TY  - JOUR
AU  - Šolević, Tatjana
AU  - Jovančićević, Branimir
AU  - Vrvić, Miroslav
AU  - Wehner, H
PY  - 2003
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2679
AB  - The influence of the intensity of interaction between oil pollutants and ground waters in alluvial sediments on the effect of microbial activity was investigated in this work. The study was based on a comparison of detailed analyses of two fractions of an oil pollutant originating from a Danube alluvial formation near the Pancevo Oil Refinery: fraction 1. separated from the aqueous layer by decantation. presumed to have been in less intensive interaction with water. and fraction 2. isolated from the aqueous emulsion by extraction with chloroform. presumed to have been in stronger interaction with water, Both fractions were shown to originate from the same type of oil pollutant. Nevertheless. significant compositional differences between the two fractions were observed. A significantly pronounced domination of even carbon number homologues of C-18-C-24 n-alkanes in fraction 2. atypical for crude oil pollutants, compared to the corresponding distribution observed in fraction 1, suggested a more intense activity. i.e., a much better effect of microorganisms in direct contact with the oil pollutant within the aqueous environment. The identification of even carbon number C-14-C-18 n-alcohols and C-14-C-18 fatty acids, as well as cholesterol, in fraction 2, suggested that microorganisms of the algal type in non-photosynthetic conditions were most probably responsible for the mentioned microbial processes.
AB  - Procenjivan je uticaj intenziteta interakcije između naftnog zagađivača i podzemne vode aluvijalne formacije na intenzitet mikrobiološkog dejstva. U tom cilju poređani su sastavi dve frakcije naftnog zagađivača iz jednog pijezometra (krug Rafinerije nafte Pančevo, aluvijalna formacija reke Dunav): frakcije 1, odvojene od vode dekantovanjem (slabija interakcija sa vodom) i frakcije 2, izdvojene iz vode ekstrakcijom (jača interakcija sa vodom). Dokazano je da obe frakcije vode poreklo od istog naftnog zagađivača. Znatno veća obilnost normalnih alkana sa izrazitom dominacijom parnih homologa (C18–C24) u frakciji 2 nego u frakciji 1 ukazuje na intenzivniju aktivnost mikroorganizama u vodenoj sredini. Alkoholi normalnog niza sa parnim brojem ugljenikovih atoma (C14–C20), holesterol i masne kiseline normalnog niza sa parnim brojem ugljenikovih atoma (C14–C18) u frakciji 2 dokaz su da su za mikrobilošku aktivnost u nefotosintetičkim uslovima odgovorni mikroorganizmi algalnog tipa.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Oil pollutants in alluvial sediments - influence of the intensity of contact with ground waters on the effect of microorganisms
T1  - Naftni zagađivači u aluvijalnim sedimentima - uticaj intenziteta kontakta sa podzemnim vodama na dejstvo mikroorganizama
VL  - 68
IS  - 3
SP  - 227
EP  - 234
DO  - 10.2298/JSC0303227S
ER  - 

