Environmental Problems. – 2020. – Vol. 5, No. 4

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https://ena.lpnu.ua/handle/ntb/57783

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, 2020. – Volume 5, number 4. – P. 185–250. : ill.

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Content (Vol. 5, No 4)


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Recent Submissions

Now showing 1 - 8 of 8
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    Urban public transport policy in the conditions of COVID-19
    (Видавництво Львівської політехніки, 2020-10-10) Popovych, Pavlo; Poberezhny, Lubomyr; Shevchuk, Oksana; Vikovych, Ihor; Skyba, Olena; Poberezhna, Lubov; Yasrebov, Taras; West Ukrainian National University; Ivano-Frankivsk National Technical University of Oil and Gas; Lviv Polytechnic National University; Ternopil Ivan Pul’uj National Technical University; Bogomolets National Medical University
    The purpose of the research is formation of passenger transport policy by public transport from the standpoint of determining the level of safety in COVID-19 and passenger comfort with the development of basics for measuring the perception of the most important factors of public transport convenience, minimum discomfort and maximum safety. Methodology. The study was conducted in two stages - inhouse and experimental – the collection and processing of data obtained from the survey of passenger flows. Continuous field research by the tabular method which in comparison with the existing ones is the most time-consuming, but the only one that can provide maximum accuracy of passenger information for further processing of the obtained statistical data of the studied system of public transport. The information obtained by organoleptic means was entered for further processing in the special accounting map, then calculations were performed for traffic areas between the stopping points of each studied route. Findings. The results of field research using the model of discomfort allow us to correctly predict the choice of mode of transport and the behaviour of passengers when using public transport in medium-sized cities. It is proved that the artificial underloading of the vehicle to avoid tight contact of passengers does not affect the level of infection with the virus of COVID-19 and, therefore, this restriction is not appropriate. Conclusions. Formation of the strategy of passengers' transportation in the conditions of COVID-19 is possible only with the use of the characteristic indicators of the transportation of people established by the multi-criteria analysis of a transport network – the level of discomfort, vehicle filling factor, the average time of transportation, the average distance of transportation. It is obligatory to use such means of protection as masks and gloves, provide the enhanced ventilation of the salon, and organize passengers' boarding through the back door with 100 % contactless fare payment.
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    Aerated concrete with the use of ferruginous quartzite processing waste
    (Видавництво Львівської політехніки, 2020-10-10) Malovanyy, Myroslav; Ilyash, Oksana; Povzun, Oleksiy; Kalynychenko, Valeriy; Bylym, Ludmyla; Kasich, Vitaliy; Lviv Polytechnic National University; Yuri Kondratyuk National Polytechnic University of Poltava; Donetsk National Technical University
    Waste (tailings) of mining and processing plants of Kryvbas were studied by the stages of their magnetic enrichment. The granulometric compositions of the tailings, the amount of iron (total and magnetic) and the mass fraction of solid in them are determined. The expediency of disposing of ferruginous quartzite waste at the first stage of enrichment as a silica component in cellular concretes is proved. Optimal compositions of aerated concrete mixtures are determined based on the following criteria: the average density of cellular concrete in the dry state and its compressive strength.
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    Development of detergent recipe with improved environmental characteristics
    (Видавництво Львівської політехніки, 2020-10-10) Slyva, Yuliia; Verenikin, Oleksiy; National University of Life and Environmental Sciences of Ukraine
    The research on the development of an innovative formula of a synthetic detergent with improved environmental properties, which meet the environmental standard of SOU OEM 08.002.12.065:2016 “Detergents and cleaning products. Environmental criteria for life cycle assessment” is carried out. The accumulated theoretical and practical experience is generalized, the general scheme of designing and development of new goods taking into account features of detergents with the improved ecological characteristics is created.
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    Analysis of the Ukrainian cities’ sustainable mobility on the example of Lviv
    (Видавництво Львівської політехніки, 2020-10-10) Barvinska, Khrystyna; Leonova, Sophiya; Barvinska, Yelyzaveta; Lviv Polytechnic National University
