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Título

Soil adsorption of 2,4-D as affected by the clay mineralogy

Autor Hermosín, M.C. ; Cornejo, J.
Palabras clave Adsorption
Freundlich isotherm
Pesticide
Soil pollution
Soil clay mineralogy
Fecha de publicación 1991
EditorGordon and Breach Science Publishers
Taylor & Francis
Citación Toxicological & Environmental Chemistry 31 (1): 69-77 (1991)
ResumenThe adsorption of 2,4‐D has been studied obtaining adsorption isotherms on 22 soils by the batch equilibration technique. Fitting the adsorption data to the Freundlich equation three adsorption capacity were calculated at low (Kf or Cs 1), medium (Cs4.5) and high (Cs 30) 2,4‐D concentration. The adsorption capacity and intensity factors obtained in this study resulted in according with those reported by other authors. From the simple regression analysis between adsorption capacities and soil properties it was shown that organic matter and free iron contents of soils favoured the adsorption, whereas pH, surface area and clay content decreased the adsorption of 2,4‐D. By dividing the soils according to their clay mineralogy it was shown that the soils properties determining the adsorption capacity were different for soils with phyllosilicates as essential clay components than for soils with iron oxides as major clay components.
Descripción 9 páginas, 1 figura, 4 tablas, 22 referencias
Versión del editorhttp://dx.doi.org/10.1080/02772249109357674
URI http://hdl.handle.net/10261/91940
DOI10.1080/02772249109357674
ISSN0277-2248
E-ISSN1029-0486
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