INTEGRAL AND SUSTAINABLE SYSTEM FOR MULTI-WASTE RECYCLING AND VALORISATION - REVAWASTE PROJECT

Abstract

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 proceeding from waste treatment plants and agr an integrated plant. This objective is reached by means of the technological development and practical application of the “Mixed Plant” concept. This development waste management strategy, based on the separation, pretreatment, recycling and valorisation steps. in a joint form all the above-mentioned catego 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 fertilizer (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. Keywords: anaerobic digestion, pyrolysis, energy optimization, integrated system, mixed plant, waste valorisation