Environmental Problems. – 2021. – Vol. 6, No. 2

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Науковий журнал

Засновник і видавець Національний університет «Львівська політехніка». Виходить двічі на рік з 2016 року.

Environmental Problems = Екологічні проблеми : [науковий журнал] / Lviv Polytechnic National University ; [editor-in-chief M. Malovanyy]. – Lviv : Lviv Politechnic Publishing House, 2021. – Volume 6, number 2. – Р. 59–126. : ill.

Зміст


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Content (Vol. 6, No 2)


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Recent Submissions

Now showing 1 - 11 of 11
  • Item
    Application of slag from thermal power plant for the production of porous filler
    (Видавництво Львівської політехніки, 2021-06-01) Mitin, Ihor; Kindzera, Diana; Atamanyuk, Volodymyr; Lviv Polytechnic National University
    The article is devoted to obtaining a porous filler from the slag of the Thermal Power Plant and investigation of the filtration method for the drying of slag and clay as main raw materials for preparing the charge for porous filler production. The possibility of using TPP slag as the raw material for the production of porous filler has been proved. The main benefits of using such wastes in the production process are environmental protection, conservation of raw resources for the production of finished products. According to the results of the research, insignificant values of the pressure drop confirm the application feasibility of the filtration drying as an energysaving method of the drying of slag and clay for preparing the charge for porous filler production. The influence of the temperature of the drying agent in the range from 313 to 373K on kinetic during filtration drying of slag and clay has been established. Obtained results are useful for the organization and intensification of the filtration drying process of slag and clay as the preliminary stage at the porous fillers production line. The qualitative new porous filler with the bulk density of 230 kg/m3 , the specific heat of 0.82 kJ/kg∙K, the thermal conductivity of 0.067 W/m∙K and compressive strength of 27.7 MPa has been obtained which can be used for the production of lightweight concretes.
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    Dendroindication of petroleum soil contamination
    (Видавництво Львівської політехніки, 2021-06-01) Poberezhna, Liubov; Karavanovych, Khrystyna; Krekhovetska, Iryna; Ivano-Frankivsk National Technical University of Oil and Gas
    The main approaches to the detection of soil contamination by petroleum products using bioindication were analyzed. Necrosis of leaves of woody plants near sludge accumulators was recorded. To assess the possibility of dendroindication of soil contamination, 3 species of trees distributed on the territory of Bytkiv-Babchensky oil and gas field were selected. According to the results of the FisherSnedekor test, the influence of the concentration of oil products in the soil on the necrosis of tree leaves was confirmed, which confirms the possibility of using a dentroindication to detect soil contamination with oil products.
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    Increasing the level of environmental safety of drilling sludge storages
    (Видавництво Львівської політехніки, 2021-06-01) Poberezhny, Liubomyr; Karavanovych, Khrystyna; Chupa, Volodymyr; Rybaruk, Rostyslav; Ivano-Frankivsk National Technical University of Oil and Gas
    The main sources of soil pollution due to the development of oil and gas fields are analyzed. It is shown that the main sources of oil products entering the soil are sludge accumulators and drilling barns. A new construction of a drilling barn and a scheme of reclamation of the existing ones are proposed. The implementation of such developments will minimize the ingress of oil-containing fluids into the soil and increase the level of environmental safety of oil and gas development processes.
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    Life and scientific priorities of professor Oleg Nahursky
    (Видавництво Львівської політехніки, 2021-06-01) Vasiichuk, Viktor; Vytrykush, Nataliya; Lviv Polytechnic National University
    Stages of professional formation and scientific researches of Professor Oleg Nagursky – higher education, scientific degrees and professional experience are described in the article. The main results of scientific researches and possibilities of their practical application are presented.
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    Russian armed aggression against Ukraine – the impact on the environment of the temporarily occupied territories
    (Видавництво Львівської політехніки, 2021-06-01) Malovanyy, Myroslav; Bohach, Nataliia; Lviv Polytechnic National University
    The armed aggression of the Russian Federation against Ukraine, which has been going on since 2014, caused severe consequences for our state. Besides killing and injuring dozens of thousands of Ukrainian citizens, expelling hundreds of thousands of people from their homes, seizing and destroying infrastructure, Russia has inflicted large-scale environmental damage in the occupied territories. Thus, as a result of the occupation of Crimea, the situation with fresh water on the peninsula is rapidly deteriorating, which can significantly change the ecosystem in the future. In addition, the warfare launched by the aggressor against Ukraine in the Donetsk and Luhansk regions caused serious environmental and man-made consequences, among which the main are pollution of groundwater and surface water, flooding of mines, subsidence, air pollution, destruction of agricultural lands, destruction and damage of nature reserves, forest fires, etc. Ignoring the environmental threats caused by Russian armed aggression can lead to catastrophic aftermath in the future. To prevent this scenario, an effective response is needed not only from Ukraine but also from the entire international community.
  • Item
    Requirements for the environmental protection officer of the Ukrainian armed forces in view of NATO guidance documents
