ABSTRACT
In Portugal, Decree-Law nº 102-D/2020 determines the establishment of networks for the selective collection of biowaste or the separation and recycling of biowaste at the source. The goal of this demanding is to decrease landfill deposition and ensure that, starting from 2030, landfills will not accept waste that can be recycled or recovered, such as biowaste from urban solid waste. This study determines the potential for energy generation through anaerobic digestion of biowaste collected from 14 Portuguese municipalities based on a previously published report on solutions for the separation, collection, and recycling at the source of biowaste. Assuming a population of 181,839 inhabitants and a selective collection of biowaste ranging from 11,659 to 17,808 tons by 2030, it is possible to generate up to 7.6 GWh of electricity. This electricity can meet the energy needs of up to 1650 people for a year and avoid until 1402 tons of CO2.
