Due to its persistence in nature and harmful effects, on biota toxaphene a once, prevalently, used pesticide has been a. Major concern for health and environmental officials. The study of toxaphene and methods to remediate it effectively and. Efficiently continues to be a major issue for environmental engineers and scientists alike. This research explored the potential. For cosolvent flushing to remove toxaphene contaminants from soil using methanol-water solutions. The research revealed. That the addition of methanol to water increased the solubility of toxaphene as it decreased its sorption to the soil. The. First-order bicontinuum model was found to effectively simulate the non-equilibrium sorption process in the miscible displacement. Of toxaphene from a soil column. The application of cosolvent flushing reduced the time and solution volume required to. Elute the hydrophobic organic toxaphene from the soil. The experimental data agreed with the theoretical log-linear relationships. Between the sorption constant Kp and the cosolvent fraction FC and the, reverse first-order rate K2 and the cosolvent fraction. FC. A log-log linear relationship was found to exist between the K2 value and the Kp value. The linear correlation between. K2 and the cosolvent fraction FC was estimated successfully based on the literature data and equations.
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