@article{
author = "Šolević, Tatjana and Jovančićević, Branimir and Vrvić, Miroslav and Wehner, H",
year = "2003",
abstract = "The influence of the intensity of interaction between oil pollutants and ground waters in alluvial sediments on the effect of microbial activity was investigated in this work. The study was based on a comparison of detailed analyses of two fractions of an oil pollutant originating from a Danube alluvial formation near the Pancevo Oil Refinery: fraction 1. separated from the aqueous layer by decantation. presumed to have been in less intensive interaction with water. and fraction 2. isolated from the aqueous emulsion by extraction with chloroform. presumed to have been in stronger interaction with water, Both fractions were shown to originate from the same type of oil pollutant. Nevertheless. significant compositional differences between the two fractions were observed. A significantly pronounced domination of even carbon number homologues of C-18-C-24 n-alkanes in fraction 2. atypical for crude oil pollutants, compared to the corresponding distribution observed in fraction 1, suggested a more intense activity. i.e., a much better effect of microorganisms in direct contact with the oil pollutant within the aqueous environment. The identification of even carbon number C-14-C-18 n-alcohols and C-14-C-18 fatty acids, as well as cholesterol, in fraction 2, suggested that microorganisms of the algal type in non-photosynthetic conditions were most probably responsible for the mentioned microbial processes., Procenjivan je uticaj intenziteta interakcije između naftnog zagađivača i podzemne vode aluvijalne formacije na intenzitet mikrobiološkog dejstva. U tom cilju poređani su sastavi dve frakcije naftnog zagađivača iz jednog pijezometra (krug Rafinerije nafte Pančevo, aluvijalna formacija reke Dunav): frakcije 1, odvojene od vode dekantovanjem (slabija interakcija sa vodom) i frakcije 2, izdvojene iz vode ekstrakcijom (jača interakcija sa vodom). Dokazano je da obe frakcije vode poreklo od istog naftnog zagađivača. Znatno veća obilnost normalnih alkana sa izrazitom dominacijom parnih homologa (C18–C24) u frakciji 2 nego u frakciji 1 ukazuje na intenzivniju aktivnost mikroorganizama u vodenoj sredini. Alkoholi normalnog niza sa parnim brojem ugljenikovih atoma (C14–C20), holesterol i masne kiseline normalnog niza sa parnim brojem ugljenikovih atoma (C14–C18) u frakciji 2 dokaz su da su za mikrobilošku aktivnost u nefotosintetičkim uslovima odgovorni mikroorganizmi algalnog tipa.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Oil pollutants in alluvial sediments - influence of the intensity of contact with ground waters on the effect of microorganisms, Naftni zagađivači u aluvijalnim sedimentima - uticaj intenziteta kontakta sa podzemnim vodama na dejstvo mikroorganizama",
volume = "68",
number = "3",
pages = "227-234",
doi = "10.2298/JSC0303227S"
}

Šolević, T., Jovančićević, B., Vrvić, M.,& Wehner, H.. (2003). Oil pollutants in alluvial sediments - influence of the intensity of contact with ground waters on the effect of microorganisms. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 68(3), 227-234.
https://doi.org/10.2298/JSC0303227S

Šolević T, Jovančićević B, Vrvić M, Wehner H. Oil pollutants in alluvial sediments - influence of the intensity of contact with ground waters on the effect of microorganisms. in Journal of the Serbian Chemical Society. 2003;68(3):227-234.
doi:10.2298/JSC0303227S .

Šolević, Tatjana, Jovančićević, Branimir, Vrvić, Miroslav, Wehner, H, "Oil pollutants in alluvial sediments - influence of the intensity of contact with ground waters on the effect of microorganisms" in Journal of the Serbian Chemical Society, 68, no. 3 (2003):227-234,
https://doi.org/10.2298/JSC0303227S . .

TY  - JOUR
AU  - Jovančićević, Branimir
AU  - Wehner, H.
AU  - Scheeder, G.
AU  - Stojanović, Ksenija
AU  - Šainović, Aleksandar M.
AU  - Cvetković, Olga
AU  - Ercegovac, Marko
AU  - Vitorović, Dragomir K.
PY  - 2002
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/63
AB  - In a search for source rocks of the crude oils of the Drmno depression (southern part of the Pannonian Basin, Serbia), based on bulk and specific organic geochemical parameters, six out of eight Sirakovo, Bubušinac and Bradarac sedimentary core samples were found to possess typical source rock characteristics. By comparing the results observed for these sedimentary samples with the corresponding properties of the crude oils from the Sirakovo and Bradarac oil-gas fields, a positive organic geochemical oil-source rock correlation was experienced for the first time within this basin. This finding may be considered as an important step towards the ultimate organic geochemical/geological interpretation of the Drmno depression.
AB  - Ispitivani su sedimenti iz bušotina koje pripadaju lokacijama Sirakovo Bubušinac i Bradarac (depresija Drmno). Primenjene su organsko-geohemijske metode (određivanje sadržaja organskog ugljenika, bitumena i ugljovodonika, kao i određivanje raspodele i obilnosti bioloških markera tipa n-alkana izoprenoidnih alifatičnih alkana, triterpana i sterana) sa ciljem da se proceni njihova naftna potencijalnost. Za šest uzoraka utvrđen je visok stepen maturisanosti organske supstance, pripadnost "oil generation" fazi (Rr = 0,70 – 0,80 %), tercijarna starost i pretežno terestrijalno poreklo. Poređenjem sa sirovim naftama iz već otkrivenih naftnih ležišta bliskog lokaliteta (Sirakovo i Bradarac) utvrđena je značajna sličnost i prema maturisanosti i prema poreklu, na osnovu čega je između ispitivanih uzoraka sedimenata i nafti, prvi put kada je u pitanju depresija Drmno, definisana pozitivna korelacija nafta-izvorna stena.
PB  - Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Search for source rocks of the crude oils of the Drmno depression, southern part of the Pannonian Basin, Serbia
T1  - Traganje za izvornim stenama nafti depresije Drmno, južni deo Panonskog basena, Srbija
VL  - 67
IS  - 8-9
SP  - 553
EP  - 566
DO  - 10.2298/JSC0209553J
ER  - 

