TY  - JOUR
AU  - Perendija, Jovana
AU  - Ljubić, Verica
AU  - Popović, Mina
AU  - Milošević, Dragana
AU  - Arsenijević, Zorana
AU  - Đuriš, Mihal
AU  - Kovač, Sabina
AU  - Cvetković, Slobodan
PY  - 2024
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7203
AB  - The discharge of industrial textile waters into water bodies leads to the accumulation of pollutants which are a serious threat to humans and the environment. The development of an efficient adsorbent for the removal of toxic organic dyes from water is of crucial importance. For that reason, this work aimed to elaborate on the potential application of a biosorbent obtained from waste Humulus lupulus stems (Hlup-BA) for the elimination of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems. The Hlup-BA was characterized using chemical composition analysis, by determination of particle size distribution, the point of zero charge (pHpzc), SEM, BET, EDS, XRD, and FTIR. Comprehensive analysis of Hlup-BA adsorption efficiency in a batch study showed that at the optimal conditions (e.g. contact time, 120 min; biosorbent dose, 2 g/L; dye concentration, 100 g/L; pH, 8 and temperature, 298 K), even 98.4 %, 98.8 %, and 98.5 % of MG, MB, and CV were removed, respectively. The results showed that the biosorption process followed pseudo-second-order kinetics. The equilibrium data were modeled using Langmuir, Freundlich, Sips, and Dubinnin-Radushkevich biosorption isotherms. High values of Hlup-BA biosorption capacities obtained from Langmuir isotherm were 398.9 mg g−1, 209.8 mg g−1, and 133.2 mg g−1 for MG, MB, and CV, thus proving Hlup-BA as an excellent biosorbent for removal of the tested dyes. The thermodynamic study indicated that the biosorption of these three dyes on Hlup-BA from aqueous solution is an endothermic, spontaneous, and thermodynamically stable process. The proposed mechanism of the biosorption process covers π-π interactions, electrostatic interactions, and hydrogen bonding. Furthermore, the data obtained by modeling in the fixed-bed column were also successfully correlated with the Thomas, Bohart-Adams, and Yoon–Nelson models. The very good fit of the results obtained in this way will greatly contribute to optimizing the pilot-scale operations for future wastewater treatment. Consequently, Hlup-BA can be an effective, cheap, and environmentally friendly biosorbent to eliminate methylene blue, malachite green, and crystal violet dyes from the aqueous solution in batch and column systems.
PB  - Elsevier
T2  - Journal of Molecular Liquids
T1  - Assessment of waste hop (Humulus Lupulus) stems as a biosorbent for the removal of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems: Biosorption process and mechanism
VL  - 394
SP  - 123770
DO  - 10.1016/j.molliq.2023.123770
ER  - 

@article{
author = "Perendija, Jovana and Ljubić, Verica and Popović, Mina and Milošević, Dragana and Arsenijević, Zorana and Đuriš, Mihal and Kovač, Sabina and Cvetković, Slobodan",
year = "2024",
abstract = "The discharge of industrial textile waters into water bodies leads to the accumulation of pollutants which are a serious threat to humans and the environment. The development of an efficient adsorbent for the removal of toxic organic dyes from water is of crucial importance. For that reason, this work aimed to elaborate on the potential application of a biosorbent obtained from waste Humulus lupulus stems (Hlup-BA) for the elimination of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems. The Hlup-BA was characterized using chemical composition analysis, by determination of particle size distribution, the point of zero charge (pHpzc), SEM, BET, EDS, XRD, and FTIR. Comprehensive analysis of Hlup-BA adsorption efficiency in a batch study showed that at the optimal conditions (e.g. contact time, 120 min; biosorbent dose, 2 g/L; dye concentration, 100 g/L; pH, 8 and temperature, 298 K), even 98.4 %, 98.8 %, and 98.5 % of MG, MB, and CV were removed, respectively. The results showed that the biosorption process followed pseudo-second-order kinetics. The equilibrium data were modeled using Langmuir, Freundlich, Sips, and Dubinnin-Radushkevich biosorption isotherms. High values of Hlup-BA biosorption capacities obtained from Langmuir isotherm were 398.9 mg g−1, 209.8 mg g−1, and 133.2 mg g−1 for MG, MB, and CV, thus proving Hlup-BA as an excellent biosorbent for removal of the tested dyes. The thermodynamic study indicated that the biosorption of these three dyes on Hlup-BA from aqueous solution is an endothermic, spontaneous, and thermodynamically stable process. The proposed mechanism of the biosorption process covers π-π interactions, electrostatic interactions, and hydrogen bonding. Furthermore, the data obtained by modeling in the fixed-bed column were also successfully correlated with the Thomas, Bohart-Adams, and Yoon–Nelson models. The very good fit of the results obtained in this way will greatly contribute to optimizing the pilot-scale operations for future wastewater treatment. Consequently, Hlup-BA can be an effective, cheap, and environmentally friendly biosorbent to eliminate methylene blue, malachite green, and crystal violet dyes from the aqueous solution in batch and column systems.",
publisher = "Elsevier",
journal = "Journal of Molecular Liquids",
title = "Assessment of waste hop (Humulus Lupulus) stems as a biosorbent for the removal of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems: Biosorption process and mechanism",
volume = "394",
pages = "123770",
doi = "10.1016/j.molliq.2023.123770"
}

Perendija, J., Ljubić, V., Popović, M., Milošević, D., Arsenijević, Z., Đuriš, M., Kovač, S.,& Cvetković, S.. (2024). Assessment of waste hop (Humulus Lupulus) stems as a biosorbent for the removal of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems: Biosorption process and mechanism. in Journal of Molecular Liquids
Elsevier., 394, 123770.
https://doi.org/10.1016/j.molliq.2023.123770

Perendija J, Ljubić V, Popović M, Milošević D, Arsenijević Z, Đuriš M, Kovač S, Cvetković S. Assessment of waste hop (Humulus Lupulus) stems as a biosorbent for the removal of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems: Biosorption process and mechanism. in Journal of Molecular Liquids. 2024;394:123770.
doi:10.1016/j.molliq.2023.123770 .

Perendija, Jovana, Ljubić, Verica, Popović, Mina, Milošević, Dragana, Arsenijević, Zorana, Đuriš, Mihal, Kovač, Sabina, Cvetković, Slobodan, "Assessment of waste hop (Humulus Lupulus) stems as a biosorbent for the removal of malachite green, methylene blue, and crystal violet from aqueous solution in batch and fixed-bed column systems: Biosorption process and mechanism" in Journal of Molecular Liquids, 394 (2024):123770,
https://doi.org/10.1016/j.molliq.2023.123770 . .

TY  - CONF
AU  - Ljubić, Verica
AU  - Milošević, Milena
AU  - Cvetković, Slobodan
AU  - Perendija, Jovana
AU  - Stojanovic, Marijana
AU  - Popović, Mina
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6937
AB  - Probiotics as the most promising group of microbes have the possibility to synthesize metabolites, that can be used in different industries over the world. In this study, we investigated the probiotic activity of the Lactobacillus reuteri B2, as well as, the exopolysaccharides (EPS) that this strain produced. L. reuteri B2 was isolated from the feces of C57BL/6 mice and assessed on probiotic activity. L. reuteri B2 was identified by 16S rDNA sequencing, in which the cell viability in acidic conditions at pH 2.0 was 64% after 2 h, and in the presents of 0.30% of the bile salts, after 6 h, was 37%. Antimicrobial assay with L. reuteri B2 showed maximum diameters against K. oxytoca J7 (12.5±0.71mm). We further hypothesized if L. reuteri B2 strain in the free form can survive all conditions in the gastrointestinal tract (GIT) then the utilization of the appropriate biomaterials would ameliorate its stability and viability in GIT. L. reuteri B2 was microencapsulated into sodium alginate- (Na-alg) and different content of Na-alg and sodium maleate (SM) beads. Second hypothesis was if a novel EPS, extracted and isolated from L. reuteri B2, that obtain biological activity can be used as biomaterial. Characterization of this EPS enveloped FTIR, NMR, SEM, XRD, TGA/DTG analysis, biological assays, antioxidative activity, cytotoxic assay (MTT), and adhesion assay of L. reuteri B2 to HT29 cells. This EPS obtained a high scavenging effect of 76% at 2mg/mL of EPS in ABTS assay, while in MTT assay showed that did not have a cytotoxic effect.
PB  - MIND Authors
C3  - 4th Virtual Congress on Materials Science & Engineering, 28-31 March, 2022, on-line
T1  - Characterization and biological activity of exopolysaccharide extracted from novel probiotic strain L. reuteri B2., as novel biomaterial
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_cer_6937
ER  - 

