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The Influence of Co-Fermentation of Agri-Food Waste with Primary Sludge on Biogas Production and Composition of the Liquid Fraction of Digestate

Author

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  • Anna Wilinska-Lisowska

    (Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland)

  • Monika Ossowska

    (Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland)

  • Krzysztof Czerwionka

    (Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland)

Abstract

Energy self-sufficiency is a current trend in wastewater treatment plants. This effect can be achieved by increasing the production of electricity from biogas and by reducing energy consumption for technological processes. One idea, in line with the circular economy concept, is the use of waste rich in organic matter as co-substrates for the fermentation process. The aim of this study was to determine the effect of waste co-fermentation on biogas production and nitrogen concentration in the reject water. A co-fermentation process with flotate or flotate and vegetables increased biogas production compared to primary sludge by 162 and 180%, respectively. During the tests, there was no inhibition of the fermentation process. Hydrolysis of organic compounds contained in flotate and vegetables resulted in a significant increase in ammonium nitrogen (by 80–100%) and dissolved organic nitrogen concentration (by 170–180%). The biogas and methane production rate as well as the ammonium and total nitrogen release rate were calculated. An energy balance was made, which took into account the variable amount of electric energy production depending on the efficiency of the cogeneration systems and energy consumption for supplying oxygen necessary to remove nitrogen contained in the reject water. A positive energy balance was obtained for all analyses.

Suggested Citation

  • Anna Wilinska-Lisowska & Monika Ossowska & Krzysztof Czerwionka, 2021. "The Influence of Co-Fermentation of Agri-Food Waste with Primary Sludge on Biogas Production and Composition of the Liquid Fraction of Digestate," Energies, MDPI, vol. 14(7), pages 1-20, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:7:p:1907-:d:526852
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    References listed on IDEAS

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    1. Sharma, V. K. & Testa, C. & Lastella, G. & Cornacchia, G. & Comparato, M. P., 2000. "Inclined-plug-flow type reactor for anaerobic digestion of semi-solid waste," Applied Energy, Elsevier, vol. 65(1-4), pages 173-185, April.
    2. Mehdi Sharif Shourjeh & Przemysław Kowal & Jakub Drewnowski & Bartosz Szeląg & Aleksandra Szaja & Grzegorz Łagód, 2020. "Mutual Interaction between Temperature and DO Set Point on AOB and NOB Activity during Shortcut Nitrification in a Sequencing Batch Reactor in Terms of Energy Consumption Optimization," Energies, MDPI, vol. 13(21), pages 1-21, November.
    3. Sambo, A.S. & Garba, B. & Danshehu, B.G., 1995. "Effect of some operating parameters on biogas production rate," Renewable Energy, Elsevier, vol. 6(3), pages 343-344.
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    Cited by:

    1. Robert Czubaszek & Agnieszka Wysocka-Czubaszek & Wendelin Wichtmann & Grzegorz Zając & Piotr Banaszuk, 2023. "Common Reed and Maize Silage Co-Digestion as a Pathway towards Sustainable Biogas Production," Energies, MDPI, vol. 16(2), pages 1-25, January.
    2. Phemelo Tamasiga & Taghi Miri & Helen Onyeaka & Abarasi Hart, 2022. "Food Waste and Circular Economy: Challenges and Opportunities," Sustainability, MDPI, vol. 14(16), pages 1-30, August.
    3. Aleksandra Kuzior & Józef Ober & Janusz Karwot, 2021. "Stakeholder Expectation of Corporate Social Responsibility Practices: A Case Study of PWiK Rybnik, Poland," Energies, MDPI, vol. 14(11), pages 1-24, June.
    4. Eliza Kulbat & Krzysztof Czerwionka, 2023. "Influence of Phosphorus Speciation on Its Chemical Removal from Reject Water from Dewatering of Municipal Sewage Sludge," Energies, MDPI, vol. 16(3), pages 1-12, January.
    5. Otton K. Roubinek & Anna Wilinska-Lisowska & Magdalena Jasinska & Andrzej G. Chmielewski & Krzysztof Czerwionka, 2023. "Production of Biogas from Distillation Residue as a Waste Material from the Distillery Industry in Poland," Energies, MDPI, vol. 16(7), pages 1-15, March.
    6. Przemysław Kowal & Sławomir Ciesielski & Jeremiah Otieno & Joanna Barbara Majtacz & Krzysztof Czerwionka & Jacek Mąkinia, 2021. "Denitrification Process Enhancement and Diversity of the Denitrifying Community in the Full Scale Activated Sludge System after Adaptation to Fusel Oil," Energies, MDPI, vol. 14(17), pages 1-20, August.

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