@article{
author = "Jovančićević, Branimir and Wehner, H. and Scheeder, G. and Stojanović, Ksenija and Šainović, Aleksandar M. and Cvetković, Olga and Ercegovac, Marko and Vitorović, Dragomir K.",
year = "2002",
abstract = "In a search for source rocks of the crude oils of the Drmno depression (southern part of the Pannonian Basin, Serbia), based on bulk and specific organic geochemical parameters, six out of eight Sirakovo, Bubušinac and Bradarac sedimentary core samples were found to possess typical source rock characteristics. By comparing the results observed for these sedimentary samples with the corresponding properties of the crude oils from the Sirakovo and Bradarac oil-gas fields, a positive organic geochemical oil-source rock correlation was experienced for the first time within this basin. This finding may be considered as an important step towards the ultimate organic geochemical/geological interpretation of the Drmno depression., Ispitivani su sedimenti iz bušotina koje pripadaju lokacijama Sirakovo Bubušinac i Bradarac (depresija Drmno). Primenjene su organsko-geohemijske metode (određivanje sadržaja organskog ugljenika, bitumena i ugljovodonika, kao i određivanje raspodele i obilnosti bioloških markera tipa n-alkana izoprenoidnih alifatičnih alkana, triterpana i sterana) sa ciljem da se proceni njihova naftna potencijalnost. Za šest uzoraka utvrđen je visok stepen maturisanosti organske supstance, pripadnost "oil generation" fazi (Rr = 0,70 – 0,80 %), tercijarna starost i pretežno terestrijalno poreklo. Poređenjem sa sirovim naftama iz već otkrivenih naftnih ležišta bliskog lokaliteta (Sirakovo i Bradarac) utvrđena je značajna sličnost i prema maturisanosti i prema poreklu, na osnovu čega je između ispitivanih uzoraka sedimenata i nafti, prvi put kada je u pitanju depresija Drmno, definisana pozitivna korelacija nafta-izvorna stena.",
publisher = "Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Search for source rocks of the crude oils of the Drmno depression, southern part of the Pannonian Basin, Serbia, Traganje za izvornim stenama nafti depresije Drmno, južni deo Panonskog basena, Srbija",
volume = "67",
number = "8-9",
pages = "553-566",
doi = "10.2298/JSC0209553J"
}

Jovančićević, B., Wehner, H., Scheeder, G., Stojanović, K., Šainović, A. M., Cvetković, O., Ercegovac, M.,& Vitorović, D. K.. (2002). Search for source rocks of the crude oils of the Drmno depression, southern part of the Pannonian Basin, Serbia. in Journal of the Serbian Chemical Society
Serbian Chemical Society., 67(8-9), 553-566.
https://doi.org/10.2298/JSC0209553J

Jovančićević B, Wehner H, Scheeder G, Stojanović K, Šainović AM, Cvetković O, Ercegovac M, Vitorović DK. Search for source rocks of the crude oils of the Drmno depression, southern part of the Pannonian Basin, Serbia. in Journal of the Serbian Chemical Society. 2002;67(8-9):553-566.
doi:10.2298/JSC0209553J .

