Environmental Problems

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Subject: search.filters.subject.biodegradation

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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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    System approach to the assessment of anthropogenic impact on marine ecosystems during oil production activities
    (Lviv Politechnic Publishing House, 2018-10-26) Plyatsuk, Leonid; Ablieieva, Iryna; Gabbasova, Sabina; Mamutova, Alua; Sumy State University; Al-Farabi Kazakh National University
    The system of quality categories, integrated and single indicators was created for the marine ecosystem under the impact of oil production. On the basis of the integral differential approach, a significant and moderate degree of influence has been substantiated for the stages of drilling the well and extracting oil, as well as an insignificant impact for seismic exploration and decommissioning.