Adsorption of Diuron and Linuron in Gaza Soils
- 1 Department of Earth and Environmental Sciences, The Islamic University of Gaza, Gaza, Palestine
- 2 Department of Earth and Environmental Sciences, The Islamic University of Gaza, Gaza, Palestine
- 3 Department of Earth and Environmental Sciences, The Islamic University of Gaza, Gaza, Palestine
Abstract
This study investigated the a dsorption potential of diuron and linuron in selected soil samples collected from agricul tural area of Gaza Strip, Palestine and correlated the adsorption results to the soil properties. The adsorption experi ments are based on the batch equilibrium technique and UV-Spectrophotometer method to determine the equilibrium concentration of both herbicides. Results of adsorption experiment showed that linuron and diuron are adsorbed in various amounts in Gaza soils according to the variation in pH, organic matter and clay content. Adsorption isotherms of both herbicides were linear in the tested concentration. Fitting the adsorption data to Freundlich equation showed good fitting and Freundlich constants were less than one indicating physical adsorption processes. It is concluded that soil organic matter and pH affect the adsorption of both herbicides. These results provided a better understanding of the behavior of d iuron and linuron in Gaza soils.
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