@conference{
author = "Ljubić, Verica and Milošević, Milena and Cvetković, Slobodan and Perendija, Jovana and Stojanovic, Marijana and Popović, Mina",
year = "2023",
abstract = "Probiotics as the most promising group of microbes have the possibility to synthesize metabolites, that can be used in different industries over the world. In this study, we investigated the probiotic activity of the Lactobacillus reuteri B2, as well as, the exopolysaccharides (EPS) that this strain produced. L. reuteri B2 was isolated from the feces of C57BL/6 mice and assessed on probiotic activity. L. reuteri B2 was identified by 16S rDNA sequencing, in which the cell viability in acidic conditions at pH 2.0 was 64% after 2 h, and in the presents of 0.30% of the bile salts, after 6 h, was 37%. Antimicrobial assay with L. reuteri B2 showed maximum diameters against K. oxytoca J7 (12.5±0.71mm). We further hypothesized if L. reuteri B2 strain in the free form can survive all conditions in the gastrointestinal tract (GIT) then the utilization of the appropriate biomaterials would ameliorate its stability and viability in GIT. L. reuteri B2 was microencapsulated into sodium alginate- (Na-alg) and different content of Na-alg and sodium maleate (SM) beads. Second hypothesis was if a novel EPS, extracted and isolated from L. reuteri B2, that obtain biological activity can be used as biomaterial. Characterization of this EPS enveloped FTIR, NMR, SEM, XRD, TGA/DTG analysis, biological assays, antioxidative activity, cytotoxic assay (MTT), and adhesion assay of L. reuteri B2 to HT29 cells. This EPS obtained a high scavenging effect of 76% at 2mg/mL of EPS in ABTS assay, while in MTT assay showed that did not have a cytotoxic effect.",
publisher = "MIND Authors",
journal = "4th Virtual Congress on Materials Science & Engineering, 28-31 March, 2022, on-line",
title = "Characterization and biological activity of exopolysaccharide extracted from novel probiotic strain L. reuteri B2., as novel biomaterial",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_cer_6937"
}

Ljubić, V., Milošević, M., Cvetković, S., Perendija, J., Stojanovic, M.,& Popović, M.. (2023). Characterization and biological activity of exopolysaccharide extracted from novel probiotic strain L. reuteri B2., as novel biomaterial. in 4th Virtual Congress on Materials Science & Engineering, 28-31 March, 2022, on-line
MIND Authors., 40-40.
https://hdl.handle.net/21.15107/rcub_cer_6937

Ljubić V, Milošević M, Cvetković S, Perendija J, Stojanovic M, Popović M. Characterization and biological activity of exopolysaccharide extracted from novel probiotic strain L. reuteri B2., as novel biomaterial. in 4th Virtual Congress on Materials Science & Engineering, 28-31 March, 2022, on-line. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_cer_6937 .

Ljubić, Verica, Milošević, Milena, Cvetković, Slobodan, Perendija, Jovana, Stojanovic, Marijana, Popović, Mina, "Characterization and biological activity of exopolysaccharide extracted from novel probiotic strain L. reuteri B2., as novel biomaterial" in 4th Virtual Congress on Materials Science & Engineering, 28-31 March, 2022, on-line (2023):40-40,
https://hdl.handle.net/21.15107/rcub_cer_6937 .

TY  - CONF
AU  - Milošević, Dragana
AU  - Matović, Luka
AU  - Ljubić, Verica
AU  - Perendija, Jovana
AU  - Cvetković, Slobodan
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6789
AB  - У овом раду, отпадна биомаса Аrundo donax (АД) је коришћена за адсорпцију Ni2+ из водених раствора. Површина АД је карактерисана СЕМ и ФТИР методама анализе. Адсорпциони експерименти су изведени у шаржним условима, при почетној pH вредности раствора pHi = 7 и различитим почетним концентрацијама Ni2+. Процес адсорпције је боље описан Фројндлиховим него Лангмировим моделом, односно адсорпција је вишеслојна са хетерогеном расподелом активних центара на површини материјала. Кинетика адсорпције Ni2+ на АД јe боље описана моделом псеудо–другог реда него моделом псеудо–првог реда, што указује на успостављање хемијских интеракција између адсорбата и слободних места на површини адсорбената. Добијени резултати су указали да АД има потенцијал за пречишћавање вода загађених никлом.
AB  - In this paper, Arundo donax (AD) waste biomass was used for the adsorption of Ni2+ from aqueous solutions. The AD surface was characterized by SEM and FT-IR analysis. Adsorption experiments were carried out in the batch adsorption system, at an initial pH value of pHi = 7 and different initial Ni2+ concentrations. The adsorption process was better described by Freundlich’s than by Langmuir’s model, i.e. adsorption is multilayered with a heterogeneous distribution of active sites on the material surface. The kinetic study of Ni2+ adsorption showed that pseudo–second order was the model that better described the experimental adsorption data compared to pseudo first order model, indicating the formation of chemical interactions between adsorbate and free sites on the adsorbent surface. The obtained results indicated that AD has the potential for the remediation of nickel-polluted waters.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - Zbornik radova sa 44. Međunarodne konferencije Vodovod i kanalizacija '23, 10-13- oktobar 2023, Zlatibor
T1  - Mogućnost primene otpadne biomase (Arundo donax) za adsorpciju Ni2+ iz vodenih rastvora
T1  - The possibility of using waste biomass (Arundo donax) for adsorption of Ni2+ from aqueous solutions
SP  - 243
EP  - 248
UR  - https://hdl.handle.net/21.15107/rcub_cer_6789
ER  - 

@conference{
author = "Milošević, Dragana and Matović, Luka and Ljubić, Verica and Perendija, Jovana and Cvetković, Slobodan",
year = "2023",
abstract = "У овом раду, отпадна биомаса Аrundo donax (АД) је коришћена за адсорпцију Ni2+ из водених раствора. Површина АД је карактерисана СЕМ и ФТИР методама анализе. Адсорпциони експерименти су изведени у шаржним условима, при почетној pH вредности раствора pHi = 7 и различитим почетним концентрацијама Ni2+. Процес адсорпције је боље описан Фројндлиховим него Лангмировим моделом, односно адсорпција је вишеслојна са хетерогеном расподелом активних центара на површини материјала. Кинетика адсорпције Ni2+ на АД јe боље описана моделом псеудо–другог реда него моделом псеудо–првог реда, што указује на успостављање хемијских интеракција између адсорбата и слободних места на површини адсорбената. Добијени резултати су указали да АД има потенцијал за пречишћавање вода загађених никлом., In this paper, Arundo donax (AD) waste biomass was used for the adsorption of Ni2+ from aqueous solutions. The AD surface was characterized by SEM and FT-IR analysis. Adsorption experiments were carried out in the batch adsorption system, at an initial pH value of pHi = 7 and different initial Ni2+ concentrations. The adsorption process was better described by Freundlich’s than by Langmuir’s model, i.e. adsorption is multilayered with a heterogeneous distribution of active sites on the material surface. The kinetic study of Ni2+ adsorption showed that pseudo–second order was the model that better described the experimental adsorption data compared to pseudo first order model, indicating the formation of chemical interactions between adsorbate and free sites on the adsorbent surface. The obtained results indicated that AD has the potential for the remediation of nickel-polluted waters.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Zbornik radova sa 44. Međunarodne konferencije Vodovod i kanalizacija '23, 10-13- oktobar 2023, Zlatibor",
title = "Mogućnost primene otpadne biomase (Arundo donax) za adsorpciju Ni2+ iz vodenih rastvora, The possibility of using waste biomass (Arundo donax) for adsorption of Ni2+ from aqueous solutions",
pages = "243-248",
url = "https://hdl.handle.net/21.15107/rcub_cer_6789"
}

