ADSORPTION BEHAVIOR OF 2, 4-DICLOROPHENOL AND 2, 4, 5-TRICHLOROPHENOL ON SOIL OF GAZA STRIP

Abstract

The adsorption behavior of 2, 4-diclorophenol (2, 4-D) and 2, 4, 5-trichlo-rophend (2,4,5-TCP) was studied using the batch method. Soil samples from three locations in Gaza Strip from two depths were selected. Primary investigations of soil texture indicated that the samples were sandy. The content of organic matter was found to be less than 0.57%. Freundlich equation in form of adsorption isotherms and Freundlich - constants "k" and "n" was used to study the adsorption process. The results showed that the Freundlich constant "k" increases in the same order as the organic matter content of the soils, and decreases with increasing the soil depth. The effect of chlorination of both compounds upon their adsorption behavior indicates that the slightly less soluble 2,4,5-trichlorophenol seems to be more quickly adsorbed than 2,4-dichlorophenol.