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Research Article

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

Baffi C1*, Cella F2, Fumi I2 and Trevisan M1

1Centro di Ricerca BIOMASS, Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, Piacenza, Italy

2Syngen, Agrosistemi, Piacenza, Italy

*Corresponding Author:
Baffi C
Centro di Ricerca BIOMASS
Facoltà di Scienze Agrarie, Alimentari e Ambientali
Università Cattolica del Sacro Cuore
Piacenza, Italy
Tel: +39 0523 599448
E-mail: [email protected]

Received date: February 12, 2015; Accepted date: March 20, 2015; Published date: March 27, 2015

Citation: Baffi C, Cella F, Fumi I, Trevisan M (2015) A Chemical-Physical Procedure to Reduce Levels of Potentially Toxic Elements (PTEs) in Municipal Sewage Sludges. J Biofertil Biopestici 6:153. doi:10.4172/2155-6202.1000153

Copyright: © 2015 Baffi C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricteduse, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

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).

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