Milošević, D., Matović, L., Ljubić, V., Perendija, J.,& Cvetković, S.. (2023). Mogućnost primene otpadne biomase (Arundo donax) za adsorpciju Ni2+ iz vodenih rastvora. in Zbornik radova sa 44. Međunarodne konferencije Vodovod i kanalizacija '23, 10-13- oktobar 2023, Zlatibor
Beograd : Savez inženjera i tehničara Srbije., 243-248.
https://hdl.handle.net/21.15107/rcub_cer_6789

Milošević D, Matović L, Ljubić V, Perendija J, Cvetković S. Mogućnost primene otpadne biomase (Arundo donax) za adsorpciju Ni2+ iz vodenih rastvora. in Zbornik radova sa 44. Međunarodne konferencije Vodovod i kanalizacija '23, 10-13- oktobar 2023, Zlatibor. 2023;:243-248.
https://hdl.handle.net/21.15107/rcub_cer_6789 .

Milošević, Dragana, Matović, Luka, Ljubić, Verica, Perendija, Jovana, Cvetković, Slobodan, "Mogućnost primene otpadne biomase (Arundo donax) za adsorpciju Ni2+ iz vodenih rastvora" in Zbornik radova sa 44. Međunarodne konferencije Vodovod i kanalizacija '23, 10-13- oktobar 2023, Zlatibor (2023):243-248,
https://hdl.handle.net/21.15107/rcub_cer_6789 .

TY  - JOUR
AU  - Ljubić, Verica
AU  - Perendija, Jovana
AU  - Cvetković, Slobodan
AU  - Rogan, Jelena
AU  - Trivunac, Katarina
AU  - Stojanović, Marijana
AU  - Popović, Mina
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6883
AB  - Nowadays, exopolysaccharides (EPS) produced from bacterial cells are manufactured for their use in different industries in the world, mainly in the food, pharmaceutical, and wastewater industries. The characteristics of EPS, such as being biodegradable, safe, high adsorption capacity, and reusable, make them significant and potential applications in the purification of contaminated water of heavy metals. In this study, the possible application in biosorption Ni2+ ions from contaminated water was assessed using this exopolysaccharide as a biosorbent. The new exopolysaccharide from the bacterial strain K. oxytoca J7 was extracted, isolated, and characterized using SEM, FTIR, XRD, TGA/DTG, and MALDI-TOF MS analysis. Likewise, the cytotoxic activity was performed for EPS from K. oxytoca J7 strain. The aim of this study was to investigate the possible application of non-toxic exopolysaccharide in the purification of contaminated water by removing Ni2+ ions. The results obtained from the biosorption study showed that the Langmuir model is well suited to describe the adsorption process of Ni2+ ions by EPS from K. oxytoca J7, with a maximum adsorption capacity of 269.97 mg g–1. The importance of this study is the possible use of natural nontoxic exopolysaccharide extracted from the pathogen microorganism, K. oxytoca J7, for the removal of Ni2+ ions from the contaminated water.
PB  - Springer
T2  - Journal of Polymers and the Environment
T1  - Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent
DO  - 10.1007/s10924-023-03031-5
ER  - 

@article{
author = "Ljubić, Verica and Perendija, Jovana and Cvetković, Slobodan and Rogan, Jelena and Trivunac, Katarina and Stojanović, Marijana and Popović, Mina",
year = "2023",
abstract = "Nowadays, exopolysaccharides (EPS) produced from bacterial cells are manufactured for their use in different industries in the world, mainly in the food, pharmaceutical, and wastewater industries. The characteristics of EPS, such as being biodegradable, safe, high adsorption capacity, and reusable, make them significant and potential applications in the purification of contaminated water of heavy metals. In this study, the possible application in biosorption Ni2+ ions from contaminated water was assessed using this exopolysaccharide as a biosorbent. The new exopolysaccharide from the bacterial strain K. oxytoca J7 was extracted, isolated, and characterized using SEM, FTIR, XRD, TGA/DTG, and MALDI-TOF MS analysis. Likewise, the cytotoxic activity was performed for EPS from K. oxytoca J7 strain. The aim of this study was to investigate the possible application of non-toxic exopolysaccharide in the purification of contaminated water by removing Ni2+ ions. The results obtained from the biosorption study showed that the Langmuir model is well suited to describe the adsorption process of Ni2+ ions by EPS from K. oxytoca J7, with a maximum adsorption capacity of 269.97 mg g–1. The importance of this study is the possible use of natural nontoxic exopolysaccharide extracted from the pathogen microorganism, K. oxytoca J7, for the removal of Ni2+ ions from the contaminated water.",
publisher = "Springer",
journal = "Journal of Polymers and the Environment",
title = "Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent",
doi = "10.1007/s10924-023-03031-5"
}

Ljubić, V., Perendija, J., Cvetković, S., Rogan, J., Trivunac, K., Stojanović, M.,& Popović, M.. (2023). Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent. in Journal of Polymers and the Environment
Springer..
https://doi.org/10.1007/s10924-023-03031-5

Ljubić V, Perendija J, Cvetković S, Rogan J, Trivunac K, Stojanović M, Popović M. Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent. in Journal of Polymers and the Environment. 2023;.
doi:10.1007/s10924-023-03031-5 .

Ljubić, Verica, Perendija, Jovana, Cvetković, Slobodan, Rogan, Jelena, Trivunac, Katarina, Stojanović, Marijana, Popović, Mina, "Removal of Ni2+ ions from Contaminated Water by New Exopolysaccharide Extracted from K. oxytoca J7 as Biosorbent" in Journal of Polymers and the Environment (2023),
https://doi.org/10.1007/s10924-023-03031-5 . .

TY  - JOUR
AU  - Ljubić, Verica
AU  - Milošević, Milena
AU  - Cvetković, Slobodan
AU  - Stojanović, Marijana
AU  - Novović, Katarina
AU  - Dinić, Miroslav
AU  - Popović, Mina
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5325
AB  - As one of the most promising groups of microbes, lactic acid bacteria (LAB) can synthesize metabolites that can be used in different industries over the world, mainly in the pharmaceutical, food, and dairy industries. In this study, a novel exopolysaccharide was extracted and isolated from the probiotic strain Lactobacillus reuteri B2, and assessed on biological activity and its possible application as a biosorbent for the removal of Ni2+ ions from contaminated water. New exopolysaccharide was characterized using FTIR, SEM, XRD, NMR, MALDI-TOF MS, and TGA/DTG analysis. Biological assays included antioxidative activity, cytotoxic assay, and adhesion assay of L. reuteri B2 to HT29 cells. Our hypothesis was that if this exopolysaccharide is nontoxic, it can be used as a novel biomaterial for the possible application of the removal of Ni2+ ions from contaminated water. The scavenging effect of nontoxic exopolysaccharide was 76% at 2 mg/mL using ABTS assay, in biological assays, while the removal efficiency of nickel from the aqueous solution was 92.96% in biosorption study. According to these results, this exopolysaccharide can be considered a very promising biomaterial for potential application in different industries, from pharmacy to wastewater treatments.
PB  - Springer
T2  - Biomass Conversion and Biorefinery
T1  - The new exopolysaccharide produced by the probiotic strain L. reuteri B2: extraction, biological properties, and possible application for Ni2+ ion removal from the contaminated water
DO  - 10.1007/s13399-022-03292-5
ER  - 

