The Project “Green - Industrial Symbiosis” (G-IS), in Emilia Romagna region (IT), took place in two phases: phase I, 05.2013 –
03.2014; phase II, 10. 2014 – 10.2015. During the first phase, it was completed the first part of the pilot project of industrial
symbiosis (IS) in Emilia-Romagna, which involved 13 companies in the agro-industrial sector, 7 laboratories of the High
Technology Network, with Unioncamere and Aster (promoters) and ENEA (technical and scientific coordinator). The first phase
generated 90 potential synergies among the 10 companies that shared their input-output resources. During the second phase,
promoted by ASTER and organized with the technical and scientific coordination of ENEA, some of the most interesting
synergies of the first phase were selected, in order to go from the identification of potential synergies to its actual
implementation. In particular, 3 pathways of industrial symbiosis were chosen, in which waste food industry outputs were
destined to three different types of exploitation (production of biopolymers, nutraceuticals, energy recovery). The pathway that a
resource must take to shift from being a company's output to another company’s input, involves several steps that require
compliance and verification of regulatory, technical, logistical and economic issues. All these factors have been examined and
reported in 3 Operative Manuals for the companies involved, each one arranged for a different symbiosis’ pathway. The manuals
consist of two sections: an operative and a documental part (technical dossier). The operative part describes the transformation
path of resources, with a layout in which each block and intermediate vector represent a passage of the resource (e.g. exit from
the producing company, transport, valorisation). Under the layout, a synthesis table refers, for each stage, to the necessary
requirements, reported in full in the technical dossier. Links on the synthesis table refer, for example, to laws or techniques that
the specific flow, in each step, must comply with. These links also define, with a predefined color, if that aspect can be
considered as an obstacle to the progress of the symbiosis.