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This research is part of the projects PID2022-137828OB-I00 (EMULREM) and PDC2022-133095-I00 (VAL-REMSURFOX) funded by MCIN/AEI/10.13039/501100011033. Project TEC-2024/ECO-69 (CARESOIL-CM) funded by the Community of Madrid is also acknowledged. Y. Moreno-De la Fuente acknowledges the Spanish State Investigation Agency for the grant PREP2022-000074 funded by MICIU/AEI/10.13039/501100011033 and FSE + .

Analysis of institutional authors

Herraiz-Carbone, MiguelAuthor

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June 10, 2025
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Removal of antracene and benzo[a]pyrene from soil-washing synthetic emulsions by Fenton and solar photo-Fenton oxidation

Publicated to:Journal Of Water Process Engineering. 75 107959- - 2025-06-01 75(), DOI: 10.1016/j.jwpe.2025.107959

Authors: Ayedi, Karima; Fuente, Yaiza Moreno-De La; Herraiz-Carbone, Miguel; Cotillas, Salvador; Prisciandaro, Marina; Santos, Aurora; Dominguez, Carmen M

Affiliations

Rey Juan Carlos Univ, Dept Chem & Energy & Mech Technol, ESCET, C Tulipan S-N, Mostoles 28933, Madrid, Spain - Author
Univ Complutense Madrid, Fac Chem Sci, Dept Chem Engn & Mat, Ave Complutense S-N, Madrid 28040, Spain - Author
Univ LAquila, Dept Ind & Informat Engn & Econ, Piazzale Ernesto Pontieri, I-67100 Laquila, Monteluco Roio, Italy - Author

Abstract

This study examines the treatment of polycyclic aromatic hydrocarbons (PAHs) aqueous emulsions, equivalent to those obtained from soil-washing, using Fenton and solar photo-Fenton oxidation for pollutant removal and surfactant recovery in water treatment applications. PAHs, persistent contaminants in industrial wastewater, require sustainable treatment approaches. Soil was contaminated with anthracene (ANT) and benzo[a]pyrene (BaP) and washed with sodium dodecyl sulfate (SDS) at a mass liquid-to-soil ratio of 2:1, with SDS concentrations ranging from 2500 to 10,000 mg L-1. A synthetic emulsion (SDS: 4500 mg L-1, ANT: 5 mg L-1, BaP: 5 mg L-1) was prepared and treated using low oxidant (H2O2: 60-240 mg L-1) and catalyst (Fe: 2.5-10 mg L-1) dosages to optimize reagent consumption. The Fenton process (pH = 3) achieved complete PAHs removal, with BaP fully degraded under all conditions and ANT requiring higher oxidant (H2O2, 240 mg L-1) and catalyst (Fe, 10 mg L-1) concentrations. The solar photo-Fenton process achieved up to 70 % ANT and 85 % BaP removal at near-neutral pH using ferrioxalate complexes (120 mg L-1 H2O2, 10 mg L-1 Fe). Minimal SDS degradation and negligible mineralization support surfactant recovery and reuse, enhancing process sustainability. These findings highlight the viability of light-assisted advanced oxidation processes for selective pollutant degradation in engineered water systems, supporting the development of cost-effective and environmentally friendly remediation technologies.

Keywords

AopsBiodegradatioContaminated soilsDegradationEmulsions treatmentFenton processPahsPolycyclic aromatic-hydrocarbonsProcesses aopsReagentRemediationSoil washingSolar photo-fentonSurfactantSurfactant recoverSurfactant recoveryWater

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Water Process Engineering due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 21/83, thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering, Environmental.

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-08-03:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 2.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 5.7.
  • The number of mentions on the social network X (formerly Twitter): 6 (Altmetric).

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Italy.