Affiliation:
1. Department of Water Supply and Sewage Systems, Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, 15-351 Białystok, Poland
2. Department of Environment Engineering, Faculty of Geoengineering, University of Warmia and Mazury in Olsztyn, 10-720 Olsztyn, Poland
Abstract
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/dm3). In this experimental variant, the biogas production rate reached 9.0 ± 0.2 cm3/gCOD·h, biogas yield was 492 ± 10 cm3/gCOD, and the biogas produced contained 69.8 ± 1.4% CH4. 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/dm3) and ultrasound thermal pre-treatment (60 min, 70 °C, OLR = 6.0 gCOD/dm3), respectively.
Funder
Minister of Education and Science
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
Reference41 articles.
1. Trajer, M., and Mieczkowski, M. (2018, January 7–8). Trends in poultry consumption after poland’s accession to the European union. Proceedings of the International Scientific Conference “Economic Sciences for Agribusiness and Rural Economy”, Warsaw, Poland. No. 2.
2. Poultry World (2022, December 09). Demand for Poultry Meat in EU Set to Slow. Available online: https://www.poultryworld.net/poultry/demand-for-poultry-meat-in-eu-set-to-slow/.
3. Cybulska, K., Kołosowska, I., Kramkowski, K., Karpińska, M., Roszkowicz-Ostrowska, K., and Kowalczyk, P. (2021). Improvement of Biogas Yield by Pre-Treating Poultry Waste with Bacterial Strains. Energies, 14.
4. Risk Assessment of Wild Game Meat Intake in the Context of the Prospective Development of the Venison Market in Poland;Mesinger;Pol. J. Environ. Stud.,2021
5. Mpofu, A., Kibangou, V., Kaira, W., Oyekola, O., and Welz, P. (2021). Anaerobic Co-Digestion of Tannery and Slaughterhouse Wastewater for Solids Reduction and Resource Recovery: Effect of Sulfate Concentration and Inoculum to Substrate Ratio. Energies, 14.
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