title: Utilization of cathode ray tube waste: encapsulation of PbO-containing funnel glass in Portland cement clinker.
abstract: The disposal of cathode ray tube (CRT) generates large quantities of leaded glass waste. The encapsulation of glass from the funnel portion of CRT in cement clinker was investigated. Samples of cement raw material containing 0 (control), 0.1, 0.2, 0.3, 0.4, or 0.5 wt% of CRT funnel glass ground to less than 75 μm were heated to 1480 °C in an electric furnace for 1.5 h at a heating rate of 5 °C/min to produce cement clinker. The Pb encapsulation and chemical composition of the clinkers were analysed using X-ray techniques and atomic absorption spectroscopy (AAS). The maximum PbO encapsulation occurred in mixtures containing 0.1 wt% funnel glass.
authors: The Project Office of Consortium on Doctoral Philosophy Programs of Rajabhat University, Phranakhon Rajabhat University, 9 Changwattana Road, Bangkhen, Bangkok 10220, Thailand.
authors: Nirut
authors: N
authors: Lairaksa
authors: Anthony R
authors: AR
authors: Moon
authors: Natt
authors: N
authors: Makul
mesh_terms: D055984:Cathode Ray Tube; D003252:Construction Materials; D007854:Lead / Q000032:analysis* / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods*; D013054:Spectrophotometry, Atomic
chemical_list: D007854:Lead