Preparation and characterization of glass-ceramic synthesized from soda lime glass and wastewater sludge

• Main Authors: Abdul Wahab, Zaidan, Zaibon, Syaharudin, Matori, Khamirul Amin, Edros, Norfarezah Hanim, Thai, Ming Yeow, Mayzan, Mohd Zul Hilmi, Mohd Ghazali, Mohd Sabri, Md Daud, Mohd Norizam
• Format: Article
• Language: English
• Published: Universiti Putra Malaysia Press 2010
• Online Access: http://psasir.upm.edu.my/id/eprint/16310/1/16310.pdf; http://psasir.upm.edu.my/id/eprint/16310/
• Institution: Universiti Putra Malaysia

This paper reports an alternative method for making glass-ceramic from disposal waste water sludge and soda lime silica (SLS) glass. The glass ceramic samples were prepared from a mixture of wastewater sludge and SLS glasses, melted at 1375°C for 3 hours and quenched by pouring into water to obtain a coarse frit. The frit glass was then crushed and sieved to 106μm before it was pressed to a pellet. The sintering process was performed at various temperatures between 700- 1000°C for 2 hours and morphologically characterized with XRD, SEM, and EDX. Overall results showed the crystalline phase of diopside sodian-critobalite glass-ceramic is depending on thermal treatment process and making them attractive to industrial uses such as in construction, tiling, and glass-ceramic applications.