Adsorption of parathion in a multicomponent solution

Abstract Parathion adsorption was studied with emphasis on the effect of the presence of a secondary adsorbate. With rhodamine B, the quantity of parathion adsorption on different clay minerals increased two-to four-fold, while methylene blue and phenol had little or no effect. Rhodamine B was readily sorbed by clay minerals and the formed organoclay complex also enhanced the parathion adsorption more than two-fold. Lake sediments, on the other hand, increased their parathion adsorption capacity when the organic matter was partially extracted from the sediment particles.