The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage
Regulations in force urge for thermal pre-treatment of post-slaughter waste prior to its anaerobic digestion. Increased interest in biomethane as a fuel in gas networks or vehicles of road transport forces the need to look for heating methods that are alternative to heat recovery from cogeneration....
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MDPI AG
2023-02-01
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2420 |
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| author | Joanna Kazimierowicz Marcin Dębowski Marcin Zieliński |
| author_facet | Joanna Kazimierowicz Marcin Dębowski Marcin Zieliński |
| author_sort | Joanna Kazimierowicz |
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| description | Regulations in force urge for thermal pre-treatment of post-slaughter waste prior to its anaerobic digestion. Increased interest in biomethane as a fuel in gas networks or vehicles of road transport forces the need to look for heating methods that are alternative to heat recovery from cogeneration. The goal of this study was to determine the synergistic effect of simultaneous ultrasound heating and disintegration on the technological efficiency and energetic balance of the anaerobic digestion of high-load slaughter poultry wastewater. The highest efficiency of anaerobic digestion was obtained for the ultrasound thermal pre-treatment (60 min, 90 °C, OLR = 2.0 gCOD/dm<sup>3</sup>). In this experimental variant, the biogas production rate reached 9.0 ± 0.2 cm<sup>3</sup>/gCOD·h, biogas yield was 492 ± 10 cm<sup>3</sup>/gCOD, and the biogas produced contained 69.8 ± 1.4% CH<sub>4</sub>. Given the incurred energy outputs, the highest net energetic efficiencies, i.e., 5.92 ± 0.43 Wh and 5.80 ± 0.42 Wh, were obtained in the variants with the conventional thermal pre-treatment (60 min, 70 °C, OLR = 6.0 gCOD/dm<sup>3</sup>) and ultrasound thermal pre-treatment (60 min, 70 °C, OLR = 6.0 gCOD/dm<sup>3</sup>), respectively. |
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| last_indexed | 2024-03-11T09:12:30Z |
| publishDate | 2023-02-01 |
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| spelling | doaj.art-e9dba51bcd244d3eb9ed275e8cfafa062023-11-16T18:55:30ZengMDPI AGApplied Sciences2076-34172023-02-01134242010.3390/app13042420The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry SewageJoanna Kazimierowicz0Marcin Dębowski1Marcin Zieliński2Department of Water Supply and Sewage Systems, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Białystok, PolandDepartment of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-720 Olsztyn, PolandDepartment of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-720 Olsztyn, PolandRegulations in force urge for thermal pre-treatment of post-slaughter waste prior to its anaerobic digestion. Increased interest in biomethane as a fuel in gas networks or vehicles of road transport forces the need to look for heating methods that are alternative to heat recovery from cogeneration. The goal of this study was to determine the synergistic effect of simultaneous ultrasound heating and disintegration on the technological efficiency and energetic balance of the anaerobic digestion of high-load slaughter poultry wastewater. The highest efficiency of anaerobic digestion was obtained for the ultrasound thermal pre-treatment (60 min, 90 °C, OLR = 2.0 gCOD/dm<sup>3</sup>). In this experimental variant, the biogas production rate reached 9.0 ± 0.2 cm<sup>3</sup>/gCOD·h, biogas yield was 492 ± 10 cm<sup>3</sup>/gCOD, and the biogas produced contained 69.8 ± 1.4% CH<sub>4</sub>. Given the incurred energy outputs, the highest net energetic efficiencies, i.e., 5.92 ± 0.43 Wh and 5.80 ± 0.42 Wh, were obtained in the variants with the conventional thermal pre-treatment (60 min, 70 °C, OLR = 6.0 gCOD/dm<sup>3</sup>) and ultrasound thermal pre-treatment (60 min, 70 °C, OLR = 6.0 gCOD/dm<sup>3</sup>), respectively.https://www.mdpi.com/2076-3417/13/4/2420post-slaughter wastewaterhigh-load wastewaterthermal pre-treatmentultrasoundsdisintegrationanaerobic digestion |
| spellingShingle | Joanna Kazimierowicz Marcin Dębowski Marcin Zieliński The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage Applied Sciences post-slaughter wastewater high-load wastewater thermal pre-treatment ultrasounds disintegration anaerobic digestion |
| title | The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage |
| title_full | The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage |
| title_fullStr | The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage |
| title_full_unstemmed | The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage |
| title_short | The Synergistic Effect of Simultaneous Ultrasound Heating and Disintegration on the Technological Efficiency and Energetic Balance of Anaerobic Digestion of High-Load Slaughter Poultry Sewage |
| title_sort | synergistic effect of simultaneous ultrasound heating and disintegration on the technological efficiency and energetic balance of anaerobic digestion of high load slaughter poultry sewage |
| topic | post-slaughter wastewater high-load wastewater thermal pre-treatment ultrasounds disintegration anaerobic digestion |
| url | https://www.mdpi.com/2076-3417/13/4/2420 |
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