Abstract
Coal fly ash was converted into various zeolites by alkaline treatment, and wood waste was carbonized and activated by calcination. In this study, the porous material for adsorbent used these industrial wastes was investigated. Coal fly ash and wood waste were kneaded together with appropriate amounts of water and bentonite used as caking additives. After molding this kneaded mixture, it was calcined at 600 or 850°C under N2 atmosphere. Then, the calcined bodies were hydrothermally treated in 2.0 M NaOH aq at 120°C for 20 h. Na-P zeolite species were found in the obtained calcined bodies. This treated material exhibited adsorption properties for methylene blue in liquid phase.
