SORPTION OF METHYL SUBSTITUTED TOXIC PHENOLS ON COAL FLY ASH

I n t roduct ion Of all the methods, adsorption appears to offer the best prospects for overall treatment [1]. Activated carbon is most widely used sorbent but its use is limited due to its high cost. Flyash is new non-conventional sorbents having good adsorption quality. Most of the chemical contaminants are of organic origin. Phenols are among the most common water pollutants. The results of experiments designed to show the influence of chemical and physical parameters on the equilibrium sorption of phenols from aqueous olution are presented. silica increases and so sorption capacity decreases (Table-1) as follows-FA(45 lxrn)> FA (100~tm)> FA (150[.tm) Among phenols, variation is as follow