Last Friday 9 June, 2017 the third Project meeting of GRADISAL took place in the facilities of MARE, in Cartes. In the meeting the participants reviewed and debated the activities that had been carried out by the partner companies, APRIA SYSTEMS and MARE as well as by the members of the UC-Advanced separation processes group (project coordinator). The first report with the analysis of physico-chemical, geographical and topographical characteristics of WWTPs in Cantabria, candidates to the installation of the first GRADISAL prototype will be delivered in the coming month.