If it is considered that these calculations do not include
the metals recovered from the bottom ash, and the
bottom ash itself, which are tradable goods, the imports
could be reduced further, since these raw materials can be
used in the metallurgic and construction sectors, or can be
exported, increasing the exports of the country. Table 5
provides a rough estimation of ferrous and non-ferrous
materials that could be recovered by the facilities proposed
by Psomopoulos and Themelis [8] considering the
Spain’s report on WTE plants in the country published by
CEWEP [33].