@article{
author = "Ljubić, Verica and Milošević, Milena and Cvetković, Slobodan and Stojanović, Marijana and Novović, Katarina and Dinić, Miroslav and Popović, Mina",
year = "2022",
abstract = "As one of the most promising groups of microbes, lactic acid bacteria (LAB) can synthesize metabolites that can be used in different industries over the world, mainly in the pharmaceutical, food, and dairy industries. In this study, a novel exopolysaccharide was extracted and isolated from the probiotic strain Lactobacillus reuteri B2, and assessed on biological activity and its possible application as a biosorbent for the removal of Ni2+ ions from contaminated water. New exopolysaccharide was characterized using FTIR, SEM, XRD, NMR, MALDI-TOF MS, and TGA/DTG analysis. Biological assays included antioxidative activity, cytotoxic assay, and adhesion assay of L. reuteri B2 to HT29 cells. Our hypothesis was that if this exopolysaccharide is nontoxic, it can be used as a novel biomaterial for the possible application of the removal of Ni2+ ions from contaminated water. The scavenging effect of nontoxic exopolysaccharide was 76% at 2 mg/mL using ABTS assay, in biological assays, while the removal efficiency of nickel from the aqueous solution was 92.96% in biosorption study. According to these results, this exopolysaccharide can be considered a very promising biomaterial for potential application in different industries, from pharmacy to wastewater treatments.",
publisher = "Springer",
journal = "Biomass Conversion and Biorefinery",
title = "The new exopolysaccharide produced by the probiotic strain L. reuteri B2: extraction, biological properties, and possible application for Ni2+ ion removal from the contaminated water",
doi = "10.1007/s13399-022-03292-5"
}

Ljubić, V., Milošević, M., Cvetković, S., Stojanović, M., Novović, K., Dinić, M.,& Popović, M.. (2022). The new exopolysaccharide produced by the probiotic strain L. reuteri B2: extraction, biological properties, and possible application for Ni2+ ion removal from the contaminated water. in Biomass Conversion and Biorefinery
Springer..
https://doi.org/10.1007/s13399-022-03292-5

Ljubić V, Milošević M, Cvetković S, Stojanović M, Novović K, Dinić M, Popović M. The new exopolysaccharide produced by the probiotic strain L. reuteri B2: extraction, biological properties, and possible application for Ni2+ ion removal from the contaminated water. in Biomass Conversion and Biorefinery. 2022;.
doi:10.1007/s13399-022-03292-5 .

Ljubić, Verica, Milošević, Milena, Cvetković, Slobodan, Stojanović, Marijana, Novović, Katarina, Dinić, Miroslav, Popović, Mina, "The new exopolysaccharide produced by the probiotic strain L. reuteri B2: extraction, biological properties, and possible application for Ni2+ ion removal from the contaminated water" in Biomass Conversion and Biorefinery (2022),
https://doi.org/10.1007/s13399-022-03292-5 . .

TY  - JOUR
AU  - Cvetković, Slobodan
AU  - Popović, Mina
AU  - Ljubić, Verica
AU  - Perendija, Jovana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5624
AB  - Potreba za smanjenjem upotrebe fosilnih goriva, zbog štetnog uticaja na životnu sredinu i sve veća potražnja za  energijom, doveli su do proizvodnje energije iz obnovljivih izvora. Pristup čistoj i obnovljivoj energiji postao je imperativ za  društveni napredak. Poboljšanje postojećih resursa biomase u efikasne nosioce energije kao što je biogas iz anaerobne  digestije ima potencijal da obezbedi čistu i pouzdanu energiju, uz zaštitu životne sredine, racionalno korišćenje prirodnih  resursa i stvaranje novih radnih mesta. Uz smanjenje emisije gasova staklene bašte, biogas poboljšava energetsku  sigurnost i, kao obnovljivi izvor energije, omogućava eksploataciju otpadnih tokova. Biogas proizveden u sistemu  anaerobne digestije se obično sagoreva u kogeneracionoj jedinici da bi se proizvela toplota, električna energija i energija  za hlađenje. Konačno, biogas se može prečistiti u biometan, koristiti kao gorivo u vozilima ili ubrizgati u nacionalne mreže  prirodnog gasa. Digestat kao nusproizvod anaerobne digestije je pouzdan materijal za upotrebu kao đubrivo u poljoprivredi.  U ovom radu sumirano je korišćenje biogasa za proizvodnju toplotne, električne energije, rashladne energije, kao i goriva  sa pregledom postojećih tehnologija za njegovu upotrebu. Takođe, ovaj rad pruža priliku da se razmotri uloga biogasa u  budućim energetskim sistemima.
AB  - The need to reduce the use of fossil fuels, due to the harmful impact on the environment and the growing energy  demand, have led to the production of energy from renewable sources. Access to clean and renewable energy has become  imperative for social progress. Improving existing biomass resources into efficient energy carriers such as biogas from  anaerobic digestion has the potential to provide clean and reliable energy, with environmental protection, rationally using  natural resources and generation of new jobs. Along with reducing greenhouse gas emissions, biogas improves energy  security and, as a renewable energy source, enables the exploitation of waste streams. Biogas produced in an anaerobic  digestion system is usually burned in a cogeneration unit to produce heat, electricity, and cooling energy. Finally, biogas  can be purified into biomethane, used as a fuel for vehicles, or injected into national natural gas networks. Digestate as a  by-product of anaerobic digestion is a reliable material for use as a fertilizer in agriculture. This paper summarizes the use  of biogas for the production of heat, electricity, cooling energy, as well as fuel with an overview of existing technologies for  its use. Also, this paper provides an opportunity to consider the role of biogas in future energy systems.
PB  - Faculty of Philology, University of Belgrade
T2  - Ecologica
T1  - Biogas tehnologija u funkciji proizvodnje energije
VL  - 29
IS  - 108
SP  - 639
EP  - 646
DO  - 10.18485/ecologica.2022.29.108.22
ER  - 

@article{
author = "Cvetković, Slobodan and Popović, Mina and Ljubić, Verica and Perendija, Jovana",
year = "2022",
abstract = "Potreba za smanjenjem upotrebe fosilnih goriva, zbog štetnog uticaja na životnu sredinu i sve veća potražnja za  energijom, doveli su do proizvodnje energije iz obnovljivih izvora. Pristup čistoj i obnovljivoj energiji postao je imperativ za  društveni napredak. Poboljšanje postojećih resursa biomase u efikasne nosioce energije kao što je biogas iz anaerobne  digestije ima potencijal da obezbedi čistu i pouzdanu energiju, uz zaštitu životne sredine, racionalno korišćenje prirodnih  resursa i stvaranje novih radnih mesta. Uz smanjenje emisije gasova staklene bašte, biogas poboljšava energetsku  sigurnost i, kao obnovljivi izvor energije, omogućava eksploataciju otpadnih tokova. Biogas proizveden u sistemu  anaerobne digestije se obično sagoreva u kogeneracionoj jedinici da bi se proizvela toplota, električna energija i energija  za hlađenje. Konačno, biogas se može prečistiti u biometan, koristiti kao gorivo u vozilima ili ubrizgati u nacionalne mreže  prirodnog gasa. Digestat kao nusproizvod anaerobne digestije je pouzdan materijal za upotrebu kao đubrivo u poljoprivredi.  U ovom radu sumirano je korišćenje biogasa za proizvodnju toplotne, električne energije, rashladne energije, kao i goriva  sa pregledom postojećih tehnologija za njegovu upotrebu. Takođe, ovaj rad pruža priliku da se razmotri uloga biogasa u  budućim energetskim sistemima., The need to reduce the use of fossil fuels, due to the harmful impact on the environment and the growing energy  demand, have led to the production of energy from renewable sources. Access to clean and renewable energy has become  imperative for social progress. Improving existing biomass resources into efficient energy carriers such as biogas from  anaerobic digestion has the potential to provide clean and reliable energy, with environmental protection, rationally using  natural resources and generation of new jobs. Along with reducing greenhouse gas emissions, biogas improves energy  security and, as a renewable energy source, enables the exploitation of waste streams. Biogas produced in an anaerobic  digestion system is usually burned in a cogeneration unit to produce heat, electricity, and cooling energy. Finally, biogas  can be purified into biomethane, used as a fuel for vehicles, or injected into national natural gas networks. Digestate as a  by-product of anaerobic digestion is a reliable material for use as a fertilizer in agriculture. This paper summarizes the use  of biogas for the production of heat, electricity, cooling energy, as well as fuel with an overview of existing technologies for  its use. Also, this paper provides an opportunity to consider the role of biogas in future energy systems.",
publisher = "Faculty of Philology, University of Belgrade",
journal = "Ecologica",
title = "Biogas tehnologija u funkciji proizvodnje energije",
volume = "29",
number = "108",
pages = "639-646",
doi = "10.18485/ecologica.2022.29.108.22"
}

