English

Abstract

Locally available wastes were found to provide a good alternative source of highly active silica for the synthesis of zeolites. In the present investigation a collection of barely husk (from Erbil/north of Iraq), colourless glass (fruity glass) and white ceramic glass wastes were used usefully as a renewable sources of silica and alumina for synthesis of four types of zeolites; a suitable procedure was employed to extract silica and alumina from the selected wastes. The detections showed that the barley husk had the largest amount of silica. While the white ceramic glass wastes (laboratory waste) had the largest amount of alumina. Each zeolite sample was prepared starting from a mixture constituted by a source of silica and/or a source of alumina under hydrothermal condition at atmospheric pressure. The studied wastes were converted to zeolite Y, zeolite SOD, zeolite A and zeolite AFX. Raw materials and synthesized zeolites were characterized by x-ray fluorescence spectroscopy (XRF), X-ray diffraction spectroscopy (XRD) and Infrared spectroscopy (IR).