    Abstracts. The world tendencies of popularization of ecological elements of sustainable mobility and the results of their introduction in Lviv on the way to sustainable development are considered in the article. Examples of implementation of the Sustainable Mobility Plan in the city in accordance with the set priorities are given: residents, public transport, ecological means of transportation, private transport. The development of infrastructure for individual environmental means of mobility and public transport is analyzed.
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    Clean utilization of municipal solid wastes and alternative fuels derived from it
    (Видавництво Львівської політехніки, 2020-10-10) Topal, Alexander; Holenko, Iryna; Haponych, Luidmyla; Coal Energy Technology Institute of National Academy of Sciences of Ukraine
    For the municipal solid waste (MSW) to be used in a proper way, it is necessary to implement clean technologies capable of thermal treatment of MSW and RDF in order to produce heat and electricity while meeting current ecological requirements. Nowadays, a number of technologies for MSW/RDF thermal treating are being used worldwide. Among them, the most proven technologies, applicable for industrial introduction, have been considered while analyzing their advantages/ disadvantages accounting for local conditions of Ukraine.
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    The assessment of the environmental performance management in Ukrainian airports
    (Видавництво Львівської політехніки, 2020-10-10) Radomska, Margaryta; Mushta, Marina; National Aviation University
    The comparative analysis of the environmental policy and performance of Ukrainian airports was conducted using specially defined parameters. To improve the existing situation we have developed recommendations on the list and content of environmental documents to be developed and implemented at Ukrainian airports, as well as possible regional environmental aspects of airports to be accounted in their policy.
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    Theoretical substantiation of the petroleum hydrocarbons destruction by specific microflora using anaerobic digestate
    (Видавництво Львівської політехніки, 2020-10-10) Ablieieva, Iryna; Sumy State University
    Implementation of the proposed approach to bioremediation of oil-contaminated soils provides an intensification of the hydrocarbons degradation process biologically using a digestate as a bio-stimulant, contributes to the production of an ecologically safe substrate, and excludes its toxicity to living organisms due to the degradation of petroleum hydrocarbons.
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    Assessment of the impact of the paper enterprise on the environment
    (Видавництво Львівської політехніки, 2020-10-10) Khomko, Natalia; Lviv Polytechnic National University
    Pulp and paper enterprises are of great importance for sustainable economic and environmental development of certain regions and the economy of Ukraine. Man uses many natural resources during the lifetime, creating a burden on nature. As the world's population increases, this load increases, leading to a shortage of resources and deterioration in the environment. The main activity of Kokhavynska Paper Mill PJSC is the production of sanitary products for the domestic market and export. Rational use of secondary raw materials helps to cut the use of forest resources and reduce the amount of waste paper utilized in landfills. 15291.76 t of pollutants from the sources of the enterprise emissions enter the air each year. A total of 9 standardized and 3 non-standardized substances (greenhouse gases) are released into the atmosphere, namely nitrogen oxides, carbon monoxide, nitrogen (1) oxide (N2O) (greenhouse gas), carbon dioxide (greenhouse gas), methane (greenhouse gas), iron and its compounds, manganese and its compounds, hexavalent chromium (expressed in terms of chromium trioxide), gaseous fluorides, hydrogen sulfide, saturated hydrocarbons C12-C19. There is no excess of the established maximum concentration limits at all emission sources at this enterprise. To assess the impact of the enterprise on soils, the content of heavy metals Zn, Cr (VI), Co, Cu, Pb, Mn, and Fe at the border of the sanitary protection zone of the enterprise was determined and the maximum multi plicity of the excess of MPC of heavy metals was calculated. The content of heavy metals in the selected soil samples was determined using a spectrophotometer atomic absorption C-115-M1. Evaluation of soils for heavy metals showed that the soils at the border of the sanitary protection zone of the enterprise are contaminated with heavy metals. The maximum multiplicity of the excess of the MPC of heavy metals in the soil is 1.04 times for lead; 0.43 times for zinc; 0.37 times for chromium; 0.93 times for copper; 1.85 times for manganese; 0.35 times for cobalt. Maximum concentrations of heavy metals exceed their background content: 1.6 times for lead; 1.8 times for zinc; 1.16 times for chromium; 0.77 times for copper; 3.9 times for manganese; 9.7 times for iron; 1.2 times for cobalt.