Remediation of pesticides in commercial farm soils by solarization and ozonation techniques.

Autor: Martínez-Escudero CM; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain. Electronic address: cme61k@carm.es., Garrido I; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain., Ros C; Department of Crop Protection. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain., Flores P; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain., Hellín P; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain., Contreras F; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain., Fenoll J; Research Group on Sustainability and Quality of Fruit and Vegetable Production. Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental. C/ Mayor s/n. La Alberca, 30150, Murcia. Spain. Electronic address: jose.fenoll@carm.es.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2023 Mar 01; Vol. 329, pp. 117062. Date of Electronic Publication: 2022 Dec 20.
DOI: 10.1016/j.jenvman.2022.117062
Abstrakt: Soil contamination by pesticides is a growing environmental problem. Even though nowadays numerous soil remediation technologies are available, most of them have not been tested at field scale. This study attempts to demonstrate the efficiency of solarization-ozonation techniques for the removal of twelve pesticides at full scale. Initial solarization and ozonation trials were conducted in plots located in a greenhouse using freshly and aged contaminated soils under controlled pilot conditions. The combination of solarization and ozonation treatment was efficient for all the studied pesticides both in freshly and in aged contaminated soils, being the lower degradation values found for the second type. This low removal suggests that the increase of pesticides' adsorption on soil resulting from ageing decreases their availability. Once the essays were carried out at pilot scale, the solarization-ozonation applicability was evaluated in a commercial farm soil. This trial was carried out in a greenhouse whose soil had previously been contaminated with some of the pesticides studied. A significant degradation (53.8%) was observed after 40 days of treatment. Pesticides' main metabolites were identified during the different remediation experiments. In addition, the cost of the combined solarization and ozonation technology was evaluated. Finally, our results suggest that this combination of techniques could be considered a promising technology to degrade pesticides in soil.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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