Physical characteristics (water absorption), mechanical (compression length), of toxicity and surface (scanning electron microscopy) were evaluated in acoustic ceramic blocks, manufactured by the process of solidification/stabilization (S/S) from the incorporation of sludge from a textile wastewater treatment plant. Acoustic ceramic blocks were produced by incorporating of 5, 10, 15, 20, 25, 30 and 35% of textile sludge in the clay mass/material as well as the control block. The results indicated the percentage of 20% of sludge, as the limit to provide materials with good characteristics of accordance with the standards established by Brazilian law. The S/S process was efficient in the recovery/treatment of the textile sludge, as it allowed the immobilization of pollutants in the clay mass/material, which have not been leached, neither solubilized.
acoustic ceramic block; solidification; textile laundry sludge
