TY  - CONF
AU  - Kovačina, Jovanka
AU  - Jegdić, Bore
AU  - Marunkić, Dunja
AU  - Simović, Anđela
AU  - Lazić, Dragana
AU  - Marinković, Aleksandar
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7066
AB  - Corrosion, although a natural process, presents a costly problem with the possibly dangerous
outcome. Mild steel, which is an alloy used in many industrial applications, manifests poor
corrosion resistance when in contact with corrosive environments and even more so in presence
of chloride ions. This is a particularly important problem in a variety of industrial applications
related to oil and gas processing such as pipeline cleaning pipeline/acid descaling, and oil well
acidizing, where the use of mineral acids (commonly hydrochloric acid) is necessary for
achieving satisfying productivity levels. The most practical method to combat the corrosion issue
is the use of corrosion inhibitors. Organic inhibitors with functional groups such as –OH, –
COOH, NH2, etc, when added in small concentrations to a corrosive solution, can lower the
corrosion rate very efficiently, especially in acidic media. Being that they are also inexpensive,
these organic inhibitors are successfully used for corrosion prevention. A great variety of
organic inhibitors has opened a door to environmentally friendly corrosion inhibition. One of
the environmentally friendly organic compounds are amino acids. They are non-toxic
biomolecules completely soluble in aqueous media and are produced with high purity and at low
cost which makes them a great candidate for a safe corrosion inhibitor. The application of amino
acids and their derivatives against corrosion of iron and its alloys has been investigated so far.
Amino acid based corrosion inhibitor was synthesized by condensing formaldehyde, glyoxal, and
β-alanine, and characterized using FTIR and NMR spectroscopic methods. Imidazolium
zwitterion has been investigated as a corrosion inhibitor on mild steel in 1 M HCl solution using
electrochemical methods: electrochemical impedance (EIS) and linear polarization resistance
(LPR). Different concentrations of inhibitor were used to find the best efficiency. This compound
gave a maximum inhibition efficiency of 74.3 % at 10.7 ppm. The adsorption of inhibitor on mild
steel surface followed the Langmuir adsorption isotherm. Furthermore, electrochemical
measurement results demonstrated that inhibitors act as mixed-type inhibitors (anodic and
cathodic).
PB  - Faculty of Technology Zvornik – University of East Sarajevo
C3  - Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina
T1  - Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel
VL  - 7
SP  - 212
EP  - 212
UR  - https://hdl.handle.net/21.15107/rcub_cer_7066
ER  - 

@conference{
author = "Kovačina, Jovanka and Jegdić, Bore and Marunkić, Dunja and Simović, Anđela and Lazić, Dragana and Marinković, Aleksandar",
year = "2021",
abstract = "Corrosion, although a natural process, presents a costly problem with the possibly dangerous
outcome. Mild steel, which is an alloy used in many industrial applications, manifests poor
corrosion resistance when in contact with corrosive environments and even more so in presence
of chloride ions. This is a particularly important problem in a variety of industrial applications
related to oil and gas processing such as pipeline cleaning pipeline/acid descaling, and oil well
acidizing, where the use of mineral acids (commonly hydrochloric acid) is necessary for
achieving satisfying productivity levels. The most practical method to combat the corrosion issue
is the use of corrosion inhibitors. Organic inhibitors with functional groups such as –OH, –
COOH, NH2, etc, when added in small concentrations to a corrosive solution, can lower the
corrosion rate very efficiently, especially in acidic media. Being that they are also inexpensive,
these organic inhibitors are successfully used for corrosion prevention. A great variety of
organic inhibitors has opened a door to environmentally friendly corrosion inhibition. One of
the environmentally friendly organic compounds are amino acids. They are non-toxic
biomolecules completely soluble in aqueous media and are produced with high purity and at low
cost which makes them a great candidate for a safe corrosion inhibitor. The application of amino
acids and their derivatives against corrosion of iron and its alloys has been investigated so far.
Amino acid based corrosion inhibitor was synthesized by condensing formaldehyde, glyoxal, and
β-alanine, and characterized using FTIR and NMR spectroscopic methods. Imidazolium
zwitterion has been investigated as a corrosion inhibitor on mild steel in 1 M HCl solution using
electrochemical methods: electrochemical impedance (EIS) and linear polarization resistance
(LPR). Different concentrations of inhibitor were used to find the best efficiency. This compound
gave a maximum inhibition efficiency of 74.3 % at 10.7 ppm. The adsorption of inhibitor on mild
steel surface followed the Langmuir adsorption isotherm. Furthermore, electrochemical
measurement results demonstrated that inhibitors act as mixed-type inhibitors (anodic and
cathodic).",
publisher = "Faculty of Technology Zvornik – University of East Sarajevo",
journal = "Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina",
title = "Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel",
volume = "7",
pages = "212-212",
url = "https://hdl.handle.net/21.15107/rcub_cer_7066"
}

Kovačina, J., Jegdić, B., Marunkić, D., Simović, A., Lazić, D.,& Marinković, A.. (2021). Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina
Faculty of Technology Zvornik – University of East Sarajevo., 7, 212-212.
https://hdl.handle.net/21.15107/rcub_cer_7066

Kovačina J, Jegdić B, Marunkić D, Simović A, Lazić D, Marinković A. Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina. 2021;7:212-212.
https://hdl.handle.net/21.15107/rcub_cer_7066 .

