Battery electric vehicles (BEVs) are being considered as a replacement technology for diesel vehicles in underground mining of mineral resources. However, many issues related to BEVs in industrial applications still require more detailed research. One significant topic is the heat load—BEVs' heat emission into the working environment during regular operation. This paper provides an overview of the thermal behavior of NMC and LFP Li-ion cells tested under various conditions, which is an important step in determining the overall heat load of BEVs. The surface temperature of three NMC and one LFP 18650 Li-ion cells was monitored during charging and discharging at four different rates, at constant ambient temperatures of 30 °C and 40 °C. The main results pertain to the cell's thermal behavior during charging and discharging, highlighting the distinctive temperature profiles of NMC and LFP cells.

Advancements in computer capabilities enable predicting process outcomes that earlier could only be assessed after post-process analyses. In aerospace and automotive industries it is important to predict parts properties before their formation from liquid alloys. In this work, the logistic function was used to predict the evaporation rates of the most detrimental impurities, if the temperature of the liquid aluminum alloy was known. Then, parameters of the logistic function were used to determine the transition points where the reaction order was changing. Samples were heated to 610 °C, 660 °C, 710 °C, and 760 °C for one hour, after which the chemical analyses were performed and evaporation rates were calculated for Cd, Hg, Pb and Zn elements. The pressure inside the encapsulated area was maintained at 0.97 kPa. Whereas parameters that define the evaporation rate increase with the temperature increase, the maximum evaporation rates were deduced from the experimental data and fitted into the logistic function. The elemental evaporation in liquid-aluminum alloys is the best defined by the logistic function, since transitions from the first to zero-order-governed evaporation reactions have nonsymmetrical evaporation rate slopes between the lowest and the highest evaporation rate point.

The designing and spatial planning of areas affected by instability at the open pits represents an analysis of all conditional factors that create a potential representation of a wider area. The specificities that characterize the conditions on the field, created after the instabilities had occurred, require research which along with the calculation results presents a starting point for further design. The terrain leveling, shaping of the slopes and depressions of the open pit, are interpreted based on geological structure, engineering - technical conditions of the work environment, disposition of the existing objects, junctions of the mining area, environmental conditions and factors which add to the stability of the future area. The inclines and slope geometry are defined by the law as well as by the intended purposes of the areas that are to be planned. The entire area survey for the purpose of its planning should be regarded as a whole which requires the project solutions from multiple technical areas for the purpose of functional area planning. The technological solutions of terrain modeling, taking into consideration the analysis of foundation the acquired results, including the experiences of applied procedures from the subject area, undoubtedly demands synchronization with the technical, technological and capacitive capabilities in a particular case. The definition of technological solutions must be based on the principles of environment preservation.

Remediating and recovering valuable metals from metallurgical slags is a critical challenge and opportunity for sustainable resource management in the metal extraction industry. This study investigates a process to simultaneously recover nickel, copper, and cobalt from nickel converter slag from the Sudbury region, Canada, using carbon- and iron-based reducing agents. Experimental results show that, without additives, performing reduction settling at 1300 °C, a process similar to metal extraction from ore concentrates, yielded 62 wt% recovery of valuable metals, while after adding reducing additives, over 90% of entrained valuable metals were efficiently coalesced into a matte phase within one hour, significantly reducing the hazardous metal content in the residual slag leaving mainly iron and silicon oxides, which are stable and environmentally benign. X-ray diffraction and SEM-EDS analyses show that after treatment, the dominant phases in the residual slag are fayalite (Fe₂SiO₄) and glassy silicates, with almost no detectable sulfide or metallic inclusions or other leachable metal-bearing phases. Estimated total cost to increase and maintain slag temperature at 1300 °C for 1 h is $44.50 per tonne. The exothermic reaction of ferrosilicon with slag provides 14.60 kWh/tonne of energy, reducing the need for external heating, while the value of recovered metals is about 10 times higher than the estimated capital, processing, and transportation costs of the additional process treatment. An efficient and sustainable approach to recovering valuable metals from nickel slag, using innovative chemistry and process integration, delivered high metal recovery, reduced environmental impact, and clear economic benefits. The proposed approach aligns with the United Nations Sustainable Development Goals, as outlined in the document ‘Transforming Our World: the 2030 Agenda’, supports circular economy principles, enhances resource efficiency, and offers a practical pathway for remediating legacy slag deposits in existing metals extraction facilities.

The surface exploitation of mineral raw materials is realized in the natural environment, causing the degradation of the narrower and wider space: the change of the physical appearance of the terrain and the degradation of the soil and autochthonous vegetation cover. The recultivation of the surface mine area, after the exploitation of mineral raw materials, is an important and mandatory measure in the function of environmental protection. In a biologically empty space, with damaged or destroyed natural content, in parallel with the slow and long-lasting process of spontaneous self-revitalization, technical and biological reclamation measures and procedures are applied to control and accelerate the revitalization process.The subject of this work is the design of reclamation on the surfaces affected by the exploitation of clay, on the example of the Garajevac Istok surface mine near Novi Bečej, with the aim of creating habitats for plant and animal life. The planned goals of the reclamation of the post-exploitation area of the Garajevac Istok surface mine will be realized by applying a combination of afforestation measures and spontaneous self-reclamation.

The expulsion of coal as a strategic energy source is expressed in many European countries. It is indisputable that energy planning must take into account environmental and economic goals. Governments and policymakers must implement energy sustainability in a balanced manner and provide an opportunity for energy security to be achieved in continuity. This means that the relationship between energy, the environment and the economy must be objectively harmonized. Intersectoral analysis is precisely the tool that enables such perception. The paper only analyzes in one part, by applying cross-sectoral analysis, the relationship between some pollutants generated in the production process of the Thermal Power Plants Nikola Tesla (TPPNT) and open-pit lignite mines at the Kolubara coal mine, and production results in the production part of the Public Enterprise "Electric Power Industry of Serbia".