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Prikaz rezultata 611-620 od 2250
Optimization of biodiesel production from waste cooking oil using waste-based CaO/Zeolite catalyst
(Belgrade : Materials Research Society of SerbiaBelgrade : Institute of Technical Sciences of SASA, 2020)
Lignite coal fly ash collected from Serbian thermal power plants was converted into value-added zeolite-like material using a Teflon-lined hydrothermal reactor in an alkali activation process at 150 ºC for 24 h. The obtained ...
Distribution of hydrocarbon biomarkers during microbiological biodegradation of oil
(Beograd: Udruženje mikrobioologa Srbije, 2018)
The pollution of the environment by crude oil and its derivatives is a consequence of human activity, that is, the consequence of the extraction, transport, processing and use of oil. Biodegradation is process of removing ...
Microbial degradation of petroleum hydrocarbons - in vitro study
(Federation of European Microbiological Societies (FEMS), 2020)
Pollution of the environment by petroleum products is a global problem, since its extensive exploitation in broad areas.
Microorganisms can degrade or transform toxic, petroleum derivates into harmless products with high ...
Petroleum pollution of alluvial sediments near Sava river, Serbia
(2018)
Poster presented at SETAC Europe 28th Annual Meeting, May 13-17, 2018, Rome, Italy
Analysis Of Microbial Community In Microbial Fuel Cell System
(Federation of European Microbiological Societies (FEMS), 2020)
This study was aimed to determine the number of various groups of microorganisms in order to
describe the microbial community present in a sample of the Danube river sediment used in
Microbial Fuel Cells (MFC) processes.
Efficiency of comercial enzymatic preparations in grain hydrolyses for preparation of substrates for alcoholic fermentation
(European association for chemical and molecular sciences (EuCheMS), 2006)
In this study, we investigated the optimal composition of substrates and tested optimal enzyme concentration for most efficient substrate degradation.
Electrical properties of isothermally sintered cordierite-based ceramics as function of sintering and activation time / Električna svojstva izotermski sinterovane keramike na bazi kordierita kao funkcija vremena sinterovanja i aktivacije
(Beograd : Savez mašinskih i elektrotehničkih inženjera i tehničara Srbije - SMEITS, 2021)
The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with 5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering ...
Analyzing the corrosion characteristics of anodes used for the sulphur acidic waste water treatment
(Tatranské Matliare : Slovak Society of Chemical Engineering, 2011)
This paper addresses on investigation the possibility of electrolytic treatment the sulphur acidic waste solution, obtained in the conventional electrolytic copper refining process. The copper anodes with non-standard ...
Bioactive pullulan based edible films with medicinal herbal extracts
(Belgrade : Society of Physical Chemists of Serbia, 2018)
In this work, pullulan based films with water extracts of medicinal herbs thyme and sage, were prepared. The resulting films were characterized by FT-IR spectroscopy and their antioxidant and antimicrobial activities were ...
Improving competitiveness through technological and industrial innovation
(Zrenjanin : Technical Faculty "Mihajlo Pupin", 2021)
The globalization of markets affects how enterprises conduct business. In addition to the challenges of
the globalized market, enterprises have to adapt to changes that the coronavirus pandemic has brought to the
global ...