“…Among the waste used as raw material are sludge from galvanization plants [49], ashes [50][51][52], sediments [53], batteries [54][55][56][57][58], electrical and electronic waste [59][60][61][62][63][64][65], catalysts [66,67,68], mixed metallic waste ("fine shredder residues") [69], red mud [70,71], waste from copper smelting [60,72] and soil [73,74].…”