Cvetković, S., Popović, M., Ljubić, V.,& Perendija, J.. (2022). Biogas tehnologija u funkciji proizvodnje energije. in Ecologica
Faculty of Philology, University of Belgrade., 29(108), 639-646.
https://doi.org/10.18485/ecologica.2022.29.108.22

Cvetković S, Popović M, Ljubić V, Perendija J. Biogas tehnologija u funkciji proizvodnje energije. in Ecologica. 2022;29(108):639-646.
doi:10.18485/ecologica.2022.29.108.22 .

Cvetković, Slobodan, Popović, Mina, Ljubić, Verica, Perendija, Jovana, "Biogas tehnologija u funkciji proizvodnje energije" in Ecologica, 29, no. 108 (2022):639-646,
https://doi.org/10.18485/ecologica.2022.29.108.22 . .

TY  - CONF
AU  - Perendija, Jovana
AU  - Popović, Mina
AU  - Ljubić, Verica
AU  - Milošević, Dragana
AU  - Cvetković, Slobodan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6467
AB  - Загађење водених екосистема изазвано никлом представља озбиљну еколошку претњу током последњих неколико деценија и од великог је еколошког значаја. Ова забринутост произилази из чињенице да је никл биоразградив, високотоксичан и да потенцијално може изазвати бројне штетне ефекте по здравље људи. У овом раду испитана је биосорпција јона никла при различитим контактним временима коришћењем отпадне биомасе хмеља. Висока вредност коефицијента корелације од 0,999 указује да кинетика адсорпције прати модел псеудо-другог реда. Хмељ је показао висок потенцијал у уклањању Ni2+ из водених раствора са ефикасношћу до 86%. Коришћење отпадне биомасе хмеља бити ефикасна, економична и еколошки погодна опција за очување животне средине.
AB  - Nickel pollution of aquatic ecosystems has been a serious environmental threat during the last few decades and is of great environmental importance. This concern stems from the fact that nickel is biodegradable, highly toxic, and can potentially cause numerous adverse effects on human health. In this work, the biosorption of nickel ions at different contact times was investigated using hop biomass waste. The high correlation coefficient value of 0.999 indicates that the adsorption kinetics follows a pseudo-second-order model. Hops showed high potential for Ni2+ removal from aqueous solutions with an efficiency ofup to 86%. The use of waste biomass of hops can be an efficient, economical and ecologically suitable option for the preservation of the environment.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - Zbornik radova - 43. Međunarodna konferencija Vodovod i kanalizacija '22, 11-14. oktobar 2022, Zrenjanin, Srbija
T1  - Mogućnost primene otpadne biomase hmelja za adsorpciju jona Ni2+ iz vodenih rastvora
T1  - Possibility of waste biomass of hops utilisation for adsorption of Ni2+ ions from aqueous solutions
SP  - 351
EP  - 356
UR  - https://hdl.handle.net/21.15107/rcub_cer_6467
ER  - 

@conference{
author = "Perendija, Jovana and Popović, Mina and Ljubić, Verica and Milošević, Dragana and Cvetković, Slobodan",
year = "2022",
abstract = "Загађење водених екосистема изазвано никлом представља озбиљну еколошку претњу током последњих неколико деценија и од великог је еколошког значаја. Ова забринутост произилази из чињенице да је никл биоразградив, високотоксичан и да потенцијално може изазвати бројне штетне ефекте по здравље људи. У овом раду испитана је биосорпција јона никла при различитим контактним временима коришћењем отпадне биомасе хмеља. Висока вредност коефицијента корелације од 0,999 указује да кинетика адсорпције прати модел псеудо-другог реда. Хмељ је показао висок потенцијал у уклањању Ni2+ из водених раствора са ефикасношћу до 86%. Коришћење отпадне биомасе хмеља бити ефикасна, економична и еколошки погодна опција за очување животне средине., Nickel pollution of aquatic ecosystems has been a serious environmental threat during the last few decades and is of great environmental importance. This concern stems from the fact that nickel is biodegradable, highly toxic, and can potentially cause numerous adverse effects on human health. In this work, the biosorption of nickel ions at different contact times was investigated using hop biomass waste. The high correlation coefficient value of 0.999 indicates that the adsorption kinetics follows a pseudo-second-order model. Hops showed high potential for Ni2+ removal from aqueous solutions with an efficiency ofup to 86%. The use of waste biomass of hops can be an efficient, economical and ecologically suitable option for the preservation of the environment.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Zbornik radova - 43. Međunarodna konferencija Vodovod i kanalizacija '22, 11-14. oktobar 2022, Zrenjanin, Srbija",
title = "Mogućnost primene otpadne biomase hmelja za adsorpciju jona Ni2+ iz vodenih rastvora, Possibility of waste biomass of hops utilisation for adsorption of Ni2+ ions from aqueous solutions",
pages = "351-356",
url = "https://hdl.handle.net/21.15107/rcub_cer_6467"
}

Perendija, J., Popović, M., Ljubić, V., Milošević, D.,& Cvetković, S.. (2022). Mogućnost primene otpadne biomase hmelja za adsorpciju jona Ni2+ iz vodenih rastvora. in Zbornik radova - 43. Međunarodna konferencija Vodovod i kanalizacija '22, 11-14. oktobar 2022, Zrenjanin, Srbija
Beograd : Savez inženjera i tehničara Srbije., 351-356.
https://hdl.handle.net/21.15107/rcub_cer_6467

Perendija J, Popović M, Ljubić V, Milošević D, Cvetković S. Mogućnost primene otpadne biomase hmelja za adsorpciju jona Ni2+ iz vodenih rastvora. in Zbornik radova - 43. Međunarodna konferencija Vodovod i kanalizacija '22, 11-14. oktobar 2022, Zrenjanin, Srbija. 2022;:351-356.
https://hdl.handle.net/21.15107/rcub_cer_6467 .

Perendija, Jovana, Popović, Mina, Ljubić, Verica, Milošević, Dragana, Cvetković, Slobodan, "Mogućnost primene otpadne biomase hmelja za adsorpciju jona Ni2+ iz vodenih rastvora" in Zbornik radova - 43. Međunarodna konferencija Vodovod i kanalizacija '22, 11-14. oktobar 2022, Zrenjanin, Srbija (2022):351-356,
https://hdl.handle.net/21.15107/rcub_cer_6467 .

