Ports are crucial players in the circular economy. Both port facilities and vessels generate waste that must be managed to maximize circularity, contributing to greener, more sustainable ports. Through initiatives like Circularport, ports gain blockchain-certified information on the final destination of the waste they produce, as well as insights into the sustainability impact of its treatment. This project is also of particular interest to recycling companies, providing them with a direct connection to ports and the ability to certify the origin of the materials they receive.

Digital waste passports are created for waste documented in MARPOL receipts completed by shipping agents. These passports are subsequently linked to those of new materials produced by the recycler Adalmo, allowing Adalmo to certify the origin of the recycled materials supplied to its clients, primarily manufacturers. The Port of the Balearic Islands benefits from a sustainability dashboard, providing insights into the impact of its waste beyond the port. This includes data on the final environmental impact, based on the recovery and valorization of waste after processing by the recycler