https://sci.ldubgd.edu.ua/jspui/handle/123456789/17834 2026-06-25T12:35:03Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/18634 Title: ПРИСТРІЙ ДЛЯ ВИМІРЮВАННЯ ЛИПКОСТІ ҐРУНТУ: патент на корисну модель Authors: Попович, Василь Васильович; Кучерявий, Володимир Панасович; Скиба, Тетяна Костянтинівна; Бойко, Тарас Володимирович; Дочинець, Василь Васильович; Іляшевич, Михайло Михайлович; Кіт, Остап Юрійович; Кочмар, Ірина Миколаївна; Федів, Ірина Сергіївна; Скробала, Віктор Михайлович 2026-04-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/18633 Title: ПРИСТРІЙ ДЛЯ ВИМІРЮВАННЯ ЩІЛЬНОСТІ ҐРУНТУ: патент на корисну модель Authors: Попович, Василь Васильович; Кучерявий, Володимир Панасович; Скиба, Тетяна Костянтинівна; Бойко, Тарас Володимирович; Дочинець, Василь Васильович; Іляшевич, Михайло Михайлович; Коваль, Володимир Віталійович 2026-04-01T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/18627 Title: Post-reclamation changes in radiation dose equivalent rate and leachate properties: a case study of the Lviv municipal landfill Authors: Bouynk, Abderrahim; Mažeikienė, Aušra; Stepova, Kateryna; Zhorina, Oleksandra; Skyba, Tetiana; Fediv, Iryna Abstract: Reclamation of municipal solid waste landfills is a critical environmental measure aimed at reducing radiological and hydrochemical risks associated with long-term waste disposal. This study evaluates post-reclamation changes in radiation dose equivalent rates and the physicochemical characteristics of raw landfill leachate at the Lviv Municipal Landfill (Ukraine), one of the most environmentally hazardous waste disposal sites in the region. Ambient equivalent dose rates were measured in 2025 at the landfill summit and along the main cardinal directions and compared with pre-reclamation data from 2012. The results indicate a substantial decrease in equivalent dose rate following reclamation measures, with current values ranging from 0.089 to 0.101 µSv/h, remaining well below the regulatory limit of 0.3 µSv/h and significantly lower than pre-reclamation levels of 0.41–0.42 µSv/h. At the same time, pronounced spatial heterogeneity of radiation levels persists, with the highest values recorded in the western sector of the landfill. In parallel, the chemical composition of raw landfill leachate collected from a dedicated leachate accumulation pond was analyzed. This pond receives leachate generated by drainage from the waste body and serves as temporary storage prior to treatment by an on-site reverse osmosis system implemented as part of the landfill reclamation project. The leachate is characterized by extremely high concentrations of ammonium nitrogen (3844 mg/l), chemical oxygen demand (8960 mg O₂/l), chlorides (4000 mg/l), phosphates (88 mg/l), and total dissolved solids (14,625 mg/l), indicating severe organic and mineral contamination typical of mature landfill leachate. The results demonstrate that, despite the effectiveness of reclamation measures in mitigating radiological hazards, the generation of highly concentrated raw leachate remains a significant environmental challenge. The chemical composition of the leachate clearly confirms the necessity of its advanced treatment, which provides a scientific justification for the implementation of a reverse osmosis-based leachate treatment system at the landfill. The findings emphasize the importance of continuous monitoring of both radiation dose equivalent rate and leachate quality to ensure long-term environmental safety during and after landfill reclamation. 2026-05-05T00:00:00Z https://sci.ldubgd.edu.ua/jspui/handle/123456789/18626 Title: ECOLOGICAL ASSESSMENT OF HEAVY METAL CONTAMINATION OF SOILS AND PLANTS IN THE IMPACT ZONE OF LANDFILLS Authors: Skyba, Tetiana; Popovych, Vasyl; Shapoval, Pavlo; Telak, Oksana Abstract: The article presents the results of a comprehensive environmental study of the impact of municipal waste landfills on s oil and vegetation in the Ternopil and Khmelnytskyi regions of Ukraine. The objects of the study involved four landfills located near the villages of Malashivtsi, Dunayivtsi, Kremenets, and Khmelnytskyi. X-ray fluorescence analysis of soil and plant samples was conducted to a ssess the level of contamination. Concentration coefficients, integral pollution indic es (Zc), and bioaccumulation coefficients of heavy metals in the soilplant system were calculated. Higher concentrations of Fe, Cu, Zn, Pb, Sr, and Mn were detected in the soils, exceeding both background values and MPCs, indicating a significant man-made impact of landfills. The highest pollution coefficients were recorded at Khmelnytskyi and Dunayivtsi landfills. The high capacity of plants for biological accumulation of Cu, Mn, Zn and Sr was revealed, which poses a potential danger of toxicant transfer to the biosphere. The active dynamics of vertical migration of elements in the soil profile was established. The obtained results emphasize the need for systematic environmental monitoring, improvement of waste management technologies and implementation of landfill reclamation measures to reduce the anthropogenic impact on the environment. 2026-01-01T00:00:00Z