The urban biorefinery concept came up to promote the recovery of valuable resources contained in the urban waste to be used as a raw matter within the production system. Urban waste includes municipal solid waste, excess of biomass from pruning and gardening, and the domestic wastewater. The role of the Public Administration in the management and the development of successful policies is key for guaranteeing the fitting of the public actions to the basic principia of circular bioeconomy, which are defined through the EU agreements. These agreements focus on the practical application of the UN Sustainable Development Goals 6 and 12, which have been ratified by the member States.

This Workshop will analyze the role of the Public Administration in the practical application of the urban biorefinery concept, through the participation of local, regional, and national bodies. The scope of the Workshop encompasses those geographic zones where three research projects operate, which are all based on the application of the circular bioeconomy principia on the urban waste management:

• Proyecto DEEP PURPLE: conversion of diluted mixed urban bio-wastes into sustainable materials and products in flexible purple photobiorefineries (Ref. 837998), funded by the Bioindustries Consortium and the EC H2020 program

• Proyecto BIOTRES_CM: Bioeconomía Urbana: de Biorresiduos a Biocombustibles y Bioproductos de Interés Industrial (S2018/EMT-4344), funded by the Madrid’s Region and the European Regional Development Fund.

• Proyecto REMTAVARES CM: Red Madrileña de tratamientos para la reutilización de aguas residuales y valorización de fangos (S2018 / EMT-4341), funded by the Madrid’s Region and the European Regional Development Fund.

The second workshop organized by the three consortiums aims to be a meeting point between public administration officials and scientists who are experts in the use of waste for the production of high added-value compounds and renewable energies in order to learn about the cutting edge of activities, research needs and the solution to these issues.