Вісники та науково-технічні збірники, журнали
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Item Environmentally safe reclamation of solid waste landfills(Видавництво Львівської політехніки, 2023-02-28) Grechanik, Ruslan; Malovanyy, Myroslav; Korbut, Mariia; Petrushka, Kateryna; Luchyt, Liubov; Boyko, Ruslan; Synelnikov, Serhiy; Bordun, Ihor; Ministry of Environmental Protection and Natural Resources of Ukraine; Lviv Polytechnic National University; Zhytomyr Polytechnic State University; Armed Forces of Ukraine; Czestochowa University of TechnologyThe main stages of the reclamation of solid waste landfills have been considered. The processes that limit ensuring the ecological safety of reclamation have been identified. In particular, three stages that may be hazardous for the environment have been highlighted: leachate treatment, preparation of soil or substrate for biological reclamation, and preparation of seeds and planting material. Leachate treatment by the aeration method in an aerated lagoon is recommended. The prospect of using such a process has been investigated in laboratory conditions. To ensure the prolonged release of nutrients in the reclamation layer, it is suggested to use encapsulated fertilizers. The effectiveness of the encapsulated fertilizer covered with a PET shell has been studied. For afforestation using high-quality planting material, the use of in vitro microcloning technology is proposed. The perspective of the method is shown in the example of microcloning of the white mulberry Morus alba L.Item 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 UniversityThe 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.Item Development of Lightweight Grouting Materials Based on By-Products of Ukrainian Industry(Видавництво Львівської політехніки, 2023-02-28) Orlovskyy, Vitalii; Biletskyi, Volodymyr; Malovanyy, Myroslav; Kharkiv National University of Urban Economy named after O. M. Becketov; National Technical University “Kharkiv Polytechnic Institute”; Lviv Polytechnic National UniversityСтворено новий конкурентоздатний клас тампонажних матеріалів – полегшених і легких тампонажних матеріалів (ПТМ) густиною 1370–1650 кг/м3. Компоненти: тампонажний портландцемент ПЦТІ 100, побічний продукт виробництва шамоту з каолінової сировини тонкодисперсний порошок марки ПЕ, кислі золи виносу ТЕС, побічний продукт виробництва вапна вапняний пил (ВП). Рентгенофазовим і диференційно-термічним аналізом полегшеного тампонажного каменю уточнено склад новоутворень у процесі гідратації ПТМ. Визначено раціональні оптимальні співвідношення інгредієнтів і температурні режими тужавіння ПТМ за критеріями міцності цементного каменю.Item The investigation of the porous structure of carbon sorbents based on β-cyclodextrin for use in environmental protection technologies(Видавництво Львівської політехніки, 2023-02-28) Bordun, Ihor; Malovanyy, Myroslav; Szymczykiewicz, Ewelina; Czestochowa University of Technology; Lviv Polytechnic National UniversityIn this paper, the porous structure of three types of β-cyclodextrin (β-CD) carbons was synthesized and investigated. The first carbon was obtained from pure β-CD, the second carbon was synthesized from β-CD using the KOH activator, and the third carbon was synthesized from pure β-CD with additional ultrasonic treatment in the non-cavitation mode at the last stage. It was found that the carbon from pure β-CD has a micromesoporous structure with a small specific surface area (~35 m2/g). Activation with KOH causes a significant increase in the specific surface area (~654 m2/g) due to an increase in the content of micropores with an average size of 1,25 nm. The ultrasonic treatment causes mechanical grinding and oxidation of the carbon surface. It has been shown that such treatment increases the mesopore content and significantly changes the mesopore size distribution. It has been established that the oxidation of the β-CD carbon surface after ultrasonic treatment causes an increase in its hydrophilicity of up to 83,1%. The increase in hydrophilicity will allow more efficient use of synthesized carbon and composites based on it in solving the problems of environmental safety in water environments.Item 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 UniversityThe 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.Item Use of Activated Clinoptilolite for Direct Dye-Contained Wastewater Treatment(Видавництво Львівської політехніки, 2020-03-16) Kochubei, Viktoria; Yaholnyk, Svitlana; Bets, Mariana; Malovanyy, Myroslav; Lviv Polytechnic National UniversityЗапропоновано метод комплексної термічної та хімічної активації природного клиноптилоліту Сокирницького родовища. Хімічну активацію мінералу проводили внаслідок оброблення розчинами HCl за різного співвідношення рідкої та твердої фаз. З використанням термічного та ІЧ-спектроскопічного аналізів досліджена адсорбційна здатність природного та активованого клиноптилоліту відносно парів води. Досліджена здатність комплексно активованого клиноптилоліту адсорбувати прямі барвники із їх водних розчинів. Визначені константи ізотерми мономолекулярної адсорбції Ленгмюра. Запропоновано застосовувати активований клиноптилоліт для очищення стічних вод від органічних забруднень.Item Disposal of used forming mixtures from foundries of machine-building plants in the production of perforated material(Видавництво Львівської політехніки, 2022-03-01) Malovanyy, Myroslav; Ilyash, Oksana; Povzun, Oleksiy; Bylym, Ludmyla; Osinniy, Nikita; Lviv Polytechnic National University; National University “Yuri Kondratyuk Poltava Polytechnic”; Donetsk National Technical UniversityThe waste of foundries of machine-building plants - spent moulding mixtures was studied. The expediency of using spent mixtures of foundry production as a siliceous component of foam concrete mixtures has been proven. The spent mixtures were studied for their foaming ability. The foam properties are determined. The effect of concrete mixture components on the pore-forming ability of foam agents was investigated. Of the six foaming agents studied in the work, saponified tree resin was found to be the most effective. The technological parameters for the preparation of aerated concrete mixture have been developed. The average density of foam concrete in the dry state and its limit of compressive strength were used as criteria for resource evaluation of used moulding mixtures of foundry production. Foam concrete products of non-autoclave hardening with an average density of not less than 900 kg/ m3 and a compressive strength of not less than 4.5 MPa were obtained.Item Obtaining and Using Substrates with Sewage Sludge(Видавництво Львівської політехніки, 2022-03-01) Malovanyy, Myroslav; Storoshchuk, Uliana; Lviv Polytechnic National UniversityThe article is devoted to the study of the prospects of using compost with sewage sludge in the raw material for the recultivation of disturbed lands. A special installation was used for bio-composting, which allowed controlling of the process parameters. The results of bio-indication of composts obtained under different conditions of compositions of the raw material mixture are given. Based on the analysis of the results of bioindication, the optimal composition of the raw material mixture using “fresh” and “old” sewage sludge is established. An analysis of the parameters of the bio-indication process was carried out for this compost of optimal composition, which makes it possible to develop recommendations for the implementation of the process in industrial conditions.Item 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 UniversityThe 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.Item Histrory of International Partnership – Scientific Priorities and Educational Activity of Professor Tsitsino Turkadze(Видавництво Львівської політехніки, 2022-03-01) Malovanyy, Myroslav; Turkadze, Tsitsino; Lviv Polytechnic National University; Akaki Tsereteli State UniversityThe article describes the main stages of professional work, scientific priorities, and educational activities of Professor Tsitsino Turkadze. The main results of joint research with a special international consortium for coordination of similar research on municipal solid waste management – determining the waste composition as function of economic, social, and seasonal changes; assessing future material and contaminant flows, considering different scenarios; quantifying and assessing the material resources and reserves from landfills. The article discusses the educational activities carried out in the high school to implementing modern research results in higher education programs and teaching.