TY  - CONF
AU  - Ljubić, Verica
AU  - Cvetković, Slobodan
AU  - Perendija, Jovana
AU  - Djukić-Vuković, Aleksandra
AU  - Popović, Mina
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6884
AB  - Lactic acid bacteria synthesize metabolites that can be used in pharmaceutical, food, water, and dairy industries. Hence, in this study, a novel exopolysaccharide was extracted and isolated from the probiotic strain L. reuteri B2, assessed on possible application as a biosorbent for removal of heavy metals from the contaminated water. Novel exopolysaccharide was characterized using SEM, and TGA/DTG analysis. Our hypothesis was that if this EPS can be used as potentinal biomaterial, than its application for nickel removal from the contaminated water can be performed. After biosorption experiments, the removal efficiency of Ni2+ from the aqueous solution was 92.96%. According to these results, this exopolysaccharide can be considered as a very promising biomaterial for application in different industries, from pharmacy to treatments of contaminted water
AB  - Bakterije mlečne kiseline sintetišu metabolite koji se mogu koristiti u farmaceutskoj, prehrambenoj,
vodenoj i mlečnoj industriji. S toga, u ovoj studiji je ekstrahovan i izolovan novi egzopolisaharid iz
probiotičkog soja L. reuteri B2, koji je testiran za moguću primenu kao biosorbent za uklanjanje
teških metala iz kontaminirane vode. Novi egzopolisaharid je okarakterisan korišćenjem SEM i
TGA/DTG analize. Naša hipoteza je bila da ako se ovaj EPS može koristiti kao potencijalni
biomaterijal, onda se može primeniti za uklanjanje nikla iz kontaminirane vode. Nakon
eksperimenata biosorpcije, efikasnost uklanjanja Ni2+ jona iz vodenog rastvora bila je 92,96%.
Prema ovim rezultatima, ovaj egzopolisaharid se može smatrati veoma perspektivnim biomaterijalom za primenu u različitim industrijama, od farmacije do tretmana kontaminirane vode
PB  - Belgrade : Serbian Society of Corrosion and Materials  Protection UISKOZAM / Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM
C3  - Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare
T1  - Extraction of novel exopolysaccharide as potential biosorbent for removal of Ni2+ ions from contaminated water
SP  - INVITED-52
EP  - INVITED-59
UR  - https://hdl.handle.net/21.15107/rcub_cer_6884
ER  - 

@conference{
author = "Ljubić, Verica and Cvetković, Slobodan and Perendija, Jovana and Djukić-Vuković, Aleksandra and Popović, Mina",
year = "2022",
abstract = "Lactic acid bacteria synthesize metabolites that can be used in pharmaceutical, food, water, and dairy industries. Hence, in this study, a novel exopolysaccharide was extracted and isolated from the probiotic strain L. reuteri B2, assessed on possible application as a biosorbent for removal of heavy metals from the contaminated water. Novel exopolysaccharide was characterized using SEM, and TGA/DTG analysis. Our hypothesis was that if this EPS can be used as potentinal biomaterial, than its application for nickel removal from the contaminated water can be performed. After biosorption experiments, the removal efficiency of Ni2+ from the aqueous solution was 92.96%. According to these results, this exopolysaccharide can be considered as a very promising biomaterial for application in different industries, from pharmacy to treatments of contaminted water, Bakterije mlečne kiseline sintetišu metabolite koji se mogu koristiti u farmaceutskoj, prehrambenoj,
vodenoj i mlečnoj industriji. S toga, u ovoj studiji je ekstrahovan i izolovan novi egzopolisaharid iz
probiotičkog soja L. reuteri B2, koji je testiran za moguću primenu kao biosorbent za uklanjanje
teških metala iz kontaminirane vode. Novi egzopolisaharid je okarakterisan korišćenjem SEM i
TGA/DTG analize. Naša hipoteza je bila da ako se ovaj EPS može koristiti kao potencijalni
biomaterijal, onda se može primeniti za uklanjanje nikla iz kontaminirane vode. Nakon
eksperimenata biosorpcije, efikasnost uklanjanja Ni2+ jona iz vodenog rastvora bila je 92,96%.
Prema ovim rezultatima, ovaj egzopolisaharid se može smatrati veoma perspektivnim biomaterijalom za primenu u različitim industrijama, od farmacije do tretmana kontaminirane vode",
publisher = "Belgrade : Serbian Society of Corrosion and Materials  Protection UISKOZAM / Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM",
journal = "Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare",
title = "Extraction of novel exopolysaccharide as potential biosorbent for removal of Ni2+ ions from contaminated water",
pages = "INVITED-52-INVITED-59",
url = "https://hdl.handle.net/21.15107/rcub_cer_6884"
}

Ljubić, V., Cvetković, S., Perendija, J., Djukić-Vuković, A.,& Popović, M.. (2022). Extraction of novel exopolysaccharide as potential biosorbent for removal of Ni2+ ions from contaminated water. in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare
Belgrade : Serbian Society of Corrosion and Materials  Protection UISKOZAM / Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM., INVITED-52-INVITED-59.
https://hdl.handle.net/21.15107/rcub_cer_6884

Ljubić V, Cvetković S, Perendija J, Djukić-Vuković A, Popović M. Extraction of novel exopolysaccharide as potential biosorbent for removal of Ni2+ ions from contaminated water. in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare. 2022;:INVITED-52-INVITED-59.
https://hdl.handle.net/21.15107/rcub_cer_6884 .

Ljubić, Verica, Cvetković, Slobodan, Perendija, Jovana, Djukić-Vuković, Aleksandra, Popović, Mina, "Extraction of novel exopolysaccharide as potential biosorbent for removal of Ni2+ ions from contaminated water" in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare (2022):INVITED-52-INVITED-59,
https://hdl.handle.net/21.15107/rcub_cer_6884 .

TY  - CONF
AU  - Popović, Mina
AU  - Marinković, Aleksandar
AU  - Pavlović, Vladimir
AU  - Ljubić, Verica
AU  - Veličković, Zlate
AU  - Perendija, Jovana
AU  - Vasiljević, Ljubica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7088
AB  - The very serious problem in developing countries has become the presence of the arsenic
contamination in the water for the public health. Still, millions of people in their daily lives are
highly dependent on groundwater containing high levels of arsenic, as well as, in drinking water,
which causes excessive exposure to this toxic element, due to the high cost and lack of watertreatment infrastructures. The maximal allowed concentration (MAC) for As(V) in water
decreased from 50 to 10 μg/l, by considering the harmful effects of arsenic on the environment
and human health. In order to achieve the established rigorous requirements, it is necessary to
develop new materials and design new forms of adsorbents that can reduce the concentration of
arsenic in drinking water. Therefore, in this study, the target was to synthesize magnetite/3Dprinted wollastonite hybrid sorbent that was used to remove As(V) from aqueous solutions. 3Dprinted wollastonite was obtained using the 3D-printing technique from
methylhydrocyclosiloxane and calcium carbonate as precursors. Synthesis of adsorption
material was carried out by depositing magnetite from an iron(II)-sulfate solution by potassium
hydroxide on 3D-printed wollastonite. Characterization of the obtained material was performed
using FTIR and SEM. An investigation of the sorption properties of hybrid adsorbents was
carried out for As(V) removal - one relative to the starting pH value of the solution, the
adsorbent mass and the temperature and the adsorption time. Determination of adsorption
parameters was performed by applying Langmuir, Freundlich and Dubinin-Radushkevich
equations. Determination of kinetics and adhesion parameters at three different temperatures
enabled the calculation of thermodynamic and activation parameters of the adsorption process,
which contributed to a better understanding of the adsorption mechanism. Also, based on the
results, it was noticed that the highest adsorption capacity of the mentioned material for arsenic
ions at a temperature of 45 °C. The compact filter presented in this report should serve well as a
small-scale water-purification unit that can be easily carried to any site having water
contaminated with arsenic
PB  - Zvornik : Faculty of Technology
C3  - Book of Abstracts - VII International Congress “Engineering, Environment and Materials in Process Industry“, March 17-19 2021, Jahorina, Republic of Srpska, Bosnia and Herzegovina
T1  - Removal of the As(V) from the water using magnetite/3D-printed wollastonite hybrid sorbent
SP  - 186
EP  - 186
UR  - https://hdl.handle.net/21.15107/rcub_cer_7088
ER  - 

