Marija L. Mihajlovic

Institut za Tehnologiju Nuklearnih i Drugih Mineralnih Sirovina | ITNMS

In this study, hydrothermal carbonization (HTC) was employed for thermochemical conversion of energy crop Miscanthus × giganteus GREEF et DEU. The effect of process temperatures, in the range between 180 and 220 °C, on the relevant characteristics of the obtained products, hydrochars and process waters, was investigated. The obtained results showed...

Hydrothermal carbonization (HTC) was employed for the conversion of the spent mushroom substrate (SMS) into a carbonaceous hydrochar. The effect of operating temperature (180, 200, 220, 240, and 260 °C) on the physicochemical, structural, and combustion properties of the obtained hydrochars was analyzed. The HTC treatment caused the increase of the...

In the framework of bio-circular economy, miscanthus biomass was valorized through a single-stage, low severity hydrothermal carbonization process. The produced hydrochars were characterized using elemental and spectroscopic methodologies. It was determined that as the temperature increased so did the C content (47.9 and 68.9% for the samples prepa...

A calcium-pyro-hydrochar (Ca-PHC) can be distinguished as a novel sorbent of Pb ²⁺ and Cd ²⁺ from an aqueous solution. It was obtained using hydrothermal treatment of the spent mushroom substrate (SMS), followed by a CaCl 2 ·5H 2 O activation and pyrolysis. The characterisation of chars before and after modifications was done by scanning electron m...

The Paulownia leaves (PL) was used for the first time as feedstock for the potential production of novel carbon-rich materials applying hydrothermal carbonization (HTC) technology. The HTC is one of the suitable methods for converting biomass into high-value carbonaceous products that could replace existing fossil fuels or be used for some other ap...

In this study, the minimization of heavy metal pollution was investigated. Accordingly, potential of corn silk as biosorbent of Pb, Zn and Cu from multimetal solution was considered in batch and fixed-bed column experiments. Structural changes of corn silk before and after heavy metal removal were determined using SEM-EDX and FTIR analyses. For inv...

This work investigates the adsorption mechanism of alachlor and pentachlorobenzene on chars (hydrochars and biochars) originated from Miscanthus giganteus and sugar beet shreds. Two different processes were used: hydrothermal conversion at three temperatures (180, 200, and 220 °C) and slow pyrolysis at 400 °C. Specific surface area (SSA) for all in...

In recent decades, massive exploitation of fossil fuels caused a growing demand for the production of energies from renewable sources. Hydrochar obtained from waste biomass via hydrothermal carbonization (HTC) possesses good potentials as a biofuel. Therefore, we performed HTC of corn cob, paulownia leaves, and olive pomace at different temperature...

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 substitute them. One of promising and highly effective technology for conversion of wet and waste biomass i...

U radu je ispitana mogućnosti finalne formulacije biosorbenata na bazi košticakajsija (Prunus armeniaca L.) kombinovanjem sa Na-alginatom i bentonitom uobliku granula pogodnim za primenu u realnim efluentima. U eksperimentalnomradu ispitan je uticaj granulacije biomase na biosorpcioni kapacitet prema Cu(II),Zn(II) i Pb(II). Najsitnija granulacija,...

This paper presents an eco-friendly approach for minimizing heavy metal pollution, offering food waste valorization and energy source at the same time. It focuses on Cu(II) sorption by low cost sorbent developed by mechanical treatment of Prunus persica L. stones, a food industry waste biomass. Removal of Cu(II) was studied at different operating p...

In order to obtain effective mineral fertilizer, different mixtures of phosphate rock (PR) with natural clinoptilolite (Cp) and NH4+ saturated clinoptilolite (NH4-Cp) were subjected to soft mechanical activation. Mean concentrations of P released from mechanically activated (MA) substrates, MACp/PR and MANH4-Cp/PR, ranged between 2.81-3.19 mg L-1 a...

In this paper, the character of structural changes induced by different mechanical treatments to Prunus persica stones (PS), and its subsequent effect on biosorption kinetic of Cu(II) were investigated. PSs were processed in vibratory disc mill (PS-V) and ultra-centrifugal mill (PS-C) and characterized by XRD, BET, SEM and FTIR spectroscopy. It was...

Global concerns regarding environmental issues have required the evaluation of the waste biomass as potential biosorbents of heavy metals. This paper provides a review on using aquatic weed Myriophyllum spicatum and its compost and selected agricultural wastes: corn silk, peach and apricot stones as biosorbents of lead ions. These biomasses were ch...

As an alternative to dry pyrolysis, hydrothermal carbonization has been proposed as a promising route for conversion of different wastes into biofuels, adsorbents and specific chemicals. Herein, the application of a wide range of waste biomasses as precursors to obtain hydrochars - efficient adsorbents of heavy metals from wastewaters, using hydrot...

This paper promotes the biometric classification system of plant varieties, unique characteristics, in terms of the uranium (U) uptake, primarily in the function of the application for phytoremediation. It is known that the degree of adoption of uranium depends on the plant species and its morphological and physiological properties but it is less k...

There is no data about the corn silk usage as adsorbent for lead removal. In the present study, the corn silk (CS), without any modification, was investigated for adsorption of Pb 2+ ions from aqueous solutions. The CS before and after Pb 2+ adsorption was characterized by SEM-EDX and ATR-FTIR. The effect of pH, contact time, CS dosage and initial...

