GeoScience Engineering. 2025, vol. 71
Permanent URI for this collectionhttp://hdl.handle.net/10084/158013
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Item type: Item , Necessity of Landfilling - Impact on the Environment Today(Vysoká škola báňská - Technická univerzita Ostrava, 2025) Vaľo, Andrej; Jurík, Norbert; Lapčík, Martin; Lapčík, VladimírThe future of waste disposal, which represents a major ecological and environmental problem in Europe and its individual countries, is still not solved in any effective way. Landfilling is directly related to the waste management programs of individual countries of the European Union, which mainly strive to mitigate the impact of waste on the environment. Improper handling of waste poses a threat to all components of the environment, therefore proper handling and subsequent processing is essentiaItem type: Item , Environmental Impacts of Warehouse Complexes: Analysis of Their Influence on Landscape and the Environment(Vysoká škola báňská - Technická univerzita Ostrava, 2025) Jurík, Norbert; Vaľo, Andrej; Lapčík, Martin; Lapčík, VladimírThis article analyses the environmental impacts arising from the construction and operation of warehouse complexes and their effects on the landscape and the environment. Warehouse complexes are a key component of the logistics chain in modern industry, but their construction and operation can significantly negatively affect the surrounding environment. The article examines various aspects of these impacts, including land occupation, changes in landscape, emissions, and waste management. It discusses options for prevention, elimination, and compensation of negative effects, as well as current legislative and methodological approaches to assessing the environmental impact of warehouse complexes. The aim of the article is to provide a comprehensive view of the issue and identify potential measures to mitigate the environmental impacts of warehouse complexes.Item type: Item , Numerical Simulation of Added Mass Force and Pressure Gradient Force to Predict the Deposition Process of Particles and the Distribution of Water Velocities in Sewerage Pipelines(Vysoká škola báňská - Technická univerzita Ostrava, 2025) Merrouchi, Farida; Fourar, Ali; Massouh, Fawaz; Lakhdari, Somia; Zeroual, AbdelatifThe dispersion and deposition of solid particles in turbulent flows within sewer networks were numerically analyzed. Given the high density ratio between solid particles and water (greater than 0.1), observed in the semi-arid regions of Algeria, the added mass forces and pressure gradient were integrated into the particle motion equation. A coupled Euler-Lagrange approach, based on the 𝑘-𝜔-𝑆𝑆𝑇 turbulence model and the Discrete Random Walk (DRW) model, was used to simulate fluid flow and particle transport, as well as their interaction with turbulence. The pressure gradients from the numerical simulations of turbulent flow were compared with experimental data from the Dyn- Fluid laboratory at ENSAM Paris, showing excellent agreement. The simulations revealed that pressure drop increases with particle size and higher flow velocities. They also showed that particle deposition rates correspond to known deposition zones in sewer networks, and that an increase in water velocity reduces particle deposition, in line with scientific literature.