Litteris et Artibus

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Author: search.filters.author.Mnykh, Roman

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    Approbation of cavitation and flotation separation technology of heterogeneous liquid phase environments
    (Lviv Polytechnic Publishing House, 2016) Znak, Zynoviy; Sukhatskiy, Yuriy; Zin, Olga; Mnykh, Roman; Lviv Polytechnic National University
    The concept of cavitation and flotation technology to separate heterogeneous liquid-phase environments was proposed. It implements the principle of the chemical-technological systems synthesis. The results of approbation of this technology in various industrial processes: sulfuric ore enrichment; intensification of regeneration stage of used absorbent solution from purification process of exhaust gases formed in the calcination furnaces of metatitanic acid paste from SO2; separation of kaolin slurry; extraction of sodium oxalate from liquid wastes of leather industries; separation of the insoluble residue during dissolution of langbeinite ore. High efficiency of the developed technology was shown.
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    Peculiarites of benzene decomposition in cavitation fields
    (Видавництво Львівської політехніки, 2017-12-23) Znak, Zynovii; Sukhatskii, Yurii; Zin, Olha; Mnykh, Roman; Khomiak, Semen; Hrabarovska, Anastasiia; Lviv Polytechnic National University
    It is proposed to carry out treatment of wastewaters, containing of aromatic compounds, in particular benzene, in cavitation fields. The results of studies of the cavitational decomposition of benzene under isothermal conditions (at temperatures 303, 313 and 323 K) are presented. The extremal characterof the dependence of the degree of decomposition of benzene from temperature with a minimum of 313 K is established. An abnormal appearance of the dependence is explained by possibility of occurrence of secondary processes , namely the formation of gas bubbles of nanometer sizes (babstons) and their clusters, which have high mechanical resistance and diffusivityy, and also on the basis of the kinetic theory of Frenkel's fluid.Recommendations for the implementation of the benzene decomposition process in cavitation fields are formulated on the basis of the results of experimental studies.