ABSTRACT

Fundamental equilibrium and kinetic adsorption data have been generated for the removal of trihalomethanes (THMs) from water using the hydrophobia pentasilzeolite known as silicalite. The preliminary data indicates adsorptive capacities which are comparable with those of granular activated carbon (GAC). The chief advantage of hydrophobic zeolites is their high thermal stability in air, up to temperatures of around 1100°C, which should make the process of on-site regeneration relatively straightforward. Hydrophobic pentasil-zeolites are also highly selective towards low molecular weight hydrocarbons such as the THMs, as they have a uniform crystalline structure and a pore size which excludes larger molecules.