@conference{
author = "Popović, Mina and Marinković, Aleksandar and Pavlović, Vladimir and Ljubić, Verica and Veličković, Zlate and Perendija, Jovana and Vasiljević, Ljubica",
year = "2021",
abstract = "The very serious problem in developing countries has become the presence of the arsenic
contamination in the water for the public health. Still, millions of people in their daily lives are
highly dependent on groundwater containing high levels of arsenic, as well as, in drinking water,
which causes excessive exposure to this toxic element, due to the high cost and lack of watertreatment infrastructures. The maximal allowed concentration (MAC) for As(V) in water
decreased from 50 to 10 μg/l, by considering the harmful effects of arsenic on the environment
and human health. In order to achieve the established rigorous requirements, it is necessary to
develop new materials and design new forms of adsorbents that can reduce the concentration of
arsenic in drinking water. Therefore, in this study, the target was to synthesize magnetite/3Dprinted wollastonite hybrid sorbent that was used to remove As(V) from aqueous solutions. 3Dprinted wollastonite was obtained using the 3D-printing technique from
methylhydrocyclosiloxane and calcium carbonate as precursors. Synthesis of adsorption
material was carried out by depositing magnetite from an iron(II)-sulfate solution by potassium
hydroxide on 3D-printed wollastonite. Characterization of the obtained material was performed
using FTIR and SEM. An investigation of the sorption properties of hybrid adsorbents was
carried out for As(V) removal - one relative to the starting pH value of the solution, the
adsorbent mass and the temperature and the adsorption time. Determination of adsorption
parameters was performed by applying Langmuir, Freundlich and Dubinin-Radushkevich
equations. Determination of kinetics and adhesion parameters at three different temperatures
enabled the calculation of thermodynamic and activation parameters of the adsorption process,
which contributed to a better understanding of the adsorption mechanism. Also, based on the
results, it was noticed that the highest adsorption capacity of the mentioned material for arsenic
ions at a temperature of 45 °C. The compact filter presented in this report should serve well as a
small-scale water-purification unit that can be easily carried to any site having water
contaminated with arsenic",
publisher = "Zvornik : Faculty of Technology",
journal = "Book of Abstracts - VII International Congress “Engineering, Environment and Materials in Process Industry“, March 17-19 2021, Jahorina, Republic of Srpska, Bosnia and Herzegovina",
title = "Removal of the As(V) from the water using magnetite/3D-printed wollastonite hybrid sorbent",
pages = "186-186",
url = "https://hdl.handle.net/21.15107/rcub_cer_7088"
}

Popović, M., Marinković, A., Pavlović, V., Ljubić, V., Veličković, Z., Perendija, J.,& Vasiljević, L.. (2021). Removal of the As(V) from the water using magnetite/3D-printed wollastonite hybrid sorbent. in Book of Abstracts - VII International Congress “Engineering, Environment and Materials in Process Industry“, March 17-19 2021, Jahorina, Republic of Srpska, Bosnia and Herzegovina
Zvornik : Faculty of Technology., 186-186.
https://hdl.handle.net/21.15107/rcub_cer_7088

Popović M, Marinković A, Pavlović V, Ljubić V, Veličković Z, Perendija J, Vasiljević L. Removal of the As(V) from the water using magnetite/3D-printed wollastonite hybrid sorbent. in Book of Abstracts - VII International Congress “Engineering, Environment and Materials in Process Industry“, March 17-19 2021, Jahorina, Republic of Srpska, Bosnia and Herzegovina. 2021;:186-186.
https://hdl.handle.net/21.15107/rcub_cer_7088 .

Popović, Mina, Marinković, Aleksandar, Pavlović, Vladimir, Ljubić, Verica, Veličković, Zlate, Perendija, Jovana, Vasiljević, Ljubica, "Removal of the As(V) from the water using magnetite/3D-printed wollastonite hybrid sorbent" in Book of Abstracts - VII International Congress “Engineering, Environment and Materials in Process Industry“, March 17-19 2021, Jahorina, Republic of Srpska, Bosnia and Herzegovina (2021):186-186,
https://hdl.handle.net/21.15107/rcub_cer_7088 .

TY  - CONF
AU  - Perendija, Jovana
AU  - Marinković, Aleksandar
AU  - Popović, Mina
AU  - Milošević, Dragana
AU  - Ljubić, Verica
AU  - Milošević, Milena
AU  - Vasiljević, Ljubica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6469
AB  - Aquatic pollution caused by pesticides as a consequence through run-off, leaching, and subsurface drainage, may pose a serious health hazard for living being and ecosystems due to
pesticides persistent nature and bio-magnification. Since most organic pesticides are nondegradable and carcinogenic, they represent a potent category of water contaminants. The aim
of the presented work was to develope functional biodegradable membranes which could be used
as an efficient adsorbent for the removal of pesticides (difenoconazole and thiophanate-methyl)
from aquatic solutions. The bio-renewable membranes (Cell-El and Cell-El-Ta) based on epoxyamino reactivity of the Cellulose fibres (Cell) modified with diethylenetriamine (Cell‒Deta), (3-
Glycidyloxypropyl)trimethoxysilane (Cell-Glymo), Lignin modified with epichlorohydrine (El)
and Tannic acid (Ta), as an additional crosslinker, were produced by optimized methods through
the application of novel approaches. The membrane preparation was conducted at the
appropriate molar ratio of functional groups designed to provide numbers of residual
functionalities effective for pesticide removal. The membranes were characterized by FourierTransform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). FTIR
spectral analysis was used to identify the characteristic functional groups of produced
membranes and spectral pattern change as a result of the formation of coordination complexes
of pesticides with surface functionalities. Controlled modification of Cell fibre and subsequent
production of Cell-El and Cell-El-Ta membrane causes change fibres surface and material
morphology, and SEM analysis proved successful modification and membrane production with
formation a large number of fibres interconnections. The effects of contact time, temperature,
and initial concentration of pesticides on adsorption were studied in a batch system. The
Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherm models were used to
evaluate the adsorption process, and to predict the adsorption capacity of the adsorbents. The
experimental results were best fitted with the Langmuir isotherm model. The calculated
capacities: 32.2, 69.3, 45.1 and 83.2 mg g-1 for difenoconazole and thiophanate-methyl using
Cell-El and Cell-El-Ta, respectively, were obtained from Langmuir model fitting at 25oC. The
thermodynamic parameters indicated spontaneous and low endothermic processes. The present
study demonstrates that prepared membranes could be an effective and low-cost adsorbent to
prevent contamination of water and consequently help minimize the environmental impact
caused by the pesticides.
PB  - Zvornik : Faculty of Technology
C3  - Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
T1  - Bio-renewable membranes based on modified cellulose, lignin, and tannic acid for difenoconazole and thiophanate-methyl removal
SP  - 69
EP  - 69
UR  - https://hdl.handle.net/21.15107/rcub_cer_6469
ER  - 

