogenesis under static experimental conditions, according to DIM DIN 38414 methodology. The methanogenesis of concentrated substrates used in agricultural biogas plants was taken as a reference to evaluate the efficiency of the process. The organic fraction of the municipal waste was characterized by approximately 30% lower value of the soluble COD, with a comparable level of total COD compared to other materials. The total biogas yield, i.e., 404 dm<sup>3</sup> per 1 kg of dry weight of the batch, was measured in the facility with sewage sludge. In COD value, this is 0.232 dm<sup>3</sup>·g O<sub>2</sub> COD. In the case of corn, these values were, respectively, 324 dm<sup>3</sup> and 0.193, and for the organic sub-sieve fraction of municipal waste, 287 dm<sup>3</sup>·kg<sup>−1</sup> dw or 0.178 dm<sup>3</sup>·g O<sub>2</sub> COD, respectively. The type of fermented material did not affect the intensity of biogas production. The maximum level of biogas production occurred between the 13th and 15th day of the process. The digestate obtained in the process of methanogenesis of corn silage and the organic fraction of municipal waste was characterized by good parameters in terms of possible use for fertilization purposes. |
| first_indexed | 2024-03-09T23:36:29Z |
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| id | doaj.art-d9188a3a09844d5ead51d1b2ff3588a2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:36:29Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d9188a3a09844d5ead51d1b2ff3588a22023-11-23T17:00:26ZengMDPI AGMaterials1996-19442022-01-0115398810.3390/ma15030988Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in AgricultureMarcin Niemiec0Jakub Sikora1Anna Szeląg-Sikora2Zofia Gródek-Szostak3Monika Komorowska4Faculty of Agriculture and Economics, University of Agriculture in Krakow, Mickiewicza 21, 31-120 Kraków, PolandFaculty of Production and Power Engineering, University of Agriculture in Krakow, ul. Balicka 116B, 30-149 Kraków, PolandFaculty of Production and Power Engineering, University of Agriculture in Krakow, ul. Balicka 116B, 30-149 Kraków, PolandDepartment of Economics and Enterprise Organization, Cracow University of Economics, ul. Rakowicka 27, 31-510 Kraków, PolandFaculty of Agriculture and Economics, University of Agriculture in Krakow, Mickiewicza 21, 31-120 Kraków, PolandThe utilization of municipal waste and sewage sludge as a source of energy is technically very difficult due to high variability of their physical and chemical properties. The aim of this study was to evaluate the efficiency of the conversion of biomass contained in the whitewater fraction of municipal waste and sewage sludge by means of methanogenesis. The second objective was to assess the chemical composition of the digestate in the context of its use for fertilizer purposes. The whitewater fraction of municipal waste and sewage sludge was subjected to methanogenesis under static experimental conditions, according to DIM DIN 38414 methodology. The methanogenesis of concentrated substrates used in agricultural biogas plants was taken as a reference to evaluate the efficiency of the process. The organic fraction of the municipal waste was characterized by approximately 30% lower value of the soluble COD, with a comparable level of total COD compared to other materials. The total biogas yield, i.e., 404 dm<sup>3</sup> per 1 kg of dry weight of the batch, was measured in the facility with sewage sludge. In COD value, this is 0.232 dm<sup>3</sup>·g O<sub>2</sub> COD. In the case of corn, these values were, respectively, 324 dm<sup>3</sup> and 0.193, and for the organic sub-sieve fraction of municipal waste, 287 dm<sup>3</sup>·kg<sup>−1</sup> dw or 0.178 dm<sup>3</sup>·g O<sub>2</sub> COD, respectively. The type of fermented material did not affect the intensity of biogas production. The maximum level of biogas production occurred between the 13th and 15th day of the process. The digestate obtained in the process of methanogenesis of corn silage and the organic fraction of municipal waste was characterized by good parameters in terms of possible use for fertilization purposes.https://www.mdpi.com/1996-1944/15/3/988biogasrenewable energy sourcesorganic fraction of municipal wastesewage sludgedigestatemanagement |
| spellingShingle | Marcin Niemiec Jakub Sikora Anna Szeląg-Sikora Zofia Gródek-Szostak Monika Komorowska Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture Materials biogas renewable energy sources organic fraction of municipal waste sewage sludge digestate management |
| title | Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture |
| title_full | Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture |
| title_fullStr | Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture |
| title_full_unstemmed | Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture |
| title_short | Assessment of the Possibilities for the Use of Selected Waste in Terms of Biogas Yield and Further Use of Its Digestate in Agriculture |
| title_sort | assessment of the possibilities for the use of selected waste in terms of biogas yield and further use of its digestate in agriculture |
| topic | biogas renewable energy sources organic fraction of municipal waste sewage sludge digestate management |
| url | https://www.mdpi.com/1996-1944/15/3/988 |
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