COMPETITIVE ADSORPTION OF CR(VI), K(I) AND NH4(I) IONS ONTO NATURAL ZEOLITES AND BENTONITES
Chromium, ammonium, and potassium compounds are pollutants in the environment released mainly by industrial wastewater and they can negatively influence the quality of surface water. Zeolites and bentonites are commonly used adsorbents for removal of pollutant from water. In the study, the adsorbents were used in their natural form, without chemica...
By Tomáš Bakalár
DEICING REAGENTS IN URBAN ECOSYSTEMS, USING THE EXAMPLE OF MOSCOW
Deicing reagents have an impact on the environment. The composition of the deicing reagents used in Moscow has undergone certain changes. However, the main components of deicing reagents were chlorides, including calcium chloride and (or) sodium chloride. We also conducted research on the effects of sodium chloride and calcium chloride on some urba...
By Olga Victorovna Gladkova, Evgeny Aleksandrovich Gladkov
THERMAL COMFORT DEFINED BY UTCI FOR THE MONTH AUGUST OF 2017 IN THE CITY OF BIJELJINA
Knowledge of the thermal comfort of an area is of increasing importance when planning space, tourism, recreation and the health of the population that lives or is currently located there. Due to the great anthropogenic changes of nature, the temperature is rising, which is expressed especially in urban environments. The impact of temperature rise i...
By Dijana Đurić
RECYCLING OF WASTE SLUDGE FROM WWTP “GORIĆ” VALJEVO USING THE PROCESS OF STABILIZATION AND SOLIDIFICATION
The efficiency of wastewater treatment is not only measured by the quality of treated wastewater, but also by the efficiency of treatment and permanent disposal of sludge that is separated. In addition to harmless, the sludge also contains hazardous substances that are released from wastewater during treatment. This work aims to obtain a neutral an...
By Zoranka Malešević, Milica Đeković-Šević, Mirjana Jovović
ANALYSIS OF THE INFLUENCE OF FRESH ASPHALT MIXTURE TEMPERATURE ON ASPHALT COMPARISON DURING INSTALLATION
When building new roads in BiH, reconstruction or rehabilitation of existing roads, construction or replacement of asphalt layers is a mandatory part of construction works. The lifespan of the entire pavement structure depends on the quality of the final asphalt layers of the pavement structure. One of the most significant characteristics of the as...
By Zahid Bašić, Amir Džananović, Elmedin Tabaković
THE MECHANISM OF THE EFFECTS OF INCREASING THE LENGTH OF THE PILES UNDER LATERAL LOADS IN SAND
In many projects, piles are designed and installed as the ultimate solution in foundation construction, load transition to the resistant subsurface layers, providing lateral resistance, and overcoming the poor performance of surface soils. Pile design should be done with respect to structural consideration, the load-carrying capacity of the surface...
By Karamjavan Abbas Firouzi, Hojjat Hashempour
ENGINEERING GEOLOGICAL AND GEOTECHNICAL CHARACTERISTICS OF LANDSLIDE IN GORNJI HRGOVI, MUNICIPALITY OF SREBRENIK
Natural disasters during May 2014 caused a flood of water outside the unregulated bed of the river Tinja in the local area of Gornji Hrgovi. The flood effect affected the undermining and destruction of the foot part of the slope, reactivation and regressive development of the landslide, which was manifested by further secondary “breaking&rdqu...
By Jasenko Čomić, Aida Hrustić
PALEOZOIC QUARTZITE OF THE SMRČEVICE IN THE CENTRAL BOSNIA
The paper presents results of detailed geological research of quartzite in the wider area of Smrčevice, southeastern of Gornji Vakuf-Uskoplje. Based on the defined boundaries of surface distribution and research results, geological reserves of about 12 million tons have been determined in the wider area of Smrcevica. The quartzite reserves that hav...
By Dževad Forčaković, Rejhana Dervišević
HAULAGE ANALYSIS IN THE AIM OF THE COMBINED SYSTEM APPLICATION ON THE LEAD AND ZINC MINE "SASE" SREBRENICA
One of the most important influencing factors on the economy of mines with surface and underground exploitation is the correct choice of haulage technology of ore and waste.The paper analyzes the haulage of ore and waste in the Lead and Zinc Mine “Sase” Srebrenica and determines the optimal haulage length on the four excavation blocks for the appli...
By Duško Torbica, Vladimir Malbašić, Dražana Tošić, Jovan Popović
CHEMICAL LEACHING OF CONTAMINATED SOIL – CASE STUDY
This study presents results of chemical leaching of contaminated soil from several metallurgically loaded locality of Richnava in Slovakia, applying two chelants – Na2EDTA and Na3EDDS of different molar concentration, done at different leaching conditions. The lower molar concentration (2 mM) of chelants showed comparable effect on Mn, Ni, As...
By Zuzana Danková, Iveta Štyriaková, Ľubica Kovaničová, Katarína Čechovská, Marián Košuth, Jaroslav Šuba, Jarmila Nováková, Patrik Konečný, Ľubomír Tuček, Katarína Žecová, Eva Lenhardtová, Zoltán Németh