In this research, the resulsts of bentonite characterization by XRF before and after adsorption are presented. The influence of temperature and pH on the capacity and efficiency of adsoption of lead (II) ions using bentonite is determined by adsorption experiments for initial lead (II) concentrations of 200, 300 and 400 mg/L, adsorbent dosage of 1 ...

By Amna Karić, Amra Odobašić, Edisa Papraćanin, Azra Halilović

The work aims to design a pyrophyllite-modified carbon paste electrode for pesticide detectionin aqueous solutions. The structural and morphological characterization of naturalpyrophyllite clay for Parsovići mine, Bosnia and Herzegovina, and mechanically modifiedpyrophyllite was performed using X-ray diffraction analysis (XRD), scanning electronmic...

By Jasmina Grbović- Novaković, Anđela Mitrović_Rajić, Katarina Tošić, Sara Mijaković, Sanja Milošević-Govedarović, Ana Vujačić-Nikezić, Bojana Paskaš-Mamula, Jasmina Kustura, Enita Kurtanović, Belma Halilhodžić

Pollution of the environment with heavy metals is one of the greatest contemporary problems. Pyrophyllite is a hydrous aluminum silicate, with a wide variety of applications due to its high melting point and stable chemical properties. This study aims to examine the sorption properties of the mechanochemically activated pyrophyllite for the removal...

By Tatjana M. Trtić-Petrović, Dajana Lazarević, Irena Pušica, Jasmina Kustura, Belma Halilhodžić, Enita Kurtanović, Adnan Teletović, Atif Hodzić, Muhamed Harbinja

Occupational safety is a very important factor in the process of creating a safe work environment.The benefits employers, employees and even the state as a whole can reap greatly depend on theway occupational safety is organized and implemented. This paper aims to make a general analysisof the condition of safety at work in Bosnia and Herzegovina, ...

By Miliša Todorović, Asmir Helvida, Snežana Živković

This paper describes the process of degradation of the structure of the inlet header of the intermediate reheater (MPr) 2 input header at the boiler of Unit 7 of the Thermal Power Plant Kakanj, determined on the basis of tests of replicas and hardness at characteristic places of the header. Headers, with minor delays, have been in co...

By Armin Husika, Belma Fakić, Milenko Rimac

In this paper, C45 medium carbon tool steel was investigated after various heat treatments. The thermal properties, specifically thermal diffusivity and thermal conductivity, were measured and also the microstructure analysis was done on a light microscope. Heat treatment of the samples included: 1) the normalization heat treatment a...

By Uroš Stamenković, Ivana Marković, Srba Mladenović, Dragan Manasijević, Ljubiša Balanović, Avram Kovačević, Milan Nedeljković, Jovana Božinović

The mechanical properties and microstructure of copper base shape memory alloys are relatively well known, while data on thermal properties (thermal conductivity, specific heat, and temperature conductivity) are not available. In the frame of our investigation work thermal properties of rapidly solidified Cu-Al-Ni-Mn alloy were deter...

By Borut Kosec, Blaž Karpe, Milan Bizjak, Ladislav Vrsalović, Diana Ćubela, Mirko Gojić, Ivana Ivanić, Stjepan Kožuh

Three new neutral complexes of copper(II) containing chalcone ligands derived from 2'-hydoxyacetophenone and 4-substituted benzaldehydes were synthesized. Complexes were preparedby solution synthesis and characterized by spectroscopy. The catalytic activity of complexes wasexamined in the reaction of 3,5-di-test-butyl catechol (DTBC) oxidation. The...

By Selma Hadžalić, Irnesa Osmaković, Adnan Zahirović

Pyrophyllite (Al2Si4O10(OH)2) is a layered phyllosilicate mineral with a basic 2:1 crystal structure,consisting of an aluminum octahedral layer placed between two silicon tetrahedral layers (T-O-T),connected by weak Van der Waals forces, which results in easy structural disruption. Naturalpyrophyllite has an electroneutral surface, which causes a h...

By Jasmina Kustura, Belma Halilhodžić, Enita Kurtanović, Kenan Kozlo, Amra Čizmić, Adnan Teletović, Atif Hodžić, Muhamed Harbinja

Leachate water from sanitary landfills represents one of the most complex global environmentalproblems. This paper examines the possibility of using aluminosilicate material, pyrophyllite, fromthe Parsovići deposit, as an adsorbent. It was researched the influence of two granulations ofpyrophyllite (0-53 μm and 0-100 μm) on the degree of adso...

By Jasmina Kustura, Belma Halilhodžić, Enita Kurtanović, Amra Čizmić, Kenan Kozlo, Adnan Teletović, Atif Hodzić, Muhamed Harbinja