Comparison of rapid solvent extraction systems for the GC–MS/MS characterization of polycyclic aromatic hydrocarbons in aged, contaminated soil

Haleyur, Nagalakshmi; Shahsavari, Esmaeil; Mansur, Abdulatif A.; Koshlaf, Eman; Morrison, Paul D.; Osborn, A. Mark; Ball, Andrew S.

doi:10.1016/j.mex.2016.04.007

Cited by 52 publications

(30 citation statements)

References 23 publications

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“…GC-MS is a powerful analytical tool for identification of organic pollutants in the environmental samples (Haleyur et al., 2016). The mass spectra of the major peaks in the gas chromatograms of refinery wastewater at particular retention time were compared with the NIST library (National Institute of Standards and Technology) showed the presence of a number of aliphatic and aromatic organic compounds viz.…”

Section: Resultsmentioning

confidence: 99%

Screening of polycyclic aromatic hydrocarbon degrading bacterial isolates from oil refinery wastewater and detection of conjugative plasmids in polycyclic aromatic hydrocarbon tolerant and multi-metal resistant bacteria

Khatoon

Malik

2019

Heliyon

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Wastewater were collected from the effluent channel in the vicinity of Mathura oil refinery, U.P. (India) and analysed for physicochemical characteristics, heavy metals as well as organic compounds including PAHs. The interaction of PAHs and heavy metals with various group of microorganisms revealed the viable count of aerobic heterotrophs, asymbiotic nitrogen fixers, actinomycetes and fungi were found to be 2.38 Â 10 6 , 1.89 Â 10 4 , 2.20 Â 10 4 CFU/mL and 8.76 Â 10 3 CFU/mL respectively. We have selected and screened 50 bacterial isolates for their resistance/tolerance to heavy metal and PAHs. Out of 25 multi-metal resistant isolates, 6 were able to tolerate PAHs at the concentration of 5000 μg/mL (50μg/disc) to naphthalene, anthracene, phenanthrene and pyrene. The PAH degradation efficiency of the isolates was assessed using spectrophotometer with 100 μg/mL of phenanthrene and observed different degree of degradation ranging from 34-66% after 96 h of incubation. One of the bacterial isolates KWB3 (identified as Enterobacter ludwigii by 16S rDNA sequencing) exhibited maximum degradation efficiency (66%) was further tested for phenanthrene degrading ability in the presence and absence of a co-substrate (glucose) in a mineral salt medium; and a number of metabolites were produced and detected by GC-MS which revealed the presence of benzocoumarin, phthalic acid, catechol and several low molecular weight compounds. The DNA derived from multi-metal and PAHs tolerant bacteria were PCR amplified using Inc specific primers and positive PCR products were obtained with oriT and trfA2 of the IncP group; indicates that these bacteria have gene-mobilizing capacity.

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Section: Resultsmentioning

confidence: 99%

Screening of polycyclic aromatic hydrocarbon degrading bacterial isolates from oil refinery wastewater and detection of conjugative plasmids in polycyclic aromatic hydrocarbon tolerant and multi-metal resistant bacteria

Khatoon

Malik

2019

Heliyon

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“…Further extract purification process was conducted using column chromatography with silica gel as the stationary phase and n -hexane as the mobile phase [30] . Solvent from the pure extracts was dried by evaporation and then re-dissolved in 1 ml methanol prior to GC–MS which was proven as reliable identification technique for PAHs metabolites [16] .…”

Section: Methods Detailsmentioning

confidence: 99%

Rapid biodegradation of polycyclic aromatic hydrocarbons (PAHs) using effective Cronobacter sakazakii MM045 (KT933253)

et al. 2017

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“…After removing the supernatant, residual diesel in the washed soil was extracted using a 3 mL mixture of hexane and acetone (1:1 volumetric ratio) (Haleyur et al, 2016). The slurry was vortexed for 1 min, and then the extracted solvent was collected.…”

Section: Analyzing Residual Diesel Concentration In Contaminated Soilmentioning

confidence: 99%

Influence of Quartz, Kaolin, and Organic Matter on the Critical Micelle Concentration of Tween Surfactants and their Application in Diesel‐Contaminated Soil Washing

Jantanaprasartporn

Tongcumpou

Tuntiwiwattanapun

2020

J Surfact & Detergents

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Surfactant solutions are commonly used for the remediation of petroleum-contaminated soil due to their good petroleum removal performance, time-saving capability, and cost effectiveness. However, applying surfactants in excess concentrations could make oil recovery difficult. Moreover, residual surfactants in soil are toxic to microorganisms and plants. Thus, it is crucial to identify a suitable surfactant concentration for soil washing applications. The main objective of this study was to evaluate the effect of soil minerals (quartz and kaolin) and organic matter (OM) on the critical micelle concentration (CMC) of polyethoxylated sorbitan ester surfactants (Tween 20, 40, 60, and 80) and its effect on diesel removal from dieselcontaminated soil by soil washing. The results showed that Tween surfactants with shorter carbon chain lengths required higher CMC for diesel removal from quartz, while those with longer chains needed higher CMC for kaolin cleanup. FTIR results illustrated that oxygenated functional groups of Tween surfactants played an important role in their adsorption on quartz, while alkyl chains of Tween surfactants were responsible for their adsorption on kaolin. At a certain OM concentration, quartz and OM exhibited antagonistic effects, resulting in CMC reduction. In soil washing application, maximum diesel removal could be achieved from kaolin, in the presence of which surfactants exhibited the highest CMC. Based on FTIR results, the adsorbed surfactant could reduce the hydrophobicity of the kaolin surface, thus preventing the re-deposition of detached diesel.

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Comparison of rapid solvent extraction systems for the GC–MS/MS characterization of polycyclic aromatic hydrocarbons in aged, contaminated soil

Abstract: Graphical abstract

Cited by 52 publications

References 23 publications

Screening of polycyclic aromatic hydrocarbon degrading bacterial isolates from oil refinery wastewater and detection of conjugative plasmids in polycyclic aromatic hydrocarbon tolerant and multi-metal resistant bacteria

Screening of polycyclic aromatic hydrocarbon degrading bacterial isolates from oil refinery wastewater and detection of conjugative plasmids in polycyclic aromatic hydrocarbon tolerant and multi-metal resistant bacteria

Rapid biodegradation of polycyclic aromatic hydrocarbons (PAHs) using effective Cronobacter sakazakii MM045 (KT933253)

Influence of Quartz, Kaolin, and Organic Matter on the Critical Micelle Concentration of Tween Surfactants and their Application in Diesel‐Contaminated Soil Washing

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