Jornal de Ciências Agrícolas e Pesquisa de Alimentos
Acesso livre

Abstrato

A Chemical-Physical Procedure to Reduce Levels of Potentially Toxic Elements (PTEs) in Municipal Sewage Sludges

Baffi C, Cella F, Fumi I and Trevisan M

The current waste policy in EU aims at reducing the amounts of sludges to be disposed in landfill, encouraging their energy reuse (e.g. energy source, fertilizers, etc.). In this perspective a reduction of potentially toxic elements (PTEs) and water is welcome, in view of a more sustainable reutilization of sludges, e.g. in agriculture. Aim of this work was to set up a chemical-physical procedure, named modified Fenton process (patent n° PC2012A000008 of 22/03/2012), which was able to improve the reduction of some PTEs (Zn, Ni, Cu, Pb, Cd and Cr) and water in municipal sewage sludges from anaerobic digestion, better than a conventional Fenton process, avoiding significant decreases of total organic carbon (TOC).