A Novel Study on Using Vietnam Rice Hush Ash and Cullet as Environmental Materials

Abstract

This work introduces novel method to prepare ecomaterials wollastonite (CaSiO3) using the hydrothermal treatment technique of Rice hush ash (RHA), glass cullet and CaO at 180°C for 24 hour so as the Ca/Si molar ration of 1.0. The sample after hydrothermal treatment at 180°C for 24 hours is calcined at 1000°C to obtained wollastonite CaSiO3. The obtained wollastonite has many applications in biomaterials and thermal insulator. This research also aim to improve the quality of RHA, thus reduce negative impact to environment.