The document outlines a program organized by the Group Knowledge for Development (GK4D) focused on sustainable solid waste and sewage treatment in Lebanon through a cluster-based approach for economic development. It encompasses study tours and training aimed at federations of municipalities to enhance capacity, promote best practices, and align with sustainable development goals. The program includes various activities in Catalonia from July 17-22, 2016, designed to address local environmental management and foster collaboration among municipalities, businesses, and research institutions.