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Efecto del tipo de suelo en los procesos de adsorción-desorción del fungicida Tiabendazol

 

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Título alternativo: Effect of soil type on adsorption-desorption processes of the fungicide Thiabendazole
Author: Florido Fernández, María del Carmen
Entradas, I.
Undabeytia López, Tomás
Morillo, E.
Coordinator/Director: Comissão Editorial do VII CICS 2016 / VI CNRD. 2016. Livro de Actas do VII Congresso Ibérico das Ciências do Solo (CICS 2016) / VI Congresso Nacional de Rega e Drenagem
Department: Universidad de Sevilla. Departamento de Cristalografía, Mineralogía y Química Agrícola
Date: 2016
Published in: Solos e Água: fontes (esgotáveis) de vida e de desenvolvimento
ISBN/ISSN: 978-989-99665-0-5
Document type: Chapter of Book
Abstract: Se han realizado ensayos de adsorción-desorción del fungicida Tiabendazol (TBZ) en once suelos con propiedades fisicoquímicas diferentes con el objetivo de estudiar su comportamiento en el sistema suelo-agua. Las isotermas de adsorción de TBZ se a...
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In order to study the behavior of the fungicide Thiabendazole (TBZ) in the soil-water system, adsorptiondesorption tests were performed in eleven soils with different physicochemical properties. TBZ adsorption isotherms were well fitted to the Freundlich equation, and Kf values varied in the range 1.41-107. Kf was directly related to organic matter content in a great part of the soils, with an average Kfoc value of 1650, playing an important role in TBZ adsorption. However, taking into account all the studied soils, Kfoc varied in a wide range (210- 5474), indicating that in some soils other properties may influence on adsorption, such as their pH and the presence of amorphous oxides. Positive hysteresis was observed in TBZ desorption in most of the soils, indicating a partially irreversible adsorption. It was showed more irreversible as lower the adsorbed ammount.
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Format: PDF

URI: http://hdl.handle.net/11441/47871

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