10 07 29 Master thesis Juliana Leon - e-Waste. This guide

Figure 26: Schematic flows in a future system including the IS in the collection step.
3.5.1.1 Economical aspects
According to the MFA results, CRT-monitors combine the three problematic
components that most often end up dumped or landfilled: CRT-glass, low-grade
PWBs, and plastic casings. They are also almost disappearing from the market and,
thus, most probably less and less refurbished until finally being excluded from the
reverse supply chain. Due to the small amount of really valuable parts in these
monitors, the chance of recovering them in one piece is much higher than for CPUs,
for example. These are only some of the reasons, why the economic calculation has
been done solely for CRT-monitors.
The theoretical benefit that a reciclador can obtain by selling the materials contained
in an average CRT-monitor is analyzed in Table 15. Three literature sources were
compared in order to obtain the minimum and maximum amount of each material
contained in an average CRT-monitor (Laffely, 2007; Marthaler, 2008; Ministerio de
Comunicaciones et al., 2008). These values were then multiplied by the minimum
and maximum material price paid to the recicladores, as found out during the field
survey.
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