Browsing by Author "Говоруха, В.М."

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    Increase in efficiency of hydrogen production by optimization of food waste fermentation parameters
    (Lietuvos mokslų akademija, 2019) Ястремська, Лариса Сергіївна; Говоруха, В.М.; Таширев, О.Б.; Таширева, Г.Б.; Гаврилюк, О.С.; Бєлікова, О.Ю.; Iastremska, Larysa; Hovorukha, Vira; Tashyrev, Oleksandr; Tashyreva, Hanna; Havryliuk, Olesia; Bielikova, Olena
    The aim of the work was to optimize the ratio of weight of solid (food waste) and liquid (water) phases in order to ensure high efficiency of molecular hydrogen synthesis and degradation of multi-component food waste. Assessment of the efficiency of fermentation process was carried out using colorimetric and potentiometric methods for pH and redox potential measuring, volumetric and chromatographic methods for volume and composition of gas investigation, and mathematical calculations for fermentation parameters determination. The dynamics of hydrogen fermentation of waste in the horizontal reactor using different ratios of solid (food waste) and liquid (water) phases was investigated. The optimization of the ratio of solid and liquid phases was shown to lead to the increase in efficiency of molecular hydrogen synthesis and destruction of waste particles. The ratio of solid and liquid phases 1:3 was determined to be optimal for the effective synthesis of hydrogen as well as for maximum waste decomposition. It provided effective hydrogen fermentation of multi-component food waste and allowed to rationally use material and technical resources. Obtained results are promising for further development of efficient industrial biotechnologies for waste destruction with the simultaneous synthesis of environmentally friendly energy carrier, i.e. molecular hydrogen.
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    The isolation of copper resistant retro microbiome from eco-friendly ecosystem of “Atlantida” karst cave
    (Danylo Zabolotny Institute of Microbiology and Virology of the National Academy of Sciences of Ukraine, 2019-11) Yastremska, Larysa Sergiivna; Bakhmatska, Dar’ya Olexandrivna; Havryliuk, Olesya Anatoliivna; Hovorukha, V.M.; Tashyrev, O. B.; Ястремська, Лариса Сергіївна; Бахмацька, Дар’я Олександрівна; Гаврилюк, Олеся Анатоліївна; Говоруха, В.М.; Таширев, О.Б.
    The capability of the retro microbiome of “Atlantida” cave eco-friendly ecosystem to grow at the presence of toxic concentrations (up to 2000 ppm) of Cu (II) was shown. The offered methodological approach is a novel universal method of isolation of copper-resistant microorganisms from natural extreme and retro ecosystems of the globe. The isolated copper resistant microorganisms are prospective for industrial purification of copper-containing waste-waters and contaminated soils.
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    Виділення анаеробних залізовідновлювальних бактерій з екстремальних екосистем
    (2015) Ястремська, Лариса Сергіївна; Бєлікова, О.Ю.; Гаврилюк, О.А.; Говоруха, В.М.
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    РОЗРОБКА БІОТЕХНОЛОГІЇ ОТРИМАННЯ МОЛЕКУЛЯРНОГО ВОДНЮ ПРИ МАКСИМАЛЬНІЙ ДЕСТРУКЦІЇ ХАРЧОВИХ ВІДХОДІВ
    (НАН України, 2018) Ястремська, Лариса Сергіївна; Таширев, О.Б.; Говоруха, В.М.; Гаврилюк, О.А.; Сіома, І.Б.; Матвєєва, Н.А.; Бєлікова, О.Ю
    Molecular hydrogen is a high-energy, environmentally friendly and most promising energy carrier among alternative energy sources. Fermentation of organic matter is the most profitable direction of its industrial production, since environmentally hazardous solid food waste of megacities is cheap and constantly renewable substrate for microbial synthesis of H2. However, such biotechnologies require detailed study and efficiency improvement. Therefore, the purpose of our work was to develop an optimal mode of fermentation of environmentally hazardous multi component food waste to obtain environmentally friendly energy carrier H2. On the basis of thermodynamic prediction of the regularities of food waste fermentation, two strategically important conditions for an effective biotechnological process were formulated and experimentally confirmed, namely: Eh = –300...–400 mV, pH = 6.0...7.0. Biotechnology developed by us provided not only high yield of H2 (VH2 = 100-127 l/kg of waste), but also rapid (T = 3-4 days) and effective destruction of environmentally hazardous waste (Kd = 93-140). We have developed the theoretical model and biotechnological algorithm for efficient obtaining of H2 and rapid fermentation of environmentally hazardous organic waste. Obtained results are promising for development of novel industrial biotechnologies for synthesis of H2 with simultaneous destruction of waste and bioremediation of environment.