Assessing the possibility of solidification and stabilization of pyrite cinder by using quicklime and fly ash
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
The Enzyme Immobilization: Carriers and immobilization methods
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
Determination and Application of Improved Kinetic Parameters for Simulation of Maleic Anhydride Synthesis in Industrial Fixed- Bed Reactor
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
EFFECTS OF MINIMAL PROCESSING AND VITAMIN C ENRICHMENT ON MICROBIOLOGICAL SAFETY AND VISCOSITY OF LIQUID EGG WHITE
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
Investigation of Characteristics and Thermal Behaviour of Lignocellulosic Waste Biomass Using Thermogravimetric Analysis
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
Laser scattering, optical constants and connection to other material performances (Kerr constant, mobility/diffusion coefficient/electrophoresis and depolarization)
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
Using structural equation model to estimate nitrate pollution in the Melen Watershed of the Turkey
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
Sinteza, karakterizacija i ispitivanje antioksidativne aktivnosti estarskih i amidnih derivata 2,6-dimetil-4-supstituisane-1,4-dihidropiridin-3,5-dikarboksilne kiseline
U ovom radu je izvršena sinteza šest estarskih derivata 2,6 dimetil-4-supstituisane-1,4-dihidropiridin-3,5-dikarboksilne kiseline: dietil-2,6-dimetil-4-fenil-1,4-dihidropiridin-3,5 dikarboksilata, dietil-2,6-dimetil-4-(3’-nitrofenil)-1,4 dihidropiridin-3,5-dikarboksilata, dietil-2,6-dimetil-4-(4’ nitrofenil)-1,4-dihidropir...
By Tamara Mijatović, Milica Perić, Luka Matović, Marija Ristović, Saša Drmanić
Characterisation and antimicrobial activity of silver nanoparticles derived from Vascellum pratense polysaccharide extract and sodium citrate
Silver nanoparticles (AgNPs) were synthesized by “green”, cheap hydrothermal method in an autoclave using sodium citrate and Vascellum pratense polysaccharide extract as reducing and stabilizing agents. Presence of spherical AgNPs was confirmed by UV-VIS spectrophotometry and scanning electron microscopy; particle size was determined as...
By Predrag Petrović, Danijela Kostić, Anita Klaus, Jovana Vunduk, Miomir Nikšić, Đorđe Veljović, Leo van Griensven
Physical and chemical modification of lignocellulosic waste biomass-tool for improving sorption capacity
The main constituents of ligno-cellulosic (LC) biomass are lignin, celluloses and hemicelluloses, complex polymers with many functional groups, which can be modified with the purpose to improve the sorption properties&...
By Zorica Lopičić, Tatjana Šoštarić, Jelena Milojković, Marija Mihajlović, Jelena Petrović, Ivan Antanasković, Mirjana Stojanović