Hydrogen Dark Fermentation for Degradation of Solid and Liquid Food Waste

Energies

Olesia Havryliuk¹  Oleksandr Tashyrev¹  Galina Gladka¹  Vira Hovorukha¹  Monika Sporek²  Antonina Kalinichenko³  Agnieszka Dołhańczuk-Śródka³ 

[1] Department of Extremophilic Microorganisms Biology, Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine, 03143 Kyiv, Ukraine;Institute of Biology, University of Opole, 45-040 Opole, Poland;Institute of Environmental Engineering and Biotechnology, University of Opole, 45-040 Opole, Poland;

关键词: biohydrogen;    green energy;    fermentation;    solid food waste;    liquid food waste;    environmental biotechnology;   

DOI  :  10.3390/en14071831

来源: DOAJ

【 摘 要 】

The constant increase in the amount of food waste accumulating in landfills and discharged into the water reservoirs causes environment pollution and threatens human health. Solid and liquid food wastes include fruit, vegetable, and meat residues, alcohol bard, and sewage from various food enterprises. These products contain high concentrations of biodegradable organic compounds and represent an inexpensive and renewable substrate for the hydrogen fermentation. The goal of the work was to study the efficiency of hydrogen obtaining and decomposition of solid and liquid food waste via fermentation by granular microbial preparation (GMP). The application of GMP improved the efficiency of the dark fermentation of food waste. Hydrogen yields reached 102 L/kg of solid waste and 2.3 L/L of liquid waste. The fermentation resulted in the 91-fold reduction in the weight of the solid waste, while the concentration of organics in the liquid waste decreased 3-fold. Our results demonstrated the potential of granular microbial preparations in the production of hydrogen via dark fermentation. Further development of this technology may help to clean up the environment and reduce the reliance on fossil fuels by generating green hydrogen via recycling of household and industrial organic wastes.

【 授权许可】

Unknown