Environmental Problems

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Author: search.filters.author.Rigas, TetyanaHas files: Yes

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    Modeling and forecasting of the state of the environment in the waste management and management system consumption of Kremenchuk urban territorial community in Wartim
    (Видавництво Львівської політехніки, 2023-02-28) Titova, Anna; Kharlamova, Olena; Shmandiy, Volodymyr; Bezdeneznych, Lilija; Rigas, Tetyana; Kremenchuk Mykhailo Ostrohradsky National University
    We consider waste management and management as an area of ​​ecological safety. As a result of the study, the ecological aspects of this branch of activity were analyzed on the example of the operation of the operating MSW landfill in the city of Kremenchuk. The prospective direction of the field of waste management in the region, as well as the state of its financing, are taken into account. Such dangerous factors in the operation of the municipal landfill for the environment as: pollution of groundwater and open dumps of the landfill have been identified. The chemical composition of the leachate formed in the body of the landfill was evaluated and the concentrations of pollutants were compared with the permissible values ​​in wastewater discharged to the city sewer. Priority measures for landfill reclamation were proposed. We analyzed solid household waste landfills from the point of view of resource-energy saving, as an alternative source of energy thanks to the use of generated biogas, as well as extracted secondary resources.
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    Improvement of the ecological safety of road transport in the use of alternative fuel and exhaust converters
    (Lviv Politechnic Publishing House, 2017-03-21) Shmandiy, Volodymyr; Kharlamova, Olena; Rigas, Tetyana; Kremenchuk Mykhailo Ostohradskyi National University
    The aim of the research was to reduce ecological danger caused by vehicles through the use of combined fuel and improved designs converters of exhaust gases. The use of obsolete structures of a catalytic analyzer on cars and the provision of periodic purging of catalytic units can significantly reduce soot emissions without making changes to the design of the engine. It was established that the use of a mixture of diesel fuel with biofuels (made involving waste) reduces the toxicity of exhaust gases by 30–35 % and saves hydrocarbons.