A.S.A. Azienda Servizi Ambientali is an Italian public company whose core business focuses on urban water complete systems both in Livorno and in neighbouring municipalities. A.S.A. primary area also includes sludge sewage digesters and final disposal of residue slurries.

A.S.A. required W.T.E.' support to carry out a  preliminary study to evaluate the co-combustion of sludge sewage and RSU-RDF in the incineration plant which operates in the same industrial area.

W.T.E. had to verify potential plant capacity reduction and major inconvenience in furnaces, boilers, gas cleaning systems and thermal cycle due to additional water, ashes and other chemical contents in the mixed fuel to be sent to the combustion. The analysis intented also to focus the attention on complying with regional and national rules in the matter of pollutant emissions.