Page 665 - Materials Chemistry, Second Edition
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CAT3525_C22.qxd  1/27/2005  1:00 PM  Page 636
                       636                       Waste Management Practices: Municipal, Hazardous, and Industrial




























                       FIGURE 22.4 PC monitors approved for resale.





























                       FIGURE 22.5 Old CRTs awaiting shipment to a recycler.

                       22.6.4.1 CRT Glass

                       Glass-to-glass recycling refers to the closed-loop process of reclaiming leaded CRT glass from dis-
                       carded CRTs and using it to make new CRT glass. Glass-to-glass recycling involves collecting tel-
                       evisions and monitors, removing and crushing the CRTs (Figure 22.8), separating the glass from the
                       nonglass materials, processing to meet specifications, and using the glass as an ingredient to man-
                       ufacture new CRT glass. The steps in glass-to-glass recycling are as follows (MFF, 2001):

                           ● Remove CRT from the monitor or television
                           ● Remove all nonglass material from the exterior of the CRT
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