Guyot Environnement

Guyot Environnement is taking a new step forward in waste management with the revamping of its Solid Recovered Fuel (SRF) preparation unit.

The design and construction of this 8,000 m² facility, entrusted to AKTID, are now coming to fruition, with commissioning scheduled for the end of 2023.

During the installation phase, production from the former line, in operation since 2014, was maintained, as was the supply of SRF to local industrial customers. This was made possible thanks to the strategic collaboration between AKTID and Guyot Environnement, who anticipated and managed the revamping process efficiently.

A facility designed to handle multiple waste streams: Revamping

This new unit, capable of processing 65,000 tonnes of waste per year, is designed to optimize waste sorting and recovery.

The two production lines, with a combined throughput of 24 tonnes per hour, handle commercial and industrial waste on one side.

as well as construction waste such as rubble, metals, wood, cardboard, plastics and films, while the second line processes eco-furniture waste including mattresses, sofas and household furniture, as well as automotive shredder residues (ASR) composed of plastics, wood, rubber, foam and textiles.

The primary objective is to increase waste recovery rates, first through recycling and then through the preparation of Solid Recovered Fuel (SRF). The project also supports the development of new extended producer responsibility (EPR) schemes (construction EPR, furniture EPR, etc.) and addresses the challenges of ecological, energy and climate transition.

The process implemented in this facility is unique, scalable and agile, perfectly suited to the diversity of incoming waste streams.

A high-performance sorting process by AKTID:

As part of this modernization project, 30% of the existing process equipment was reused, in some cases without even being relocated. The installation includes, among others, the following equipment:

Mechanical screens to separate materials according to size.
Optical sorters to distinguish materials by type (wood, PVC, etc.).
Overband magnets and eddy current separators to extract ferrous and non-ferrous metals.
Air separators to differentiate heavy from light fractions, the latter being predominant in SRF.
Shredders and shears to handle the heterogeneity of the various waste streams (bulky, padded or oversized items, etc.).
A sorting cabin equipped with four conveyor belts to optimize material recovery and quality.

The entire system is supervised by ABI, enabling real-time monitoring of production and performance indicators through sensors and instant data processing.

Maximum recovery, reduced landfill: Revamping

The facility enables 30% of the waste (wood, metals, plastics) to be recycled and 60% of the residual waste to be recovered as Solid Recovered Fuel (SRF) for energy production. With a lower calorific value of approximately 18,000 kJ/kg, this fuel will soon supply the future GUYOT Energies heating plant at the Port of Brest.

Thanks to this revamping project, the landfill rate has been reduced from 30% to 10%. A significant step forward toward the national objective of cutting landfilled waste by 50%.