Abstract
Removal of methyl tert-butyl ether (MTBE), a widely used gasoline additive, by adsorption was investigated. Commercially available macroreticular resin was employed in the adsorption process. Batch experiments were conducted to determine the equilibrium MTBE adsorption capacity which, in turn, was utilized to identify the adsorption isotherms. Column tests were made to examine the performances of continuous adsorption operations under conditions of different inlet MTBE concentrations, feed flow rates, and temperatures. A theoretical model based on the general logistic function was adopted and tested for describing the MTBE breakthrough behaviors of the adsorption resin column. The identified breakthrough model significantly facilitates practical design of the MTBE adsorption system. Regeneration of exhausted adsorption resin was also preliminarily investigated to determine its effectiveness for repeated use. The resin adsorption process was found to be efficient in the removal MTBE from contaminated water relative to GAC.
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