Results 1 to 10 of about 1,000,893 (259)

Fuel potential and properties of grape pomace hydrochar [PDF]

open access: yesActa Periodica Technologica, 2019
Increasing fossil fuel depletion that leads to air pollution and global warming have become serious environmental problem. For this reason, a numerous of alternative biofuels have been developed and investigated as potential energy sources to ...
Petrović Jelena T.   +6 more
doaj   +1 more source

Nanoplastics in aquatic environments: Origin, separation and characterization: Review [PDF]

open access: yesTehnika, 2023
Scientists discovered plastic in the early 1900s, but didn't realize the detrimental effects its fragmentation could have on the environment 100 years later.
Milojkov Dušan V.   +4 more
doaj  

Hydrophobization of limestone from the deposit 'Cancar' Aranđelovac using stearic acid [PDF]

open access: yesTehnika, 2015
The paper presents the results of investigation of the possibility of hydrophobization of calcite from deposit 'Cancar' company 'Good stone' - Aranđelovac, Serbia.
Mihajlović Slavica R.   +4 more
doaj   +1 more source

Dissolution behaviour of a polyphosphate glass in simulated body fluid [PDF]

open access: yesJournal of the Serbian Chemical Society, 2017
In this work, the dissolution behavior of a polyphosphate glass, with the composition 45P2O5·3SiO2·25K2O·15CaO·10MgO·ZnO·MnO (mol %), in simulated body fluid (SBF) at a temperature of 37 °C for different times was studied.
Nikolić Jelena D.   +6 more
doaj   +1 more source

Effects of structural and textural grain characteristics on leaching of sulphide minerals from a polymetallic concentrate by sodium nitrate and sulphuric acid solution [PDF]

open access: yesHemijska Industrija, 2017
In this paper, the influence of structural and textural characteristics of sulfide minerals on their leaching from a polymetallic concentrate by sulfuric acid and sodium nitrate solution is presented.
Sokić Miroslav D.   +6 more
doaj   +1 more source

Impact of recrystallization on the purity of ANSH crystals produced from Ni hyperaccumulator plant [PDF]

open access: yesTehnika
The industrial development will influence the demand and price of nickel in the coming years which opens the possibility for the use of innovative ways for its exploitation from secondary resources.
Marković Branislav R.   +6 more
doaj   +1 more source

Influence of natural minerals on contaminated solutions pH values [PDF]

open access: yesPodzemni Radovi, 2023
The protection and arrangement of agricultural areas in order to obtain health-safe food is extremely important to know the mobility of heavy metals lead, cadmium, zinc and uranium as radionuclides. This research investigated the influence of mineral raw
Grubišić Mirko   +2 more
doaj   +1 more source

Mineralogical and structural characterization of zeolitic tuff from the Slanci deposit, Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva
Lake Miocene deposits located east of Belgrade in the Danube bend, around Veliko Selo and Slanci, are rich in zeolitic tuffs of the heulandite type. This paper presents mineralogical and structural investigations of zeolitic tuffs in which the dominant ...
Mihajlović Katarina M.   +6 more
doaj   +1 more source

The Bond work index of limestone and andesite mixtures [PDF]

open access: yesMining and Metallurgy Engineering Bor, 2017
This paper investigates grinding of mineral mixtures with different grindabilities in the Bond ball mill. Understanding the ore mixture grinding is of great importance in mineral processing.
Todorović Dejan   +3 more
doaj   +1 more source

Characterization of the zeolitic tuff from the “Igroš-Vidojevići” deposit regarding geological and technological aspects [PDF]

open access: yesHemijska Industrija, 2018
This study presents investigations of zeolitic tuff samples from the “Igroš- -Vidojevići” deposit. The aim of the research was to determine the quality of samples taken from all deposit parts.
Kašić Vladan   +6 more
doaj   +1 more source

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