Вісники та науково-технічні збірники, журнали

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Author: search.filters.author.Tymchuk, IvanHas files: Yes

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    Implementation of the european green strategy. Synergy of educational, scientific, managerial and industrial components for climate management and climate change prevention / Climan Erasmus+ KA2
    (Видавництво Львівської політехніки, 2023-02-28) Liuta, Oksana; Malovanyy, Myroslav; Vnukova, Nataliia; Tymchuk, Ivan; Zhelnovach, Ganna; Kordzadze, Tea; Lviv Polytechnic National University; Kharkiv National Automobile and Highway University; Akaki Tsereteli State University
    The urgent problems related to environmental and climate factors, the solution of which requires the involvement of highly qualified and narrow-profile specialists capable of solving and developing effective measures to minimize the negative effects of global warming, were analyzed. The analysis demonstrates that today in Ukraine, there is an urgent need to train climate management specialists due to the global nature of this problem. The main aspects and advantages of the participation of Ukrainian universities in the joint project Erasmus+ KA2 “Synergy of educational, scientific, managerial and industrial components for climate management and climate change prevention” (Climan), which promotes the implementation of multi-level education and professional training on climate services, climate change adaptation and mitigation at the local, national and regional levels are presented. The important particularities and innovative results of the project implementation in higher education institutions in Ukraine, which involve creating climate management centres based on educational institutions, developing interdisciplinary training modules Climate Management, and training qualified climate managers, were described.
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    Technical and technological aspects of biological reclamation using anthropogenic organic waste in composition with sewage sludge
    (Видавництво Львівської політехніки, 2023-02-28) Tymchuk, Ivan; Lviv Polytechnic National University
    A systematic modern analysis of the state of waste management in the country encourages the search for more rational, efficient and cost-effective ways of processing and recycling solid waste. The inclusion of sewage sludge as a raw material in technologies for processing substrates makes it possible to solve the problems of accumulation and negative environmental impact of this hazardous waste, in addition to the problems of recycling. Promising strategies for the use of sewage sludge in combination with other components for reclamation purposes are considered: the production of substrates by direct mixing without any physical and chemical transformation of the substrate before application for reclamation purposes; composting to obtain reclamation compost; preliminary anaerobic biodegradation with the formation of biogas and subsequent use of digestate for reclamation purposes. The conditions for the application of the strategies, their advantages and disadvantages are analyzed.
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    The influence of terrain, climatic conditions and factors on the atmospheric air monitoring system, based on the implementation of eu legislation on the example of Lviv region
    (Видавництво Львівської політехніки, 2023-02-28) Kravets, Ihor; Malovanyy, Myroslav; Tymchuk, Ivan; Shkvirko, Oksana; Department of Ecology and Natural Resources of the Lviv Regional State Administration; Lviv Polytechnic National University
    The article is devoted to the influence of terrain, landscapes, and meteorological conditions on the establishment of air quality monitoring points in the relevant territory of the Lviv region. The main factors affecting the distribution of the concentration of pollutants in atmospheric air during the design of air monitoring stations have been determined. It was established that the level of the surface concentration of pollutants increases with an increase in the power of the emission source, the density, and size of impurity particles, and decreases with an increase in the height and radius of the orifice of the emission source, the temperature of the emission, and the rate of release of impurities from the source.
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    Obtaining Environmentally Friendly Encapsulated Mineral Fertilizers Using Encapsulated Modified Pet
    (Видавництво Львівської політехніки, 2022-03-01) Grechanik, Ruslan; Lutek, Wojciech; Malovanyy, Myroslav; Nagursky, Oleg; Tymchuk, Ivan; Petrushka, Kateryna; Luchyt, Liubov; Storoshchuk, Uliana; Lviv Regional State Administration; Maria Curie Sklodowska University; Lviv Polytechnic National University
    The article deals with the study of the prospects for the use of mineral fertilizers encapsulated in PET for bioremediation. This increases efficiency, prevents environmental pollution from undigested plants with plant nutrients, and minimizes the number of application operations. In addition, it disposes of a significant portion of PET waste, the uncontrolled accumulation of which poses a threat to the environment. The basic technological schemes of preparation of a film-forming composition and encapsulation of fertilizers are offered. The kinetic parameters of the process of release of batteries of granulated ammonium nitrate encapsulated with a film based on modified PET are determined.
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    Analysis of the main methods of solid waste management
    (Видавництво Львівської політехніки, 2021-06-01) Storoshchuk, Ulana; Malovanyy, Myroslav; Tymchuk, Ivan; Luchyt, Liubov; Lviv Polytechnic National University
    The world’s growing population and, as a result, higher consumption of goods and services have led to a rapid increase in municipal solid waste. This situation creates serious environmental problems that require clear strategies for managing this waste. Improving the efficiency of recycling to restore quality materials, saving resources and maintaining waste in landfills are among the most pressing problems of our time. The article considers the existing methods of solid waste management in order to select the most optimal waste management system in the context of sustainable development.
