New approaches and best practices for closing the material cycles within symbiosis cluster

The EU Horizon 2020 ULTIMATE promoted circular economy concepts within the framework of water smart industrial symbioses. It focused on industrial wastewater streams as resource for water, energy and material recovery. ULTIMATE developed and demonstrated 24 circular economy related technologies. In six out of nine case studies (i.e.; N. Prinsenland, Rosignano, Nafplio, Karmiel, Tain and Kalundborg), symbiosis network in regional area were demonstrated towards the implementation of different material recovery routes, which included recovery of nutrients from industrial wastewaters, use of by-products of local industries for wastewater treatment, recovery of high-value products (e.g.; antioxidant, polyphenols, sulphurs, metals). In addition, in this document are also reported results related to the use of innovative fluorescence sensors to monitor the removal of organic micropollutants during quaternary treatments of wastewater to comply with recent EU regulations on urban wastewater treatment and reuse.
Recovery of nutrients from industrial wastewater
Solutions for nutrients recovery were investigated in the ULTIMATE case studies in the Netherlands (Nieuw Prinsenland), Lleida (Spain), Tain (Scotland).