Analysis of organic pollutants in water samples of White Drin, Black Drin and Fierza Reservoir
This study presented data about concentrations of some organic pollutants inAlbanian part of Black Drin (BD), White Drin (WD) and Fierza Reservoir (FR).Thirteen stations were analyzed in this study. Sampling of water was realized inMay 2017. Drin River presents important aquatic area in Albania. For all watersamples were analyzed organochlorine pes...
By Aurel Nuro, Elda Marku, Bledar Murtaj
Determination of some physical-chemical properties of biofortification soft wheat and flour of the varieties “Treska”
Cereal crops as a basic food for humans, little is used as a grain, but with millingthey are processed in the milling products: flour, meal, flakes and bran.Determining the content of some ingredients, such as protein, ash, wet gluten,fat, etc. in food products is important because they are present in the rawmaterials and final products. The import...
By Marija Menkinoska, Vinko Stanoev, Valentina Pavlova, Tatijana Blazevska, Victorija Stamatovska, Natasa Gjorgovska
Air-thermal oxidation of zirconium
Zirconium is one of those few metals which are capable of dissolving relativelylarge quantities of oxygen. When heated in air at elevated temperatures, anoxide layer is built up at the metal surface. The oxidation of mechanicallypolished zirconium was studied in the range 500-900oC in air atmosphere, attemperature intervals of 100oC, for exposure t...
By Zagorka Koneska, Ružica Manojlović, Dafinka Stoevska-Gogovska
Application of validated mathematical model of composting process for study the effect of air flow rate on process performance
The objectives of this study were to develop and validate the mathematicalmodel (kinetic and reactor model) of composting process, as well to usedvalidated model in order investigate the effects of the air flow rate on organicmatter conversion, carbon dioxide concentration and mixture temperature. Themathematical model incorporated two microbial po...
By Nesib Mustafić, Ivan Petrić, Ervin Karić
Estimation of antioxidative potential of thyme (Thymus alpestris L.)
Family Lamiaceae (labia) includes a large number of cosmopolitan speciesincluding Thymus alpestris (Thyme) characterized by the presence of essential oilsand phenolic compounds. It represents a perennial semi-shrubby plant. Theantioxidant potential of thyme is due to the presence of polyphenolic acids andflavonoids. The topic of this paper is the e...
By Ljubica Vasiljević, Mirjana Beribaka, Jelena Vulinović, Slađana Petronić
Imobilisation of alkali treated apricot shells as a biosorbent for heavy metals removal
In this work, the design and usage of biosorbents made of apricot shells (Prunus armeniaca L.), Na-alginate and bentonite, for heavy metals removal from wastewaters, were investigated. The effect of particle size on the biosorption process, were investigate and the smallest fraction, was immobilized in Na-alginate. Immobilization had a positive eff...
By Tatjana Šoštarić, Marija Petrović, Zorica Lopićić, Jelena Petrović, Jelena Milojković, Marija Mihajlović, Mirjana Stojanović
EFECTS OF CHEMICAL COMPOSITION ON THE MICROSTRUCTURE AND PROPERTIES OF THE CU-Ge-Sb ALLOYS
In the current study a ternary Cu-Ge-Sb system has been experimentally assessed. Chemical andphase compositions of the alloy samples from three vertical sections Cu-GeSb, Ge-CuSb and Sb-CuGe were studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy(EDS) and confirmed by X-ray diffraction analysis (XRD). Hardness of th...
By Dejan Gurešić, Aleksandar Đorđević, Aleksandar Marković, Milica Tomović, Nadežda Talijan, Ivana Manasijević
DETERMINATION OF STEAM-BOILER PIPES FILTHINESS IN THERMAL POWER PLANTS
A reliable operation of the equipment is primarily important for each installation. One of the measures of safe operation steam-boiler systems is purity pipes. Very acceptable method of determining the soiling pipe is a method of staining.In this paper is described the determination of soiling boiler tubes in power plant Ugljevik after a decade of ...
By Bosiljka Stojanović
MANAGEMENT OF CHEMICAL AND MICROBIOLOGICAL WATER QUALITY IN POOLS FOR SWIMMING AND RECREATION
Use of water for recreation or treatment of very it’s very important to maintain health and working capacity of the population. A significant number of people temporarily or permanently, used pools for that purpose. That is why today, in the developed countries, great attention is paid to the quality of water for recreation. The aim of this w...
By Bogoljub Antonić, Miladin Gligorić, Aleksandar Došić, Dragan Vujadinović, Ranko Grujić, Danijela Babić
ADSORPTION OF METHYLENE BLUE DYE ON ACTIVATED CARBON OBTAINED FROM THE FRUIT OF PLANE TREES
The fruit of plane trees is used to obtain the powdered activated carbon. As the activating agent is used in the preparation of concentrated phosphoric acid. Completed the equilibrium adsorption of cationic methylene blue dye in the synthesized material. These results were fitted with three adsorption equilibrium model. The experimental results wer...
By Vladimir Dodevski, Branka Kaluđerović, Sanja Krstić, Đuro Čokeša, Danijela Brković