Kovačina, Jovanka, Jegdić, Bore, Marunkić, Dunja, Simović, Anđela, Lazić, Dragana, Marinković, Aleksandar, "Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel" in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina, 7 (2021):212-212,
https://hdl.handle.net/21.15107/rcub_cer_7066 .

TY  - JOUR
AU  - Drobac, Damjana
AU  - Svirčev, Zorica
AU  - Tokodi, Nada
AU  - Vidović, Milka
AU  - Baltić, Vladimir
AU  - Božić-Krstić, Verica
AU  - Lazić, Dragana
AU  - Pavlica, Tatjana
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/874
AB  - The Primary Liver Carcinoma (PLC) is one of the most common malignant diseases in the world. In Central Serbia during the period from 2000 to 2006 the average incidence was 16.9/100 000 that complies to the European epidemiology. The main risk factors for PLC are considered to be cirrhosis of liver and viral chronic Hepatitis B and C. The goal of this research was to analyze epidemiological data of these diseases and to state the correlation between PLC, liver cirrhosis and Hepatitis B and C in Serbia. During the research period of 6 years the correlations between PLC and the corresponding risk factors were negative. For this reason it was necessary to examine other risk factors. The high incidence of PLC in Nišavski, Toplički and Šumadijski region correlate with emerging blooms of Cyanobacteria in water reservoirs supplying these areas with drinking water. Since we examined only 7 years span and have no completed cyanotoxin analysis, it is necessary to complete more research in this field. The identification of cyanotoxins as risk factors that contribute to the development of liver cancer will help in the prevention of this disease.
PB  - University of Novi Sad, Department of Geography, Tourism and Hotel Management
T2  - Geographica Pannonica
T1  - Microcystins: Potential risk factors in carcinogenesis of primary liver cancer in Serbia
VL  - 15
IS  - 3
SP  - 70
EP  - 80
DO  - 10.5937/GeoPan1103070D
ER  - 

@article{
author = "Drobac, Damjana and Svirčev, Zorica and Tokodi, Nada and Vidović, Milka and Baltić, Vladimir and Božić-Krstić, Verica and Lazić, Dragana and Pavlica, Tatjana",
year = "2011",
abstract = "The Primary Liver Carcinoma (PLC) is one of the most common malignant diseases in the world. In Central Serbia during the period from 2000 to 2006 the average incidence was 16.9/100 000 that complies to the European epidemiology. The main risk factors for PLC are considered to be cirrhosis of liver and viral chronic Hepatitis B and C. The goal of this research was to analyze epidemiological data of these diseases and to state the correlation between PLC, liver cirrhosis and Hepatitis B and C in Serbia. During the research period of 6 years the correlations between PLC and the corresponding risk factors were negative. For this reason it was necessary to examine other risk factors. The high incidence of PLC in Nišavski, Toplički and Šumadijski region correlate with emerging blooms of Cyanobacteria in water reservoirs supplying these areas with drinking water. Since we examined only 7 years span and have no completed cyanotoxin analysis, it is necessary to complete more research in this field. The identification of cyanotoxins as risk factors that contribute to the development of liver cancer will help in the prevention of this disease.",
publisher = "University of Novi Sad, Department of Geography, Tourism and Hotel Management",
journal = "Geographica Pannonica",
title = "Microcystins: Potential risk factors in carcinogenesis of primary liver cancer in Serbia",
volume = "15",
number = "3",
pages = "70-80",
doi = "10.5937/GeoPan1103070D"
}

Drobac, D., Svirčev, Z., Tokodi, N., Vidović, M., Baltić, V., Božić-Krstić, V., Lazić, D.,& Pavlica, T.. (2011). Microcystins: Potential risk factors in carcinogenesis of primary liver cancer in Serbia. in Geographica Pannonica
University of Novi Sad, Department of Geography, Tourism and Hotel Management., 15(3), 70-80.
https://doi.org/10.5937/GeoPan1103070D

Drobac D, Svirčev Z, Tokodi N, Vidović M, Baltić V, Božić-Krstić V, Lazić D, Pavlica T. Microcystins: Potential risk factors in carcinogenesis of primary liver cancer in Serbia. in Geographica Pannonica. 2011;15(3):70-80.
doi:10.5937/GeoPan1103070D .

Drobac, Damjana, Svirčev, Zorica, Tokodi, Nada, Vidović, Milka, Baltić, Vladimir, Božić-Krstić, Verica, Lazić, Dragana, Pavlica, Tatjana, "Microcystins: Potential risk factors in carcinogenesis of primary liver cancer in Serbia" in Geographica Pannonica, 15, no. 3 (2011):70-80,
https://doi.org/10.5937/GeoPan1103070D . .