The aim of this study was to determine the possibility of using two low-cost binders, quicklime and fly ash for the solidification/stabilization (S/S) of pyrite cinder. Pyrite cinder, used in this study, represents a remnant from sulfuric acid production in fertilizer factory IHP “Prahovo” A.D. (Serbia), and has a very high toxic metal ...

By Djurdja Kerkez, Dragana Tomašević Pilipović, Milena Bečelić‐Tomin, Nataša Slijepčević, Dunja Rađenović, Anita Leovac Maćerak, Božo Dalmacija

Strategies based on the enzyme application are increasingly replacing the conventional chemical procedures because of their efficiency, quicker performance and environmental protection. However, natural enzymes can rarely be used in industry since their beneficial features can not endure the industrial conditions. Additional drawbacks of natural en...

By Milica Spasojevic, Olivera Prodanović, Pantic Nevena, Nikolina Popovic, Ana Marija Balaz, Radivoje Prodanovic

The aims of this study were to determine improved kineticparameters in five kinetic models for oxidation of n-butane intomaleic anhydride in an industrial fixed-bed reactor, and tosimulate the reactor performance. On the basis of the measuredprocess parameters, inlet and outlet concentrations of n-butanewere calculated and then used to fit the kine...

By Ervin Karić, Ivan Petric, Vladan Mićić

Emerging technologies, like High Hydrostatic Pressure, heat treatments on low temperatures, and ultra-sonication, have an increasing tendency in industrial application. Vitamin enriched foods, like eggs, are considered as functional foods, but for high retention of biologically active compounds adequate minimal processing technologies are needed. I...

By Adrienn Tóth, Csaba Németh, Emna Ayari, Klára Pásztor-Huszár, Ildikó Zeke, Karina Hidas, László Friedrich

This paper focuses on lignocellulosic waste biomass originating from food industry, which should find its further application in order to fulfill demands of circular economy. Therefore, here are presented some of the chemical and physical properties that affect combustion process, as well as thermochemical reaction kinetics for lignocellulosic biom...

By Zorica Lopičić, Tatjana Šoštarić, Ahmad Hosseini-Bandegharaei, Jelena Milojković, Marija Petrović, Katarina Pantović Spajić, Jelena Avdalović

Scattering of optical photons from the view of parallel methods related to absorption, scattering, fluorescence, reflection with inclusion of the polarization states of laser beams from experiment and theory give many possibilities for obtaining indirect data on material, processes, and dynamics. As a method with minimal perturbations, if low power...

By Milesa Sreckovic, An Marie Tistchenko, Sanja Jevtic, Branka Kaludjerovic, Svetlana Pelemis, Katarina Zarubica, Veljko Zarubica

In this study, Bayesian technique was applied in order toestimate export coefficients for the Melen Watershed.Furthermore, instead of calculating the contributions ofsubwatersheds individually, the whole watershed was consideredfor the estimation of the total load at the outlet of the MelenWatershed using the calculated nitrate export coefficient. ...

By Muhammed Ernur Akıner

Yttrium belongs to the rare earth elements and critical metals.Yttrium oxide is mostly used in fluoroscent lamps, production ofelectrodes, in electronic filters, lasers, superconductors and asadditives in various titanium-aluminium materials to improve theirproperties. Recovery of yttrium oxide from secondary sourcessuch as red mud, coatings from c...

By Srećko Stopić, Sebastian Kallabis, Bernd Friedrich

The paper presents relation for maximal pressure-volume work for closed systems by using principles of I and II law of thermodynamics, used in reversible processes in which mechanical and thermal balance has been achieved. For full interpretation of this problem for two characteristic cases, graphical review in p-v diagram is given, where in an obv...

By Branko Pejović, Mitar Perušić, Duško Kostić, Miladin Gligorić

While a liquid is dripping out of a capillary tube, there is a possibility to affect the characteristics of the exiting flow in certain ways. One of the ways already used is by introducing an electric field that can be used to change the average droplet diameter and the droplet size distribution. This process is called electrospraying, while the th...

By Stefan Bošković, Branko Bugarski