Litteris et Artibus
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Item 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 UniversityThe 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.Item Technological process of cavitational water disinfection(Lviv Polytechnic Publishing House, 2016) Koval, Iryna; Lviv Polytechnic National UniversityTechnological scheme of cavitational water refinement is described that includes fourth stages: mechanical water refinement (first stage), water treatment by adsorbers (second stage), cavitational water treatment with gas bubbling (third stage) and fourth stage water is supplied to adsorbers again for microbial cells separation from the water and for products removal after cells destruction under cavitation treatment. The effectiveness of water purification is 95-99% that depends of initial amounts of microbes in the water system.Item Comparison of the bacteria destruction with and without gas action and cavitation(Видавництво Львівської політехніки, 2017-12-23) Koval, Iryna; Lviv Polytechnic National UniversityVarious branches of petroleum, chemical and food industries cause significant damage to natural reservoir; outdated and imperfect technology forms a substantial amount of harmful waste and wastewater to the environment. Mostly businesses these industries consume large amounts of water, which in some cases used directly for manufacturing processes, while others – for the support and maintenance of technology, ie for treatment products and semi-finished products, washing packing container and equipment etc.Item The simulation of cavitation process using the engineering analysis methods(Видавництво Львівської політехніки, 2017-12-23) Pidhirnyi, Roman; Hlukhaniuk, Anna; Motrunich, Oleksandr; Ivashchuk, Oleksandr; Starchevskyy, Volodymyr; Lviv Polytechnic National UniversityThe expediency of analysis and evaluation of the cavitation process by methods on the CAE software complexes have been shown.