Concentrations of Fe, Mn, Cu, Zn, Pb, Ni, Co, As, Co, and Hg in the sea grass Posidonia oceanica and surface sediment samples were determined. Together with P. oceanica, surface sediment samples were collected at eight locations in the major demographic, tourist and port areas along the Montenegrin coast to assess metal pollution. The metal polluti...

To assess metal pollution, Fe, Mn, Cu, Zn, Pb, Ni, Co, As, Cd, and Hg contents in samples of the seagrass Posidonia oceanica and surface sediment, collected at eight locations along the Montenegrin coast, were determined. The metal pollution index (MPI) and metal enrichment factor (EF) were then calculated. MPI and EF were lower in sediment than in...

The application of natural fertilizer mixtures that improve nutrient retention ability of soils has attracted considerable attention in recent years. In addition to rock phosphate (RP), the basic components of these mixtures are zeolites modified with selected cations, such as the ammonium ion. The NH4-zeolite serves as a carrier of nutrients as we...

BACKGROUND Lead is one of the frequent contaminants of industrial wastewater. Since it has been shown that aquatic plants can be used for the removal of heavy metals, herein Pb(II) biosorption by Myriophyllum spicatum and its compost were investigated. Effects of pH, ionic strength and contact time were analyzed using a batch experiment. Biomasses...

Aquatic weed Myriophyllum spicatum L. is one of the most invasive water plants known. In many countries it is usually harvested and landfilled, where aerobic and anaerobic decomposition takes place. In this research the kinetic, equilibrium and desorption studies of biosorption of Pb(II), Cu(II), Cd(II), Ni(II) and Zn(II) ions onto compost of Myrio...

Understanding the effect of soil parameters (pH, Eh and organic and inorganic ligands availability) on uranium mobility under different geochemical conditions is fundamental for reliable prediction of its behaviour and fate in the environment. In this study, the impact of total and available phosphorus content, humus and acidity of Serbian agricult...

Environmental pollution with radionuclides, particularly uranium and its decay products is a serious global problem. The current scientific studies estimated that the contamination originating from TENORM, caused by nuclear and non-nuclear technologies, has significantly increased natural level of radioactivity in the last thirty years. During the...

In the last decade, pollution from anthropogenic sources has reached high levels. Special attention is being paid to heavy metals because of their high toxicity, persistence and bioaccumulation tendency. Since the conventional methods for their removal are either too expensive or create large quantities of toxic sludge, attention has been turning t...

One of the ways that uranium enters the environment is via the use of mineral phosphate fertilisers. A further route of uranium depends on soil properties, grown plants and groundwater. The uranium mobility in soil is regulated by environmental pH, red-ox potential, soil structure and mineral composition of a solid phase. The aim of this research w...

This investigation shows that tobacco plant roots and leaves accumulate 60 times more uranium than previously reported. Phytoremediation is a convenient technique to clean up polluted soils using herbaceous plants and trees. Increasing research aims to identify novel plant species that accumulate toxic metals. Tobacco plant (Nicotiana tabacum L.) i...

Conventional treatment technologies for the removal pollutants from the environment usually aren't economically viable or may further generate huge quantity of toxic chemical sludge which requires further treatment. Biosorption is emerging as a potential alternative technique to the existing conventional technologies; its application is economicall...

The continual process of increased industrialization, militarization, and urbanization are among the most powerful sources of environmental degradation all over the world. Environmental contamination caused by radionuclides, in particular, by uranium and its decay products, is a serious problem worldwide and has become the common subject for furthe...

This work was undertaken to study the influence of soil type and its physical and chemical properties on uranium sorption and bioavailability, in order to reduce the uncertainty associated with this parameter in risk assessment models and safe food production. The tests were conducted on three types of Serbian soils: alluvium, chernozem, and gajnja...

Due to rapid emergence of recombinant and antibody-based reagents targeting specifically biomarkers of disease, radiolabeling of antibodies has enabled the imaging and therapy of various reactive oxygen species (ROS)-mediated pathological conditions, such as cancer. Key contributions to this topic have been dissected through two main standpoints: (...

In the context of the recent pandemic threat by the worldwide spread of H5N1 avian influenza, novel insights into the mechanisms of ligand binding and interaction between various inhibitors (zanamivir-ZMV, oseltamivir-OTV, DANA, peramivir-PMV) and neuraminidases (NAs) are of vital importance for the structure-based design of new antiviral drugs. Co...

Using the crystal structures of inhibitors bound to either group-2 or group-1 neuraminidases (NAs), AScore/ShapeDock (GaDock) scoring was shown to identify the binding modes in agreement with the experiment for all inhibitors docked in their own NA/inhibitor crystal structures. To investigate the effect of small changes in protein structure on pred...

In the context of the recent pandemic threat by the worldwide spread of H5N1 avian influenza, novel insights into the mechanism of ligand binding and interaction between various inhibitors (zanamivir – ZMV, oseltamivir – OTV, 2,3-didehydro-2-deoxy-N-acetylneuraminic acid – DANA, peramivir – PMV) and neuraminidases (NA) are of vital importance for t...

In the context of a recent pandemic threat by the worldwide spread of H5N1 avian influenza, the high resistance of H5N1 virus to the most widely used commercial drug, oseltamivir (Tamiflu), is currently an important research topic. Herein, molecular bases of the mechanism of H5N1 NA resistance to oseltamivir were elucidated using a computational ap...