EXAMPLES OF LCA METHODOLOGY IMPLEMENTATION IN STEEL INDUSTRY
Steel industry kept pace with actual trends for environmental protection in many ways – through different technological improvements considering environment protection, important share of recycling in the steel production, design of so called “eco-steels”, materials designed according to recent environmental directives and legisla...
By A. Mitovski, D. Živković, N. Štrbac, Lj. Balanović, D. Manasijević, I. Mihajlović, Ž. Živković
DETERMINATION OF THE LEAD CONTENT IN SPINACH BY UTILIZATION OF THE POTENTIOMETRIC STRIPPING ANALYSIS (PSA)
Absorption of elements by plants is regulated with a series of factors that depend on the plant in issue and conditions of living environment. The main factor that controls the mineral content in plants is a genetic potential for sustenance with different minerals. It is being exhibited with unequal sensitivity and ability for accumulation of speci...
By Lj. Babincev, Lj. Rajkovic
ACTIVATED CARBONS OBTAINED BY PYROLYZING OF RESORCINOL FORMALDEHYDE GELS
Activated carbon is used in different industrial domains due to highly developed specific surface area and its specific chemistry. Properties of activated carbons obtained by pyrolyzing formaldehyde gels are presented in this paper. The gels were synthesized on several temperatures in order to follow the kinetics of gelling process. The relationshi...
By M. R. Vasic, R. Petrović
PLANIRANJE LJUDSKIH RESURSA NA PRIMJERU METALOPRERAĐIVAČKOG PREDUZEĆA
Strategijsko upravljanje ljudskim resursima postaje presudno za pronalaženje originalnih rješenja u proizvodnom sektoru. U ovome radu rasprava je usmjerena na planiranje ljudskih resursa u jednom metaloprerađivačkom preduzeću radi udovoljavanja sve većim tržišnim zahtjevima i poboljšanja konkuretskog položaja. Uključivanjem svi...
By M. Miljanovic, O. Spaic, M. Sokovic
ZERO EMISSIONS CONCEPT
While proposed concepts to minimize, reuse and recycle wastes have generally, not solved the negative effects on environment, zero emissions concepts have arisen. The term Zero Emissions attracted special attention, as it is easily comprehensible and does not require translations. This concept is drawing mounting interest all around the world. In t...
By Z. Zavargo, A. Jokić
HIGH-ENERGY NANOCRYSTALLINE Nd-Fe-B MAGNETIC MATERIALS – SYNTHESIS, CHARACTERIZATION, APPLICATION
One of the most widely used high-energy nanocrystalline permanent magnetic materials are Nd-Fe-B alloys. Current R&D of Nd-Fe-B magnets is focused on three major topics: increase of magnetic energy, improvement of corrosion resistance and reduction of rare-earth content as a way of decreasing prices of final magnetic material with still signifi...
By N. Talijan
WHAT DETERMINES THE WATER QUALITY
In natural waters as a highly complex environment, a different matter, regardless of whether they are natural water ingredients or substances which mature in water by man activity, are subject to one or several different processes. Physical, chemical or biochemical processes are determining finding shapes, behavior and fate of substances in the aqu...
By B. Dalmacija
FORMATION OF CARCINOGENIC SUBSTANCES DURING HEATING OF FOODS
Heating of foods induces chemical reaction pathways that are not only leading to desired compounds (e.g. aroma and taste active) but also to degradation products that can pose a cancer risk. Especially the Maillard reaction is known for the formation of carcinogenic compounds in some instances. Recently, it was described that the uptake of oxid...
By M. Murkovic
INFLUENCE OF APPLYING THE DIFFERENT ACIDS FOR ADJUSTING THE DYEBATH pH IN THE PROCESS OF DYEING THE POLYESTER KNITWEAR WITH DISPERSE YELLOW 3
The influence of using formic, oxalic, citric and tartaric acid for adjusting the dyebath pH upon the dyeability of polyester knitwear dyed with Disperse Yellow 3 was investigated. CIELAB coordinates of the knitwear samples dyed with the addition of tested acids were assessed and compared to those dyed with the addition of acetic acid. The differen...
By M. N. Miljković, M. M. Purenović, M. M. Petrović
SYNTHESIS AND STRUCTURAL ANALYSIS OF A Cu(II) COMPLEX WITH PYRIDOXAL S-METHYLISOTHIOSEMICARBAZONE (PLITSC) LIGAND
Reaction between a warm water mixture of pyridoxal hydrochloride (PL.HCl), and Smethyilisothiosemicarbazidehydroiodide (SMeTSC.HI) in the presence of Na2CO3 .10 H O, we got pyridoxal S-methylisothiosemicarbazone (PLITSC; H2L). Ligand with appropriate Cu salt is coordinated, to give next complex: dark-brown, penta coordinated, square-pyrami...
By S. Ivković, V. Jevtović