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    Improvement of the municipal solid waste disposal system in Ukraine, on the example of the town of Chortkiv, Ternopil region
    (Видавництво Львівської політехніки, 2021-06-01) Ratushniak, Maryna; Tymchuk, Ivan; Berezyuk, Dariya; Malovanyy, Myroslav; Lviv Polytechnic National University
    Today, in Ukraine, there is a problem with solid waste disposal, especially in small towns. The lack of a developed system for the collection and disposal of solid waste, the presence of natural landfills instead of equipped landfills lead to the fact that small towns are abandoned. Therefore, the creation of a new solid waste management policy is an acute problem for these towns and villages. This article is devoted to analysing the global experience of solid waste management and, based on that, formulating recommendations for solid waste management in small towns using Chortkiv as an example.
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    Prospects of cleaning filtrates by aerobic-reagent method on the example of Lviv region
    (Видавництво Львівської політехніки, 2021-06-01) Malovanyy, Myroslav; Zhuk, Volodymyr; Tymchuk, Ivan; Vronska, Nataliya; Zavoyko, Bogdan; Senkovych, Olha; Lviv Polytechnic National University
    In 2021, the situation with the collecting, processing and disposal of waste in general, solid waste in particular, remains difficult in Ukraine and needs to be solved immediately. Soil contamination, as well as contamination of surface and ground waters by filtration effluents (or filtrates), is one of the most dangerous consequences of non-regulatory disposal of solid household waste.
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    Optimum collection and concentration strategies of hydrobionts excess biomass in biological surface water purifying technologies
    (Видавництво Львівської політехніки, 2021-03-03) Malovanyy, Myroslav; Tymchuk, Ivan; Balandiukh, Iurii; Soloviy, Christina; Zhuk, Volodymyr; Kopiy, Maria; Stokaliuk, Oleh; Petrushka, Kateryna; Lviv Polytechnic National University; Ukrainian National Forestry University; Lviv State University of Life Safety
    The analysis of perspective collection and concentration technologies of excess biomass in the technologies of wastewater and surface water biological treatment with the use of aquatic organisms has been carried out. The scheme of a life cycle of the aquatic organisms in wastewater and surface water treatment technologies has been proposed. The analysis of technological approaches for biomass collection of three types: aquatic plants and macroalgae; aquatic plants with a developed root system and microalgae of aquatic organisms has been carried out. A strategy for concentrating microalgae has been proposed. The high efficiency of the coagulation-flocculation gravitational thickening method of freshwater microalgae suspensions of the Microcystis aeruginosa species has been confirmed in laboratory conditions.
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    Composting as one of the prospective methods of recycling the organic component of municipal solid waste
    (Видавництво Львівської політехніки, 2020-02-24) Storoshchuk, Ulana; Malovanyy, Myroslav; Tymchuk, Ivan; Lviv Polytechnic National University
    In the conditions of constant deterioration of the environment, municipal solid waste management (MSW) in Ukraine remains one of the most pressing challenges in environmental safety because of its significant accumulation in landfills and the lack of effective mechanisms for its disposal. Approximately 40–50 % of municipal solid waste is organic, so the removal of this part of waste from landfills through composting and conversion of waste into secondary material resources will significantly reduce the environmental load on existing and potentially planned landfills. Therefore, the choice of promising technologies for the disposal of organic waste is one of the major tasks to ensure environmental safety. One of the effective strategies for dealing with excessive amounts of organic waste and one of the best and most affordable technologies for the waste recycling system is composting.
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    Theoretical and practical aspects of the efficiency of application of mineral fertilizers encapsulated with polyethylene terephthalate
    (Видавництво Львівської політехніки, 2020-02-10) Synelnikov, Serhiy; Malovanyy, Myroslav; Nahurskyy, Oleh; Luchyt, Liubov; Petrushka, Kateryna; Tymchuk, Ivan; Stokaliuko, Oleh; Lviv Polytechnic National University; Lviv State University of Life Safety
    The environmental impact of residual mineral fertilizers not utilized by plants is analyzed. It is shown that this negative effect extends to all elements of the environment: soil, atmosphere, hydrosphere. The perspective of the application of encapsulated mineral fertilizers that allow prolonged release of plant nutrients is outlined. The appliccation of modified polyethylene terephthalate (PETF) as a capsule-forming material for encapsulated mineral fertilizers is proposed. PET modification and fertilizer encapsulation technologies have been tested. The dynamics of the release of nutrients from fertilizers encapsulated by PET has been studied. The kinetics of watercress salad growth with the use of granular and encapsulated fertilizers has been investigated.