The changes in pH and conductivity during the rinsing of the pumpkin peel, and the biosorption of Cu2+ ions, were the subject of this work. The obtained data showed that the pH value of the solutions increased during the rinsing of the biosorbent, as a result of the transfer of H+ ions from the aqueous phase into the structure of the pumpkin peel. ...

By Marina Marković, Milan Gorgievski, Miljan Marković, Vesna Grekulović, Nada Štrbac, Milica Zdravković, Kristina Božinović

Fillers play a crucial role in enhancing product performance and reducing production costs. To be used in various industries, fillers must be readily available, affordable, pure, non-toxic, and meet specific physical and chemical standards. This study examines limestone and dolomite fillers, focusing on their chemical composition, mineralogical pro...

By Nedzad Haracic, Nevzet Merdić, Ilhan Bušatlić, Nadira Bušatlić, Adelina Pašalić

Ferrochrome slag is a by-product of ferrochrome alloy production, which is an important component of stainless steel.  The total production of ferrochrome slag, which increases significantly every year with the increase in stainless steel production, is more than 1.1-1.5 times higher than the production of ferrochrome metal. In order to conser...

By Akın Odabaşı, Gökhan Başman, Tuğçe Ergül, Cengiz Yaşin, Hülya Kaftelen Odabaşı

Specific environmental conditions, such as marine environments, often influence steel applications in marine industries. These conditions are commonly simulated using a NaCl solution in order to simplify the study and eliminate the complexities of seawater's chemical and biological variability. In this study, 42CrMo4 steel samples, a widely utilize...

By Stanica Nedović, Ana Alil, Sanja Martinović, Tatjana Volkov Husović

The Cu-Al-Zn alloy is used as a functional material in industry, and also as a biomaterial. These alloys have excellent electrical properties, good thermal conductivity, and can also be used for biomedical purposes.The basic characteristic of alloys that remember their shape is their independent return to some of their remembered shape when the tem...

By Safija Herenda, Merima Begović, Edhem Hasković, Vanja Asanović

NdFeB (Neodymium-Iron-Boron) magnets are essential for technologies such as electric vehicles, wind turbines, and medical devices due to their high energy density. However, the growing demand for these magnets, coupled with the limited availability of rare earth elements (REEs), emphasizes the need for efficient recycling of end-of-life (EOL) NdFeB...

By Anıl Umut Özdemir, Umay Çınarlı Yavaş, Taner Akbay, Ahmet Turan

X-ray diffraction is a crucial method for characterizing crystalline materials, widely employed in the analysis of both products and raw materials in the cement industry, including clinker, cement, and limestone. Quantitative phase analysis via X-ray diffraction necessitates sophisticated computational tools to accurately interpret diffraction patt...

By Marina Jovanović, Adnan Mujkanovic, Nevzet Merdic, Nedžad Haračić, Vinko Baranašić

For die industry where future products have decisive roles for material selection, subject of steel is an area of ​​interest with high potential for innovation. With new production technologies that prioritize knowledge, the quality of materials has improved significantly and these developments continue. Material selection in die design is an impor...

By Aslan UNAL

The aim of the research conducted in this paper is to analyze the cadmium content in particulate matter PM10 for the period of 2020–2024, and thereby provide a realistic assessment of whether there has been a significant reduction in cadmium emissions into the atmosphere of Zenica due to the replacement of fossil fuels for the city’s he...

By Farzet Bikić, Halim Prcanović, Mirnes Duraković, Naida Bikić, Sanela Beganović

Public demand for environmentally friendly solutions for new types of cement with reduced CO₂ emissions is increasing. Consequently, new types of cement must be developed and introduced to the market. This paper presents test results for cement formulations based on calcium fly ash and marly limestone, following the EN 197-5 standard. The clinker c...

By Nevzet Merdić, Nedžad Haračić, Ilhan Bušatlić, Nadira Bušatlić, Nedžib Kobilica