    (Видавництво Львівської політехніки, 2021-06-01) Orel, Serhiy; Durach, Vadim; Sjoma, Bohdan; Hetman Petro Sahaydachnyi National Army
    Military impact on the environment can be defined as two components: 1) impact on the environment in time of daily activities during the training of troops and 2) impact on the environment during the combat operation. In the Armed Forces of Ukraine, to some extent, environmental security measures are implemented only during daily operations in peacetime. As for taking into account the impact of fighting on the environment in time of planning combat operations, this issue is usually not even raised in their preparation. On the other hand, NATO member states understand that military operations can be inherently destructive to human health and the environment. Therefore, this study was conducted to determine the educational requirements for commanders, especially for officers who provide environmental protection in the Armed Forces of Ukraine, based on NATO regulations and the experience of Allies. The article considers how environmental issues are integrated into the military operation at each stage: planning, predeployment, deployment (execution and force rotation), redeployment, and post-deployment. The main tasks of environmental officers at each stage of the operation are defined. Based on the tasks solved by officers, the requirements for their education are formed, the subjects studied by US environmental officers are considered.
  • Item
    Features of adsorption processes for wastewater treatment from zinc ions
    (Видавництво Львівської політехніки, 2021-06-01) Petrushka, Ihor; Bratus, Oksana; Petrushka, Kateryna; Lviv Polytechnic National University
    The results of adsorption properties of complex natural sorbents in relation to the neutralization of zinc ions from wastewater are presented. The adsorption isotherm of Zn2+ ions on complex sorbents (clinoptilolite-shungite) (1:1) according to Langmuir and Freundlich models is constructed, the type of adsorption isotherms according to S. Brunauer classification is established. The value of the maximum sorption capacity of Gmax complex sorbents for Zn2+ ions is calculated. The peculiarities of the sorption process of zinc ions with the formation of a monomolecular layer based on the calculated coefficients of the Langmuir and Freundlich were found. The optimal conditions for the dependence of the degree of absorption of Zn2+ ions by complex sorbents on the duration of the sorption process are determined. The ratio “solid (complex sorbent) – liquid” was determined experimentally.
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    Irrigative assessment of Sasyk water quality
    (Видавництво Львівської політехніки, 2021-06-01) Yurasov, Serhii; Kuzmina, Viktoriia; Karaulov, Vitalii; Odessa State Environmental Uuniversity; State Ecological Inspectorate of the South-Western District Academy
    The article is dedicated to the problem of artificial Lake Sasyk which was transformed from a salty water estuary into a freshwater reservoir at the expense of the Danube waters. In the first decades, the irrigative water conditions were not achieved due to the arrival of salts from the bottom sediments. Currently, the water quality formation process in Lake Sasyk has stabilized, but the problem of land irrigation remains urgent. The article gives an irrigation assessment of the quality of the Sasyk reservoir according to various methods considering observations in the HPS-2 region from 2007 to 2017. A detailed typification of irrigation waters based on Alekin O. A. water typing is proposed. It was found that mineralization and the content of sodium and magnesium ions in the Sasyk waters promote salinization and alkalinization of soils. For the safe use of this water for irrigation, both chemical reclamation and dilution with water are necessary.
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    Contents
    (Видавництво Львівської політехніки, 2021-06-01)
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    Experimental research of parameters of industrial waters of canning plant and bakery. Analysis of treatment technologies
    (Видавництво Львівської політехніки, 2021-06-01) Havryshko, Marianna; Popovych, Olena; Yaremko, Halyna; Lviv Polytechnic National University
    One of the industries that uses large amounts of water is the food industry. Industrial, domestic managers of the production process stand out with it and enter the environment surrounded by contaminated effluents. Their main feature is the high content of dissolved organic matter and nitrogen. You can also create wall water to create aggregate-resistant colloids, which include animal and vegetable fats, proteins, starch, sugar, as well as salts, carbohydrates, dyes, thickeners, preservatives. As a result of the technology of treatment of such industrial effluents, is a combination of different technologies and methods of treatment and the creation of several units depending on the parameters of wastewater. The purpose of our work is: 1) Analysis of physical and chemical indicators of industrial waters of food industry enterprises, monitoring of their impact on the environment; 2) to outline perspective directions of technologies of industrial water purification and creation of closed water circulation systems.
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    Bioelectric parameters of Pinus silvestris forest ecosystems
    (Видавництво Львівської політехніки, 2021-06-01) Rusyn, Iryna; Dyachok, Vasil; Lviv Polytechnic National University
    The article presents the study of the bioelectric potential of forest biotopes of Pinus silvestris to evaluate the possibility of their usage as a bioelectricity source. The increase of bioelectric potential in dry soils independent of moisture level was revealed. The positive effect of soil humidity on the generation of bioelectric potential was shown. Insignificant daily and seasonal fluctuations of bioelectric parameters of forest biotopes open their prospects as an important source of renewable energy.