Fabrication of glass-based products as remediation alternative for contaminated urban soils of Barcelona

• Vitrification is an effective method for soils remediation. Soils can be suitable making glass. Usually some additions are necessary. Potentially toxic elements from retained in the glass structure. The use of contaminated as raw material has economic benefits. Contaminated area previously occupied by a metal smelting industry Barcelona city were used was investigated possible remediation technique. main pollutants these Cu, Pb and Zn. Glass formulated using 80 wt% soil 20 Na 2 CO 3 . mixture molten at 1450 °C. Crystallisation temperatures, obtained Differential Thermal Analysis, 790 °C, 842 °C 879 Nepheline, diopside rhönite crystallized treated exothermal peaks. endothermic peak 1259 corresponds to melting temperature. transition temperature, determined dilatometry 632 Viscosity-temperature curve calculate relevant temperatures process. conformation range between 995 1298 workability interval ranges 1293 1302 contents leached well below limits established European legislation. Thus, vitrification technique soils.