Перегляд за Автор "Obodovych, O. M."

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    Application of rotary-pulsation device in invert sugar syrup technology
    (КПІ ім. Ігоря Сікорського, 2025) Obodovych, O. M.; Pereiaslavtseva, О. О.; Rezakova, T. A.; Chernyavsky, K. E.; Buliy, Y. V.
    Experimental studies have proven the effectiveness of using a rotarypulsation apparatus in the technology of invert sugar syrups, which allows intensifying the process of their production. Comparative characteristics of invert sugar syrup obtained by the existing and proposed methods are presented.
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    Experimental studies on the influence of technological parameters on the delignification of wheat straw
    (КПІ ім. Ігоря Сікорського, 2025) Obodovych, O. M.; Pereiaslavtseva, О. О.; Stepanova, O. E.; Sheiko, T. V.
    The paper presents the results of experimental studies of the influence of technological parameters of preliminary preparation of wheat straw for hydrolysis in a rotary-pulsation apparatus on the process of lignin removal. It was determined that increasing the initial temperature of the mixture from 180C to 900C allows to increase the yield of lignin by 2 times.
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    Technologies and heat exchange equipment for treatment and utilization of wastewater from thermal power plants
    (КПІ ім. Ігоря Сікорського ; ТОВ «Українська водна спілка», 2024) Obodovych, O. M.; Sablii, L. A.; Nedbailo,A. Ye.; Tselen, B. Ya.; Stepanova, O. O.
    The article considers the problems of hydrosphere pollution in Ukraine, in particular, those related to the activities of thermal power plants. The main sources of discharges that arise during their operation are described, including wastewater from cooling systems, exhaust gas desulfurization systems, as well as water contaminated with petroleum products. The classification of wastewater, its features and consequences for the ecosystem emphasize the relevance of compliance with discharge standards and, depending on their types, allow you to choose a method for their purification and disposal. The article describes in detail the processes of purification of polluted waters with an emphasis on the use of unique methods and equipment, such as rotary aeration and oxidation plants, which increase the efficiency of purification by using the method of discrete-pulse energy input. The authors propose modern technologies for emulsifying watered liquid hydrocarbons, which provides the possibility of utilizing wastewater from thermal power plants contaminated with petroleum products. The analysis showed that the design of the rotor-pulsation apparatus unit implements intensive homogenization and emulsification of the treated system. The processes of combustion of water-fuel emulsions are also considered, which allows reducing emissions of pollutants. The results of the study indicate the possibility of significantly reducing the negative impact on the environment due to effective wastewater treatment to maximum allowable concentrations of harmful substances in water bodies. The conducted studies allow making the right choice of treatment or disposal technology, their treatment mode depending on the type of wastewater, which will ensure compliance with environmental standards to ensure the purity of water resources of Ukraine.
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    Use of the discrete-pulse energy input method in bioethanol production
    (КПІ ім. Ігоря Сікорського, 2025) Obodovych, O. M.; Pereiaslavtseva, О. О.; Rezakova, T. A.; Khomenko, V. A.
    The paper considers the relevance and demand for the use of bioethanol as an additive to motor fuel worldwide. The advantages and disadvantages of bioethanol production from lignocellulosic raw materials in comparison with traditional raw materials containing starch are considered. A universal resource- and energy-saving heat and mass exchange unit operating on the principle of discrete-pulse energy input and a hardware and technological scheme for preparing wort in the technology of obtaining bioethanol from lignocellulosic raw materials are developed.