The properties of ceramic products such as firing shrinkage, bulk density, leaching of Heavy metals and
the compressive strengths were evaluated. Incinerated ash samples were also used for ceramic tiles and block preparations. The
concentrations of heavy metal in leachate from the stabilized sludge samples were very low. The compressive strength, bulk
density, water absorption of the stabilized sludge and ash samples were examined and the results showed that up to 10% of the
raw sludge and 10-20% ash samples could be used for stabilization and/or solidification and additionally, 80% volume reduction
of the raw sludge could be obtained.