Litteris et Artibus

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    Technological process of cavitational water disinfection
    (Lviv Polytechnic Publishing House, 2016) Koval, Iryna; Lviv Polytechnic National University
    Technological 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.
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    Comparison of the bacteria destruction with and without gas action and cavitation
    (Видавництво Львівської політехніки, 2017-12-23) Koval, Iryna; Lviv Polytechnic National University
    Various branches of petroleum, chemical and food industries cause significant damage to natural reservoir; outdated and imperfect technology forms a substantial amount of harmful waste and wastewater to the environment.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.