Polycyclic aromatic hydrocarbon removal from contaminated soils using fatty acid methyl esters

Gong, Zongqiang; Wang, Xiaoguang; Tu, Ying; Wu, Jin-Bao; Sun, Yifei; Li, Peng

doi:10.1016/j.chemosphere.2010.01.037

Cited by 49 publications

(17 citation statements)

References 37 publications

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“…Finally, we detected fatty acids, such as palmitic acid and 536 stearic acid, which are plant components with a known potential to enhance the bioaccessibility 537 of PAHs in soil by acting as surfactants (Yi and Crowley, 2007). Vegetable oils have also been 538 widely used as natural surfactants (Gong et al, 2010), resulting in the dissolution of PAHs and 539 consequently, in the enhancement of biodegradation. Therefore, the presence of these compounds 540 may explain the greater decrease in PAHs observed in the sunflower soil treatments.…”

Section: Effects Of Exudates On the Bioaccessibility Of Pahs And On Smentioning

confidence: 99%

Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil

Tejeda-Agredano

Gallego

Vilà

et al. 2013

Soil Biology and Biochemistry

129

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Section: Effects Of Exudates On the Bioaccessibility Of Pahs And On Smentioning

confidence: 99%

Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil

Tejeda-Agredano

Gallego

Vilà

et al. 2013

Soil Biology and Biochemistry

129

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“…Therefore, prior to oxidation, solubilizing agents such as surfactants [40,44,170,171], vegetable oils [172], co-solvents [53,151] or cyclodextrins [173] can be used in order to enhance PAH desorption and increase PAH availability.…”

Section: Please Insertmentioning

confidence: 99%

Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review

Ranc

Faure

Croze³

et al. 2016

Journal of Hazardous Materials

153

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“…PAHs in the contaminated soil were extracted using a mechanical chemical extraction procedure (Gong et al, 2010;Wu et al, 2010). Contaminated soil (1 g) was added to a glass bottle, and then 1.5 g of sodium chloride, 10 mL of deionized water, 20 mL of acetone, and 15 mL of dichloromethane were added.…”

Section: Soil Pah Extractionmentioning

confidence: 99%

Variations in the bioavailability of polycyclic aromatic hydrocarbons in industrial and agricultural soils after bioremediation

et al. 2016

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The aim of this study was to demonstrate the variations in bioavailability remaining in industrial and agricultural soils contaminated by polycyclic aromatic hydrocarbons (PAHs) after bioremediation. After inoculation of Mycobacterium sp. and Mucor sp., PAH biodegradation was tested on a manufactured gas plant (MGP) soil and an agricultural soil. PAH bioavailability was assessed before and after biodegradation using solid-phase extraction (Tenax-TA extraction) and solid-phase micro-extraction (SPME) to represent bioaccessibility and chemical activity of PAHs, respectively. Only 3- and 4-ring PAHs were noticeably biodegradable in the MGP soil. PAH biodegradation in the agricultural soil was different from that in the MGP soil. The rapidly desorbing fractions (F(rap)) extracted by Tenax-TA and the freely dissolved concentrations of 3- and 4-ring PAHs determined by SPME from the MGP soil decreased after 30 days biodegradation; those values of the 5- and 6-ring PAHs changed to a lesser degree. For the agricultural soil, the F(rap) values of the 3- and 4-ring PAHs also decreased after the biodegradation experiment. The Tenax-TA extraction and the SPME have the potential to assess variations in the bioavailability of PAHs and the degree of biodegradation in contaminated MGP soils. In addition, Tenax-TA extraction is more sensitive than SPME when used in the agricultural soil.

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Polycyclic aromatic hydrocarbon removal from contaminated soils using fatty acid methyl esters

Cited by 49 publications

References 37 publications

Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil

Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil

Selection of oxidant doses for in situ chemical oxidation of soils contaminated by polycyclic aromatic hydrocarbons (PAHs): A review

Variations in the bioavailability of polycyclic aromatic hydrocarbons in industrial and agricultural soils after bioremediation

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