Jovančićević, Branimir, Wehner, H., Scheeder, G., Stojanović, Ksenija, Šainović, Aleksandar M., Cvetković, Olga, Ercegovac, Marko, Vitorović, Dragomir K., "Search for source rocks of the crude oils of the Drmno depression, southern part of the Pannonian Basin, Serbia" in Journal of the Serbian Chemical Society, 67, no. 8-9 (2002):553-566,
https://doi.org/10.2298/JSC0209553J . .

TY  - JOUR
AU  - Jovančićević, Branimir
AU  - Vitorović, Dragomir K.
AU  - Šaban, M.
AU  - Wehner, H.
PY  - 1992
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4323
AB  - In order to evaluate the adsorption and catalytic effects of indigenous carbonates and silicates on the organic matter of Aleksinac oil shale, the free and the bound bitumens were isolated and analyzed by organic geochemical methods. The differences in the gross compositions indicated an adsorption effect of both the carbonates and silicates in the examined oil shale. The maturation parameters, based on n-alkanes and isoprenoid alkanes pristane and phytane, indicated that bitumen 3 was of the highest, and bitumen 1 of the lowest, apparent maturity. The silicates were shown to have had a thermocatalytic effect on the organic matter of this sediment. Clay minerals had a catalytic effect primarily on sterane aromatization, rearrangement of steranes into diasteranes and their (20R) → (20S) isomerization. All evidence obtained by analysis of steranes and aromatic steroids suggested that the differences in bitumen compositions should be explained by the effect of clay minerals rather than by variations in the origin of the precursor biomass. © 1992.
T2  - Organic Geochemistry
T1  - Evaluation of the effects of native minerals on the organic matter of Aleksinac oil shale based on the composition of free and bound bitumens
VL  - 18
IS  - 4
SP  - 511
EP  - 519
DO  - 10.1016/0146-6380(92)90114-D
ER  - 

@article{
author = "Jovančićević, Branimir and Vitorović, Dragomir K. and Šaban, M. and Wehner, H.",
year = "1992",
abstract = "In order to evaluate the adsorption and catalytic effects of indigenous carbonates and silicates on the organic matter of Aleksinac oil shale, the free and the bound bitumens were isolated and analyzed by organic geochemical methods. The differences in the gross compositions indicated an adsorption effect of both the carbonates and silicates in the examined oil shale. The maturation parameters, based on n-alkanes and isoprenoid alkanes pristane and phytane, indicated that bitumen 3 was of the highest, and bitumen 1 of the lowest, apparent maturity. The silicates were shown to have had a thermocatalytic effect on the organic matter of this sediment. Clay minerals had a catalytic effect primarily on sterane aromatization, rearrangement of steranes into diasteranes and their (20R) → (20S) isomerization. All evidence obtained by analysis of steranes and aromatic steroids suggested that the differences in bitumen compositions should be explained by the effect of clay minerals rather than by variations in the origin of the precursor biomass. © 1992.",
journal = "Organic Geochemistry",
title = "Evaluation of the effects of native minerals on the organic matter of Aleksinac oil shale based on the composition of free and bound bitumens",
volume = "18",
number = "4",
pages = "511-519",
doi = "10.1016/0146-6380(92)90114-D"
}

Jovančićević, B., Vitorović, D. K., Šaban, M.,& Wehner, H.. (1992). Evaluation of the effects of native minerals on the organic matter of Aleksinac oil shale based on the composition of free and bound bitumens. in Organic Geochemistry, 18(4), 511-519.
https://doi.org/10.1016/0146-6380(92)90114-D

Jovančićević B, Vitorović DK, Šaban M, Wehner H. Evaluation of the effects of native minerals on the organic matter of Aleksinac oil shale based on the composition of free and bound bitumens. in Organic Geochemistry. 1992;18(4):511-519.
doi:10.1016/0146-6380(92)90114-D .

Jovančićević, Branimir, Vitorović, Dragomir K., Šaban, M., Wehner, H., "Evaluation of the effects of native minerals on the organic matter of Aleksinac oil shale based on the composition of free and bound bitumens" in Organic Geochemistry, 18, no. 4 (1992):511-519,
https://doi.org/10.1016/0146-6380(92)90114-D . .