Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons
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2017
Authors
Jednak, TanjaAvdalović, Jelena
Miletić, Srđan
Slavković-Beškoski, Latinka J.
Stanković, Dalibor M.
Milić, Jelena
Ilić, Mila
Beškoski, Vladimir P.
Gojgić-Cvijović, Gordana
Vrvić, Miroslav M.
Article (Published version)
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The aim of this paper was to investigate whether changes in the quantity and structure of humic acids (HA) occur during bioremediation of waste mazute (heavy residual fuel oil). The effects of humification on the structure of HA were evaluated by Fourier Transform Infrared Spectroscopy (FT-IR), potentiometric titrations, the ratio of absorbances at 465 and 665 nm (E4/E6 ratio) and the ratio. Also, the quality of humification was monitored by determining parameters which are important for measuring the evolution of humic substances (HS), such as CHA/CFA (the humic acidifulvic acidratio), the rate of extraction (TE) and the index of polymerization (IP). An increase of the content of HA from 0.23% to 0.70% was observed during the bioremediation process. The FT-IR spectra and 04 ratio of HA extracted at the beginning and the end of the process indicate structural changes during the bioremediation process. The groups containing aromatic and carboxylic carbon increased, resulting in HA struc...tures of higher aromaticity. An increase of the B4/E6 ratio during bioremediation treatment implied the enrichment of HA with functional oxygen groups. Potentiometric titrations of HA solution showed increases in the buffering and the redox capacities of HA during the bioremediation process. The results of parameters of humification showed an increase of the compositional carbon in HA at the end, compared to at the start, of bioremediation, while the carbon that belonged to fulvic acids (FA) reduced by 44%. Transformation into HA is the likely cause of this observed reduction. The TE and the IP demonstrated that humification occured during the bioremediation process. According to the available data, this is the first report on synthesis of HS during bioremediation of petroleum hydrocarbons. (C) 2017 Published by Elsevier Ltd.
Keywords:
Humification / Humic substances / Humic acids / Bioremediation / MazutSource:
International Biodeterioration and Biodegradation, 2017, 122, 47-52Funding / projects:
- Simultaneous Bioremediation and Soilification of Degraded Areas to Preserve Natural Resources of Biologically Active Substances, and Development and Production of Biomaterials and Dietetic Products (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43004)
DOI: 10.1016/j.ibiod.2017.04.009
ISSN: 0964-8305; 1879-0208
WoS: 000403858400006
Scopus: 2-s2.0-85018770526
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VinčaTY - JOUR AU - Jednak, Tanja AU - Avdalović, Jelena AU - Miletić, Srđan AU - Slavković-Beškoski, Latinka J. AU - Stanković, Dalibor M. AU - Milić, Jelena AU - Ilić, Mila AU - Beškoski, Vladimir P. AU - Gojgić-Cvijović, Gordana AU - Vrvić, Miroslav M. PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1611 AB - The aim of this paper was to investigate whether changes in the quantity and structure of humic acids (HA) occur during bioremediation of waste mazute (heavy residual fuel oil). The effects of humification on the structure of HA were evaluated by Fourier Transform Infrared Spectroscopy (FT-IR), potentiometric titrations, the ratio of absorbances at 465 and 665 nm (E4/E6 ratio) and the ratio. Also, the quality of humification was monitored by determining parameters which are important for measuring the evolution of humic substances (HS), such as CHA/CFA (the humic acidifulvic acidratio), the rate of extraction (TE) and the index of polymerization (IP). An increase of the content of HA from 0.23% to 0.70% was observed during the bioremediation process. The FT-IR spectra and 04 ratio of HA extracted at the beginning and the end of the process indicate structural changes during the bioremediation process. The groups containing aromatic and carboxylic carbon increased, resulting in HA structures of higher aromaticity. An increase of the B4/E6 ratio during bioremediation treatment implied the enrichment