CircularChain, the circular economy blockchain





CircularChain, the circular economy blockchain
Functional definition
Use of blockchain technology
The technology underlying bitcoin and other cryptocurrencies, blockchain has been used in the financial sector since 2008. Transparent and impossible to falsify, the technology is also an ideal response to the challenges of traceability, and many industries are already using it for this purpose.
CircularChain, the circular economy blockchain designed by SUEZ, meets the growing need for transparency and trust with regard to the health and environmental quality of secondary raw materials. It is a concrete solution that promotes material reuse and recycling.
Using treatment sludge in agriculture: a first use case
Since we are convinced that putting organic matter back in the soil is more virtuous than using exclusively chemicals and mining products, we transform organic waste into agricultural soil amendments.
Thanks to blockchain, the traceability of the organic matter is now 100% secure, shared and transparent. The first use of blockchain in this sector, the CircularChain solution designed by SUEZ reassures both sludge producers and farmers by offering more control over the traceability of their agricultural recovery channels.
Collecting, storing and retrieving reliable, forgery-proof information using blockchain technology
Thanks to the digitalisation of operational data, sludge producers can independently supervise the recovery process and monitor their sectors dynamically. At the same time, farmers have a tracking and management tool for their agricultural inputs, guaranteeing the quality and quantity of the sludge they spread.
CircularChain ensures that the information provided is reliable by sharing it within the ecosystem1. The tool provides exemplary traceability and generates trust between all the players in the sector.

Securing the analysis results with blockchain technology is a key means of guaranteeing the compliance of sewage sludge spreading. Our involvement with CircularChain enables us to reassure all stakeholders that our analysis results are reliable. It is a symbol of trust for our customers and the ecosystem.
Hubert Roebroeck , Operational Director at AUREA, an agriscience analysis laboratory and agri-environmental consultancy
Building on the experience gained, CircularChain will host other traceability chains to strengthen trust, a key element of the circular economy.
CircularChain and SludgeAdvanced represent a new stage in SUEZ's pioneering strategy for organic waste management and digitalisation.

1 Consisting of SUEZ, local authorities and industries that produce sludge, laboratories, transport companies, agricultural contractors, state agencies, water management agencies and possibly processing sites
For more information
Listen to our podcast Lead the Change, episode 2 ‘The blockchain & the circular economy, with Marc Cheverry, Director of Circular Economy and Waste at ADEME, Antoine Le Feuvre, CEO of Digital Solutions for Citizens, Consumers and Companies at SUEZ, Smart & Environmental Solutions, and Hervé Pillaud, a former farmer and author.
