MALEIC HYDRAZIDE ADSORPTION BY SOILS AND THE USE OF THE MOLE FRACTION FORM OF THE FREUNDLICH EQUATION

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Abstract
Using a model of the Freundlich equation proposed by Bowman, we evaluated maleic hydrazide (MH) adsorption on 22 soils and calculated an adsorption capacity parameter (Sy) for each system. With these Sy values, we then analyzed the linear correlation between MH adsorption and each of several selected soil properties. The results of these correlations showed that the relationships between MH adsorption and soil properties were similar to those previously found using K values from the usual form of the Freundlich equation. In this paper we also comment on the parameters used to evaluate and report the adsorption of pesticides and other organochemicals by soils and sediments.