Academic Journal
Bioelectrokinetic approach for remediating loam soil contaminated with vegetable oil, mineral oil, and diesel.
| Title: | Bioelectrokinetic approach for remediating loam soil contaminated with vegetable oil, mineral oil, and diesel. |
|---|---|
| Authors: | Molina DC; Facultad Regional Delta, Grupo de Biotecnología y Nanotecnología Aplicada, Universidad Tecnológica Nacional, Campana, Buenos Aires, Argentina. dconde@frd.utn.edu.ar., Rizzardi M; Facultad Regional Delta, Departamento de Ingeniería Eléctrica, Universidad Tecnológica Nacional, Campana, Buenos Aires, Argentina., Di Gregorio V; Facultad Regional Delta, Grupo de Biotecnología y Nanotecnología Aplicada, Universidad Tecnológica Nacional, Campana, Buenos Aires, Argentina. |
| Source: | Environmental science and pollution research international [Environ Sci Pollut Res Int] 2025 Aug; Vol. 32 (38), pp. 22313-22330. Date of Electronic Publication: 2025 Sep 20. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Springer Country of Publication: Germany NLM ID: 9441769 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1614-7499 (Electronic) Linking ISSN: 09441344 NLM ISO Abbreviation: Environ Sci Pollut Res Int Subsets: MEDLINE |
| Imprint Name(s): | Publication: <2013->: Berlin : Springer Original Publication: Landsberg, Germany : Ecomed |
| MeSH Terms: | Environmental Restoration and Remediation*/methods , Soil Pollutants* , Mineral Oil* , Gasoline* , Plant Oils*, Soil/chemistry ; Biodegradation, Environmental ; Soil Microbiology ; Kinetics |
| Abstract: | Bioelectrokinetic remediation integrates electrokinetic and bioremediation processes to enhance the removal of pollutants from the soil. This study evaluates the efficiency of bioelectrokinetic remediation in treating loam soils contaminated with vegetable oil, mineral oil, and diesel at a concentration of 20,000 mg/kg under low-voltage conditions (0.11 V/cm), aiming to maintain microbial activity while minimizing drastic pH fluctuations near the electrodes. A 14-day microcosm experiment was conducted, monitoring physicochemical parameters (pH, moisture content, contaminant distribution) and biological responses (heterotrophic aerobic bacteria, contaminant-degrading bacteria, fungi, and microbial enzymatic activity). The results demonstrated significant contaminant migration towards the anode for all three pollutants. Vegetable oil contamination showed degradation rates (average zones of 22.06%, central zone of 62.29% related to control), attributed to electromigration and increased microbial population and activity. A similar effect was noticed for diesel biodegradation (average zones of 15.23%, central zone of 64.50% related to control). In contrast, mineral oil exhibited no degradation and enhanced microbial activity, with a 29.89% reduction in the central zone related to the control, attributed exclusively to migration of pollutant to the anode. These findings lay the groundwork for developing optimized remediation strategies that maximize contaminant removal while preserving microbial activity, contributing to the advancement of sustainable soil restoration strategies. (© 2025. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.) |
| Competing Interests: | Declarations. Competing interests: The authors declare no competing interests. |
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| Contributed Indexing: | Keywords: Bioelectrokinetic remediation; Contaminated soil; Diesel; Microbial activity; Mineral oil; Vegetable oil |
| Substance Nomenclature: | 0 (Soil Pollutants) 8020-83-5 (Mineral Oil) 0 (Soil) 0 (Gasoline) 0 (Plant Oils) |
| Entry Date(s): | Date Created: 20250920 Date Completed: 20251011 Latest Revision: 20251011 |
| Update Code: | 20260130 |
| DOI: | 10.1007/s11356-025-36989-x |
| PMID: | 40974497 |
| Database: | MEDLINE |
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