| Bioremediation perspective of historically contaminated sediment with polycyclic aromatic hydrocarbons |
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| 作者姓名： | Snezana Maletic Jelena Beljin Dragana Tamindzija Marko Grgic Jelena Molnar Jazic Marijana Kragulj Isakovski Srdan Roncevic |
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| 作者单位： | Department of Chemistry |
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| 基金项目： | support of the Ministry of Education,Science and Technological Development of the Republic of Serbia(Grant No.x451-03-68/2020-14/200125)。 |
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| 摘 要： | The purpose of the current study is to compare the influence of different aerobic conditions(biostimulation(BS),bioaugmentation(BA),and a combination of biostimulation and bioaugmentation(BB))on polycyclic aromatic hydrocarbons(PAH)degradation and compare the degraded amount with single step XAD-4 extraction as a new tool for bioavailability assessment for chronically contaminated sediment samples obtained from territory of Autonomous Province Vojvodina of Serbia(S1,S2,and S3).A great number of papers dealing with biodegradation of PAHs in spiked sediment or soil have been published,but to the authors’knowledge,a limited number of papers studied aged,historically polluted sediment and a sum of chosen U.S.Environmental Protection Agency(USEPA)PAHs.A significant reduction(up to67%)in PAH concentration was observed,while the percentage of reduction varied depending on the sediment sample and treatment used.BS treatment successfully stimulated growth of indigenous bacteria.Further,PAH-degrading strain Sphingomonas paucimobilis F8 inoculated in BA and BB treatment survived for up to 7 weeks after it was suppressed by unfavorable conditions or native microbes.Degraded amounts generally showed good correlation with results obtained from XAD-4 extraction.Results obtained in the current study represent a good start for standardizing a XAD-4 extraction technique as a simplified,easier,and lower cost method for bioavailability assessment.
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| 关 键 词： | Contaminated sediment BIOAVAILABILITY PAH BIODEGRADATION |
| 收稿时间： | 17 September 2020 |
Bioremediation perspective of historically contaminated sediment with polycyclic aromatic hydrocarbons |
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| Snezana Maletic,Jelena Beljin,Dragana Tamindzija,Marko Grgic,Jelena Molnar Jazic,Marijana Kragulj Isakovski,Srdan Roncevic.Bioremediation perspective of historically contaminated sediment with polycyclic aromatic hydrocarbons[J].International Journal of Sediment Research,2021,36(4):479-488. |
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| Authors: | Sne?ana Maleti? Jelena Beljin Dragana Tamind?ija Marko Grgi? Jelena Molnar Jazi? Marijana Kragulj Isakovski Sr?an Ron?evi? |
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| Institution: | Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 3, Novi Sad, 21000, Serbia |
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| Abstract: | The purpose of the current study is to compare the influence of different aerobic conditions (biostimulation (BS), bioaugmentation (BA), and a combination of biostimulation and bioaugmentation (BB)) on polycyclic aromatic hydrocarbons (PAH) degradation and compare the degraded amount with single step XAD-4 extraction as a new tool for bioavailability assessment for chronically contaminated sediment samples obtained from territory of Autonomous Province Vojvodina of Serbia (S1, S2, and S3). A great number of papers dealing with biodegradation of PAHs in spiked sediment or soil have been published, but to the authors’ knowledge, a limited number of papers studied aged, historically polluted sediment and a sum of chosen U.S. Environmental Protection Agency (USEPA) PAHs. A significant reduction (up to 67%) in PAH concentration was observed, while the percentage of reduction varied depending on the sediment sample and treatment used. BS treatment successfully stimulated growth of indigenous bacteria. Further, PAH-degrading strain Sphingomonas paucimobilis F8 inoculated in BA and BB treatment survived for up to 7 weeks after it was suppressed by unfavorable conditions or native microbes. Degraded amounts generally showed good correlation with results obtained from XAD-4 extraction. Results obtained in the current study represent a good start for standardizing a XAD-4 extraction technique as a simplified, easier, and lower cost method for bioavailability assessment. |
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| Keywords: | Contaminated sediment Bioavailability PAH Biodegradation |
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