The FMEA method was implemented for homogenization and compaction of ash to identify the bottle necks within the processes. The ash compaction was carried out by using a cement. It was pumped out of the silo, mixed with water or other chem. agents. The fly ash was chem. stabilized to avoid any addnL leakage of pollutants into the environment. The risk priority nos. were used to assess the severity, occurrence and detection of failures. Solidification of cement in tank showed the highest risk priority no. (243).