@conference{
author = "Perendija, Jovana and Marinković, Aleksandar and Popović, Mina and Milošević, Dragana and Ljubić, Verica and Milošević, Milena and Vasiljević, Ljubica",
year = "2021",
abstract = "Aquatic pollution caused by pesticides as a consequence through run-off, leaching, and subsurface drainage, may pose a serious health hazard for living being and ecosystems due to
pesticides persistent nature and bio-magnification. Since most organic pesticides are nondegradable and carcinogenic, they represent a potent category of water contaminants. The aim
of the presented work was to develope functional biodegradable membranes which could be used
as an efficient adsorbent for the removal of pesticides (difenoconazole and thiophanate-methyl)
from aquatic solutions. The bio-renewable membranes (Cell-El and Cell-El-Ta) based on epoxyamino reactivity of the Cellulose fibres (Cell) modified with diethylenetriamine (Cell‒Deta), (3-
Glycidyloxypropyl)trimethoxysilane (Cell-Glymo), Lignin modified with epichlorohydrine (El)
and Tannic acid (Ta), as an additional crosslinker, were produced by optimized methods through
the application of novel approaches. The membrane preparation was conducted at the
appropriate molar ratio of functional groups designed to provide numbers of residual
functionalities effective for pesticide removal. The membranes were characterized by FourierTransform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). FTIR
spectral analysis was used to identify the characteristic functional groups of produced
membranes and spectral pattern change as a result of the formation of coordination complexes
of pesticides with surface functionalities. Controlled modification of Cell fibre and subsequent
production of Cell-El and Cell-El-Ta membrane causes change fibres surface and material
morphology, and SEM analysis proved successful modification and membrane production with
formation a large number of fibres interconnections. The effects of contact time, temperature,
and initial concentration of pesticides on adsorption were studied in a batch system. The
Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) isotherm models were used to
evaluate the adsorption process, and to predict the adsorption capacity of the adsorbents. The
experimental results were best fitted with the Langmuir isotherm model. The calculated
capacities: 32.2, 69.3, 45.1 and 83.2 mg g-1 for difenoconazole and thiophanate-methyl using
Cell-El and Cell-El-Ta, respectively, were obtained from Langmuir model fitting at 25oC. The
thermodynamic parameters indicated spontaneous and low endothermic processes. The present
study demonstrates that prepared membranes could be an effective and low-cost adsorbent to
prevent contamination of water and consequently help minimize the environmental impact
caused by the pesticides.",
publisher = "Zvornik : Faculty of Technology",
journal = "Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina",
title = "Bio-renewable membranes based on modified cellulose, lignin, and tannic acid for difenoconazole and thiophanate-methyl removal",
pages = "69-69",
url = "https://hdl.handle.net/21.15107/rcub_cer_6469"
}

Perendija, J., Marinković, A., Popović, M., Milošević, D., Ljubić, V., Milošević, M.,& Vasiljević, L.. (2021). Bio-renewable membranes based on modified cellulose, lignin, and tannic acid for difenoconazole and thiophanate-methyl removal. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina
Zvornik : Faculty of Technology., 69-69.
https://hdl.handle.net/21.15107/rcub_cer_6469

Perendija J, Marinković A, Popović M, Milošević D, Ljubić V, Milošević M, Vasiljević L. Bio-renewable membranes based on modified cellulose, lignin, and tannic acid for difenoconazole and thiophanate-methyl removal. in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina. 2021;:69-69.
https://hdl.handle.net/21.15107/rcub_cer_6469 .

Perendija, Jovana, Marinković, Aleksandar, Popović, Mina, Milošević, Dragana, Ljubić, Verica, Milošević, Milena, Vasiljević, Ljubica, "Bio-renewable membranes based on modified cellulose, lignin, and tannic acid for difenoconazole and thiophanate-methyl removal" in Book of Abstracts - VII International Congress Engineering, Environment and Materials in Process Industry, 17th-19th March 2021, Jahorina - Republic of Srpska, Bosnia and Herzegovina (2021):69-69,
https://hdl.handle.net/21.15107/rcub_cer_6469 .

TY  - CONF
AU  - Vidović, Milka M.
AU  - Gordanić, Vojin
AU  - Trajković, Ivana
AU  - Ljubić, Verica
AU  - Spasic Jokic, Vesna
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7157
AB  - In the research phase of nuclear materials from the Backa area (NW of Serbia), hydrogeochemical prospecting was applied, which covers an area of about 500 km2. Samples were collected from surface water, from sources and wells, and bores. Combined hydrogeochemical methods included the examination of U, Ra, Pb, Zn, Cu, Mo, Li, Sr; anions HCO3-, SO42-, Cl-; cations Ca2+, Mg2+, Na+, K+, as well as the determination of SiO2, Eh, Ep and pH values. Additional testing determined the water content: NO3, F, Br, J, P. Value content of uranium (U) varied in the range of 0.1 - 125 ppb; Ra 0.026 - 0.33 Bq/l; Rn 1.45 - 32.63 Bq/l. At selected locations the uranium content in the A - horizon (15 - 20 cm) were determined. According to the geological and structural characteristics of the research area, results are shown on the maps in scale of 1:50000 and on appropriate diagrams and tables. The aim of this study was the application of geochemical prospecting method for the identification of geopathogenic zones of the influence of natural radionuclides in the rural settlements environment.
PB  - International Multidisciplinary Scientific GeoConferences (SGEM)
C3  - Conference proceedings - 19h International Multidisciplinary Scientific GeoConference, SGEM 2019
T1  - Hydrogeochemical investigation of the influence of natural radionuclides on the environment, NW Backa, Serbia
VL  - 19
SP  - 331
EP  - 338
UR  - https://hdl.handle.net/21.15107/rcub_cer_7157
ER  - 

@conference{
author = "Vidović, Milka M. and Gordanić, Vojin and Trajković, Ivana and Ljubić, Verica and Spasic Jokic, Vesna",
year = "2019",
abstract = "In the research phase of nuclear materials from the Backa area (NW of Serbia), hydrogeochemical prospecting was applied, which covers an area of about 500 km2. Samples were collected from surface water, from sources and wells, and bores. Combined hydrogeochemical methods included the examination of U, Ra, Pb, Zn, Cu, Mo, Li, Sr; anions HCO3-, SO42-, Cl-; cations Ca2+, Mg2+, Na+, K+, as well as the determination of SiO2, Eh, Ep and pH values. Additional testing determined the water content: NO3, F, Br, J, P. Value content of uranium (U) varied in the range of 0.1 - 125 ppb; Ra 0.026 - 0.33 Bq/l; Rn 1.45 - 32.63 Bq/l. At selected locations the uranium content in the A - horizon (15 - 20 cm) were determined. According to the geological and structural characteristics of the research area, results are shown on the maps in scale of 1:50000 and on appropriate diagrams and tables. The aim of this study was the application of geochemical prospecting method for the identification of geopathogenic zones of the influence of natural radionuclides in the rural settlements environment.",
publisher = "International Multidisciplinary Scientific GeoConferences (SGEM)",
journal = "Conference proceedings - 19h International Multidisciplinary Scientific GeoConference, SGEM 2019",
title = "Hydrogeochemical investigation of the influence of natural radionuclides on the environment, NW Backa, Serbia",
volume = "19",
pages = "331-338",
url = "https://hdl.handle.net/21.15107/rcub_cer_7157"
}

Vidović, M. M., Gordanić, V., Trajković, I., Ljubić, V.,& Spasic Jokic, V.. (2019). Hydrogeochemical investigation of the influence of natural radionuclides on the environment, NW Backa, Serbia. in Conference proceedings - 19h International Multidisciplinary Scientific GeoConference, SGEM 2019
International Multidisciplinary Scientific GeoConferences (SGEM)., 19, 331-338.
https://hdl.handle.net/21.15107/rcub_cer_7157

Vidović MM, Gordanić V, Trajković I, Ljubić V, Spasic Jokic V. Hydrogeochemical investigation of the influence of natural radionuclides on the environment, NW Backa, Serbia. in Conference proceedings - 19h International Multidisciplinary Scientific GeoConference, SGEM 2019. 2019;19:331-338.
https://hdl.handle.net/21.15107/rcub_cer_7157 .

Vidović, Milka M., Gordanić, Vojin, Trajković, Ivana, Ljubić, Verica, Spasic Jokic, Vesna, "Hydrogeochemical investigation of the influence of natural radionuclides on the environment, NW Backa, Serbia" in Conference proceedings - 19h International Multidisciplinary Scientific GeoConference, SGEM 2019, 19 (2019):331-338,
https://hdl.handle.net/21.15107/rcub_cer_7157 .