Wastes: Solutions, Treatments and Opportunities is an international conference that takes place every two years, in different Portuguese cities. Organized by CVR – Centre for Waste Valorization since 2011, the Wastes Conference aims at bringing together academia and industry experts from the Waste Management and Recycling sectors, from around the world, offering state of the art knowledge and sharing experiences with all in attendance. The 5th edition of the conference will take place at the Campus of FCT-UNL - Faculty of Sciences and Technology of the Universidade Nova de Lisboa, Caparica - Lisbon, from 4 to 6 September 2019.