GEOLOGICAL AND ECONOMIC ASSESMENT OF THE PERSPECTIVE OF THE MINING IN LJUBIJA ORE REGION
The iron ore of the Ljubija ore region for decades has a very great impact on the overall social reproduction in the area of the city of Prijedor, RS, BiH, which is clearly connected with the constant renewal and intensification of the production process. We have systematic geological explorations last over 135 years and exploitation with certain i...
By Ranko Cvijić, Aleksej Milošević, Miodrag Čelebić, Žarko Kovačević
STUDY OF Cu(II) ADSORPTION BY BENTONITE AND FOLLOWING REGENERATION BY BIOLEACHING
The natural bentonite and bentonite/iron oxide composite were used as sorbents of Cu(II). Their sorption properties were examined under the different conditions such as pH of the solution, initial metal ion concentration. The bentonite removed 71 % Cu(II) while composite 90 %. Their maximum adsorption capacities were 34.1 and 44.4 mg Cu(II) g -1, r...
By Zuzana Danková, Zuzana Dakos, Iveta Štyriaková, Alexandra Bekényiová
BENTONITE/IRON OXIDE MAGNETIC COMPOSITES: CHARACTERIZATION AND APPLICATION AS Pb(II) ADSORBENTS
The natural clay bentonite (B) as adsorbent of lead cations was studied. To enhance its adsorption capacity, the coating by iron oxide particles, in two selected weight ratios: 2:1 (BM1) and 4:1(BM2), was used. The changes of the textural and surface parameters after the modification were studied by the low temperature nitrogen adsorption, XRD and ...
By Zuzana Danková, Erika Fedorová, Alexandra Bekényiová
DANGERS AND HAZARDS AT WORK IN AREAS JEOPARDISED BY AN EXPLOSIVE ATMOSPHERE
The term "explosive atmosphere" is frequently encountered in industry. Typically hazardous areas are found in chemical plants, refineries, paint and varnish workshops, plants for goods grinding, in the storages of combustible gas, liquids and solid substances. In such hazardous areas we must always pay attention to all normal but also abnormal work...
By Nebojša Knežević
ZERO STATE OF AIR QUALITY IN THE AREA OF FUTURE FACTORY R-S SILICON IN MRKONJIĆ GRAD
Air quality measurement was conducted in the vicinity of the industrial plot that belongs to RS Silicon LLC Mrkonjić Grad where a plant for the production of the silicon metal is constructed, during the period January – December 2015; this air quality measurement comprised the immissions concentrations of CO, SO2, NO2 and total suspended particles ...
By Dušica Pešević, Nebojša Knežević
STRATEGIC ORIENTATION TO SOLAR ENERGY PRODUCTIONAND LONG TERM FINANCIAL BENEFITS
The strategy for developing and improving the application of green, clean, renewable and gratis solar energy is a challenge for multidisciplinary teams of scientists. Exquisite examples of positive world practice of the largest solar power plants are presented in this paper, with all the characteristics, starting from the materials of photovoltaic ...
By S. Ivan Stevović
CHROMIUM AND NICKEL IN SOIL IN THE WIDER MAGLAJ AREA – CONCENTRATION AND GENESIS
Research on potentially toxic elements chromium and nickel and laboratory testing of their concentrations was carried out in the wider area of Maglaj, with the aim to detect and determine their quantities, which gave basis for discussion about origins of these pollutants in soil. Field and laboratory observations included 45 soil samples, taken by ...
By Elvir Babajić, Alisa Babajić, Željka Stjepić Srkalović, Dado Srkalović, Samir Ustalić, Husnija Akmadžić
THE ORIGIN OF MAGNESIUM IN THE GROUNDWATERS OF NORTHEASTERN BOSNIA
The paper is based on 237 chemical analysis of groundwater, where the determination of magnesium origin in groundwatersof northeastern Bosnia were performed. The determination of magnesium origin in groundwaterswere carried through on the basis of Mandel & Shiftan classification. Based on the a distribution map of Mg2+ ions in groundwaters in n...
By Dado Srkalović
LEAD (Pb) CONCENTRATIONS IN SOIL OF TUZLA'S URBAN AREA
The paper presents the results of the geochemical-pedological researches based on the lead concentrations in soil of the Tuzla's urban area. The main goal of the research was to determine to what extent, the urban area of Tuzla was contaminated by lead and to determine the pollutant origin. The 129 soil samples were collected in situ on the of area...
By Željka Stjepić Srkalović, Dado Srkalović, Elvir Babajić, Senad Gutić, Alisa Babajić
GEOTECHNICAL CHARACTERISTICS OF THE TERRAIN AND CALCULATION OF BEARING CAPACITY FOR BRIDGE No. 3 OF MOTORWAY TARCIN – KONJIC
In paper is given overview on geotechnical characteristics of the terrain on location of a bridge number 3, on highway Tarcin – Konjic. Complexity of geological structure, in near surface where it consists from sediments of weathering crust to depth of around 30,0 m, as well as in substrate that consists of sediments of clayey debris, determined th...
By Zlatan Talić, Edis Softić, Nerma Duraković, Dino Čustović