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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.6
- 수록면
- 290 - 298 (15page)
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초록· 키워드
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A large residual fraction of aliphatic components of diesel prevails in soil, which has adverse effects on the environment. This study identified the most bio-recalcitrant aliphatic residual fraction of diesel through total petroleum-hydrocarbon fractional analysis. For this, the strain Acinetobacter sp. K-6 was isolated, identified, and characterized and investigated its ability to degrade diesel and n-alkanes (C<SUB>18</SUB>, C<SUB>20</SUB>, and C<SUB>22</SUB>). The removal efficiency was analysed after treatment with bacteria and nutrients in various soil microcosms. The fractional analysis of diesel degradation after treatment with the bacterial strains identified C<SUB>18</SUB>-C<SUB>22</SUB> hydrocarbons as the most bio-recalcitrant aliphatic fraction of diesel oil. Acinetobacter sp. K-6 degraded 59.2% of diesel oil and 56.4% of C<SUB>18</SUB>-C<SUB>22</SUB> hydrocarbons in the contaminated soil. The degradation efficiency was further improved using a combinatorial approach of biostimulation and bioaugmentation, which resulted in 76.7% and 73.7% higher degradation of diesel oil and C<SUB>18</SUB>-C<SUB>22</SUB> hydrocarbons, respectively. The findings of this study suggest that the removal of mid-length, non-volatile hydrocarbons is affected by the population of bio-degraders and the nutrients used in the process of remediation. A combinatorial approach, including biostimulation and bioaugmentation, could be used to effectively remove large quantities of aliphatic hydrocarbons persisting for a longer period in the soil.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (39)
참고문헌 신청
Tyagi M, da Fonseca MMR, de Carvalho CCCR. Bioaugmentation and biostimulation strategies to improve the effectiveness of bioremediation processes. Biodegradation 2011;22:231-241.
Mittal A, Singh P. Isolation of hydrocarbon degrading bacteria from soils contaminated with crude oil spills. Indian J. Exp. Biol. 2009;47:760-765.
Serrano A, Gallego M, Gonzalez JL, Tejada M. Natural attenuation of diesel aliphatic hydrocarbons in contaminated agricultural soil. Environ. Pollut. 2008;151:494-502.
Barathi S, Vasudevan N. Bioremediation of crude oil contaminated soil by bioaugmentation of Pseudomonas fluorescens NS1. J. Environ. Sci. Health A. Tox. Hazard. Subst. Environ. Eng. 2003;38:1857-1866.
Guarino C, Spada V, Sciarrillo R. Assessment of three approaches of bioremediation (natural attenuation, landfarming and bioaugmentation- assisted landfarming) for a petroleum hydrocarbons contaminated soil. Chemosphere 2017;170:10-16.
Mittal A, Singh P. Isolation of hydrocarbon degrading bacteria from soils contaminated with crude oil spills. Indian J. Exp. Biol. 2009;47:760-765.
Serrano A, Gallego M, Gonzalez JL, Tejada M. Natural attenuation of diesel aliphatic hydrocarbons in contaminated agricultural soil. Environ. Pollut. 2008;151:494-502.
Barathi S, Vasudevan N. Bioremediation of crude oil contaminated soil by bioaugmentation of Pseudomonas fluorescens NS1. J. Environ. Sci. Health A. Tox. Hazard. Subst. Environ. Eng. 2003;38:1857-1866.
Guarino C, Spada V, Sciarrillo R. Assessment of three approaches of bioremediation (natural attenuation, landfarming and bioaugmentation- assisted landfarming) for a petroleum hydrocarbons contaminated soil. Chemosphere 2017;170:10-16.
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