Remediation of a diesel contaminated soil by means of anionic and non-ionic surfactants: Effect on soil phosphorus availability and Vicia Faba L. growth

• DOI: 10.1016/j.scitotenv.2024.177999
• Publication Date: 2024-12-12T23:12:42Z
• Authors: Federica De Marines; Gaetano Di Bella; Vito Armando Laud...; Sara Paliaga; Daniele Di Trapani

In the present study, effectiveness of two surfactants (Polysorbate 80 - Tween and Sodium Dodecyl Benzensulphonate SDBS) was investigated for remediation a hydrocarbon-contaminated soil. Moreover, it elucidated impact on soil phosphorus (P) availability phytotoxic effect growth Vicia Faba L. An experimental laboratory-scale apparatus (bench pilot scale) set up simulation flushing intervention. Different surfactant concentrations flow rates were investigated. Hydrocarbon extraction efficiency evaluated after treatment phytotoxicity tests performed by means germination index (GI). The treated with scale then used (faba beans) cultivation in pots. plants monitored and, at end period, uprooted subjected to biometric chemical analyses. Results highlighted that use significantly increased hydrocarbons compared test water (19.6 %, 53.9 65.6 % water, 0.1 weight SDBS, respectively, scale). Referring L., grown blank control reached same average height thus suggesting this does not inhibit plant growth. contrast, lowest occurred soils SDBS; suggests negative Due reduced growth, total P uptake SDBS-treated soils, although such experienced 20 increase available P. This could be ascribed supplied or high as consequence pH decrease.