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Assessment of the Seasonal Potential of Macroalgae and Grass in the Sea of Azov for Methanogenesis and Optimization of the Digestate’s Carbon/Nitrogen Ratio

Author

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  • Vadim Burko

    (Department of Primary Science Institute of Modern Technologies, Pryazovskyi State Technical University, 87555 Mariupol, Ukraine)

  • Alvydas Zagorskis

    (Institute of Environmental Protection, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Nelli Elistratova

    (Department of Primary Science Institute of Modern Technologies, Pryazovskyi State Technical University, 87555 Mariupol, Ukraine)

  • Olha Khliestova

    (Department of Primary Science Institute of Modern Technologies, Pryazovskyi State Technical University, 87555 Mariupol, Ukraine)

  • Jaunius Urbonavičius

    (Institute of Environmental Protection, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
    Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania)

  • Vladimir Monin

    (Department of Primary Science Institute of Modern Technologies, Pryazovskyi State Technical University, 87555 Mariupol, Ukraine)

Abstract

Large amounts of macroalgae and grass are dumped on the shores of the Sea of Azov in different seasons. Aquatic plant biomass management could contribute to sustainable development. By mixing them with co-substrates in an anaerobic bioreactor, not only can biogas be extracted, but suitable fertilizers can also be obtained. This study discusses the possibility of using methanogenesis waste from Azov Sea algae and sea grass as a fertilizer for agriculture. The main criterion is the presence of carbon (C) and nitrogen (N) in the waste products of methanogenesis. The influence of climatic and seasonal factors in the Azov region on the quality and quantity of storm emissions, on the productivity of methanogenesis, and changes in the ratio of carbon (C) and nitrogen (N) during methanogenesis and in the fermented substrate has been established. The influence of the ratio of the components of the mixture in various proportions, before methanogenesis, on the productivity of methanogenesis and the change in the ratio of carbon (C) and nitrogen (N) during the process of methanogenesis, and in the fermented substrate were studied. The biomass of the Sea of Azov, cattle manure and wastewater waste in various proportions, were used as components of the mixture. Recommendations are given for the selection of mixture components for methanogenesis, with predicted indicators of the ratio of carbon (C) and nitrogen (N) in the fermented substrate.

Suggested Citation

  • Vadim Burko & Alvydas Zagorskis & Nelli Elistratova & Olha Khliestova & Jaunius Urbonavičius & Vladimir Monin, 2024. "Assessment of the Seasonal Potential of Macroalgae and Grass in the Sea of Azov for Methanogenesis and Optimization of the Digestate’s Carbon/Nitrogen Ratio," Sustainability, MDPI, vol. 16(3), pages 1-16, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:3:p:1134-:d:1328939
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    References listed on IDEAS

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    1. U. Riebesell & K. G. Schulz & R. G. J. Bellerby & M. Botros & P. Fritsche & M. Meyerhöfer & C. Neill & G. Nondal & A. Oschlies & J. Wohlers & E. Zöllner, 2007. "Enhanced biological carbon consumption in a high CO2 ocean," Nature, Nature, vol. 450(7169), pages 545-548, November.
    2. Alvydas Zagorskis & Regimantas Dauknys & Mantas Pranskevičius & Olha Khliestova, 2023. "Research on Biogas Yield from Macroalgae with Inoculants at Different Organic Loading Rates in a Three-Stage Bioreactor," IJERPH, MDPI, vol. 20(2), pages 1-17, January.
    3. Syaichurrozi, Iqbal, 2018. "Biogas production from co-digestion Salvinia molesta and rice straw and kinetics," Renewable Energy, Elsevier, vol. 115(C), pages 76-86.
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