IMMOBILIZATION OF HIGH-LEADED CATHODE RAY TUBE GLASS IN FIRED CLAY BRICKS BY RECYCLING

End-of-life cathode ray tubes (CRTs) have become global problem in the pool of waste electrical and electronics owing to higher concentration lead (Pb) this needs urgent management an ecofriendly manner. In study, spent CRT glass was incorporated clay make burnt bricks for construction. Samples were collected from technicians’ workshops, manually dismantled, pulverized, milled sieved into three particles sizes (PS), namely; 0.6mm ≤1.0mm, ≤2.0mm. The metallic composition determined with Inductive Coupled Plasma- Optical Emission Spectrometric technique (ICP-OES). Each PS mixed at percentages ranging 0% as control 15% moulded using dry compression technique, dried fired furnace 800 0C. Mechanical properties products assessed including water absorption, linear shrinkage compressive strength. 4wt% CRT-clay ≤0.6mm exhibited highest strength low medium absorption selected optimum composition. Lead leachability CRT-glass/clay particle TCLP SPLP within permissible limit 5.0mg/L set by US-EPA. total recoverable test 96mg/L or 96,000 mg/kg that exceeded limit. From findings, it can be shown less than size is good quality, durable environmentally safe used building construction works.