The waste revalorization allows reducing the system cost and offer reutilization.
Different size fraction of weathered bottom ash from the incineration were analysed.
Physicochemical and thermophysical characterization was performed for 6 sample size WBA.
The highest energy density was 1461.2 kJ m−3·K−1 for the 1–2 mm fraction.
Residue low-cost and high production rate makes WBA attractive for reutilization.