Dissipation of a mix of priority PAHs in soils by using availability enhancers. Effect of aging and pollutant interactions

Dissipation of a mix of priority PAHs in soils by using availability enhancers. Effect of aging and pollutant interactions

A remediation strategy using three non-toxic availability enhancers (two cyclodextrins and a rhamnolipid biosurfactant) was applied to various soils artificially contaminated with a mix of Polycyclic Aromatic Hydrocarbons (PAHs) considered priority pollutants at two levels of contamination: only wit...

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Veröffentlicht in:The Science of the total environment 2022-09, Vol.837, p.155744-155744, Article 155744
Hauptverfasser: Madrid, F., Florido, M.C., Rubio-Bellido, M., Villaverde, J., Morillo, E.
Format: Artikel
Sprache:eng
Schlagworte:
adsorption
Biodegradation
biosurfactants
Co-contamination
Cyclodextrins
desorption
environment
fluorenes
molecular weight
pollutants
principal component analysis
remediation
Rhamnolipid biosurfactant
rhamnolipids
Soil remediation
soil types
toxicity
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Zusammenfassung:A remediation strategy using three non-toxic availability enhancers (two cyclodextrins and a rhamnolipid biosurfactant) was applied to various soils artificially contaminated with a mix of Polycyclic Aromatic Hydrocarbons (PAHs) considered priority pollutants at two levels of contamination: only with 7 low molecular weight PAHs (LMW PAHs, 5 with 3-ring and 2 with 4-ring - fluoranthene and pyrene) or with 14 PAHs (from 3 to 6 rings). Natural attenuation of PAHs in all soils showed degradation capacity for the LMW PAHs, with a final content of LMW PAHs
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2022.155744