of HA with functional oxygen groups. Potentiometric titrations of HA solution showed increases in the buffering and the redox capacities of HA during the bioremediation process. The results of parameters of humification showed an increase of the compositional carbon in HA at the end, compared to at the start, of bioremediation, while the carbon that belonged to fulvic acids (FA) reduced by 44%. Transformation into HA is the likely cause of this observed reduction. The TE and the IP demonstrated that humification occured during the bioremediation process. According to the available data, this is the first report on synthesis of HS during bioremediation of petroleum hydrocarbons. (C) 2017 Published by Elsevier Ltd. T2 - International Biodeterioration and Biodegradation T1 - Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons VL - 122 SP - 47 EP - 52 DO - 10.1016/j.ibiod.2017.04.009 ER -
@article{ author = "Jednak, Tanja and Avdalović, Jelena and Miletić, Srđan and Slavković-Beškoski, Latinka J. and Stanković, Dalibor M. and Milić, Jelena and Ilić, Mila and Beškoski, Vladimir P. and Gojgić-Cvijović, Gordana and Vrvić, Miroslav M.", year = "2017", abstract = "The aim of this paper was to investigate whether changes in the quantity and structure of humic acids (HA) occur during bioremediation of waste mazute (heavy residual fuel oil). The effects of humification on the structure of HA were evaluated by Fourier Transform Infrared Spectroscopy (FT-IR), potentiometric titrations, the ratio of absorbances at 465 and 665 nm (E4/E6 ratio) and the ratio. Also, the quality of humification was monitored by determining parameters which are important for measuring the evolution of humic substances (HS), such as CHA/CFA (the humic acidifulvic acidratio), the rate of extraction (TE) and the index of polymerization (IP). An increase of the content of HA from 0.23% to 0.70% was observed during the bioremediation process. The FT-IR spectra and 04 ratio of HA extracted at the beginning and the end of the process indicate structural changes during the bioremediation process. The groups containing aromatic and carboxylic carbon increased, resulting in HA structures of higher aromaticity. An increase of the B4/E6 ratio during bioremediation treatment implied the enrichment of HA with functional oxygen groups. Potentiometric titrations of HA solution showed increases in the buffering and the redox capacities of HA during the bioremediation process. The results of parameters of humification showed an increase of the compositional carbon in HA at the end, compared to at the start, of bioremediation, while the carbon that belonged to fulvic acids (FA) reduced by 44%. Transformation into HA is the likely cause of this observed reduction. The TE and the IP demonstrated that humification occured during the bioremediation process. According to the available data, this is the first report on synthesis of HS during bioremediation of petroleum hydrocarbons. (C) 2017 Published by Elsevier Ltd.", journal = "International Biodeterioration and Biodegradation", title = "Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons", volume = "122", pages = "47-52", doi = "10.1016/j.ibiod.2017.04.009" }
Jednak, T., Avdalović, J., Miletić, S., Slavković-Beškoski, L. J., Stanković, D. M., Milić, J., Ilić, M., Beškoski, V. P., Gojgić-Cvijović, G.,& Vrvić, M. M.. (2017). Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons. in International Biodeterioration and Biodegradation, 122, 47-52. https://doi.org/10.1016/j.ibiod.2017.04.009
Jednak T, Avdalović J, Miletić S, Slavković-Beškoski LJ, Stanković DM, Milić J, Ilić M, Beškoski VP, Gojgić-Cvijović G, Vrvić MM. Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons. in International Biodeterioration and Biodegradation. 2017;122:47-52. doi:10.1016/j.ibiod.2017.04.009 .
Jednak, Tanja, Avdalović, Jelena, Miletić, Srđan, Slavković-Beškoski, Latinka J., Stanković, Dalibor M., Milić, Jelena, Ilić, Mila, Beškoski, Vladimir P., Gojgić-Cvijović, Gordana, Vrvić, Miroslav M., "Transformation and synthesis of humic substances during bioremediation of petroleum hydrocarbons" in International Biodeterioration and Biodegradation, 122 (2017):47-52, https://doi.org/10.1016/j.ibiod.2017.04.009 . .