Evidence map›Paper›PMID 41745827›Full record

ArticleToxics2026

Optimising Hydrocarbon Extraction from Soil Using Mixed-Surfactant Systems.

Emilio Ritoré, Carmen Arnaiz, José Morillo, Agata Egea-Corbacho, José Usero

Abstract read
In one paragraph

Article in Toxics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Emilio RitoréDepartment of Chemical and Environmental Engineering, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092 Seville, Spain.
Carmen ArnaizDepartment of Chemical and Environmental Engineering, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092 Seville, Spain.ORCID 0000-0002-9903-2445
José MorilloDepartment of Chemical and Environmental Engineering, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092 Seville, Spain.ORCID 0000-0003-2578-0368
Agata Egea-CorbachoDepartment of Chemical and Environmental Engineering, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092 Seville, Spain.
José UseroDepartment of Chemical and Environmental Engineering, Higher Technical School of Engineering, University of Seville, Camino de los Descubrimientos s/n, 41092 Seville, Spain.ORCID 0000-0002-2529-3722

Funding

INERCO Inspección y Control S. A. PI 1790/43/2018INERCO Inspección y Control S. A. PI 1790/43/2018)Universidad de Sevilla VII PPIT-US
6 · The paper itself

Abstract

In industrial settings, one of the key environmental challenges is the remediation of soil contaminated by hydrocarbons. Washing the soil with surfactants mobilises and extracts these compounds, making them easier to treat. As it enables the recovery and reuse of soil within sustainable production processes, this technique is part of the circular economy. Soil-washing experiments using surfactants were carried out to determine whether a mixture of anionic and non-ionic surfactants could improve the remediation of soil contaminated by gasoline and diesel fuel compared to the use of a single surfactant. Four surfactants were used (non-ionic: polyoxyethylene lauryl ether and polyoxyethylene (80) sorbitan monooleate; anionic: sodium dodecylbenzenesulfonate and sodium dodecyl sulfate). The aliphatic and aromatic hydrocarbon fractions (C6-C8, C8-C10, C10-C12, C12-C16, C16-C21 and C21-C35) of gasoline and diesel fuel were analysed. Sodium dodecylbenzenesulfonate was selected for the purpose of preparing mixtures with the other two non-ionic surfactants, polyoxyethylene lauryl ether and polyoxyethylene (80) sorbitan monooleate. These surfactant mixtures demonstrated significantly higher removal rates than sodium dodecylbenzenesulfonate alone. Mixtures of sodium dodecylbenzenesulfonate and polyoxyethylene lauryl ether achieved hydrocarbon extraction of between 61% and 68%, while sodium dodecylbenzenesulfonate-polyoxyethylene (80) sorbitan monooleate mixtures obtained extraction of between 58% and 66%. Analysis of the gasoline and diesel hydrocarbon fractions indicated that smaller molecules desorb more easily than larger ones and that aromatics desorb more easily than aliphatics. Furthermore, the mixtures increased the extraction of both aliphatic and aromatic hydrocarbons, particularly the lighter compounds. The variation on removal rates within the hydrocarbon ranges may be related to the octanol-water partition coefficient (K

Indexed as

hydrocarbonshydrocarbons fractionspetroleumsoil flushingsoil remediation

Identifiers

PMID41745827
PMCPMC12945158

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.