Sistema integral y sostenible para el reciclado y valorización de residuos múltiples - proyecto REVAWASTE

Abstract

The general aim of the REVAWASTE Project

(LIFE12 ENV/ES/000727) is the sustainable

management of a broad spectrum of wastes

(industrial waste, non-recyclable fraction

proceeding from waste treatment plants

and agro-food waste) in an integrated plant.

This objective is reached by means of the

technological development and practical

application of the “Mixed Plant” concept.

This development will support a new waste

management strategy, based on the separation,

pre-treatment, recycling and valorisation

steps. In order to valorise in a joint form all

the above-mentioned categories of waste, two

different processes have been integrated. The

first one is an anaerobic digestion system for the

transformation of easily biodegradable organic

waste into biogas. The second one is a low

temperature pyrolysis (chemical) treatment for

the valorisation of the non-recyclable plastic

waste fraction. Biogas together with pyrolysis

gases (syngas) will be used as fuel in an adapted

co-generation engine. As an added value, and

in order to close the recycling cycle with a

minimum environmental impact, the digestate

generated in the anaerobic reactor will be

valorised as a slow-release fertiliser (struvite),

the solid fraction obtained in the pyrolysis

process (ashes) will be transformed into carbon

pellets (biofuel) and the liquid fraction obtained

during the pyrolysis gas distillation process will

be valorise as second generation biofuels.