Guyot Environnement: Revamping to improve waste recycling

Centre de tri et de valorisation de dechets - Guyot Environnement - Morlaix

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 8000 m² facility, entrusted to AKTID, is coming to fruition, with commissioning scheduled for the end of 2023. During the assembly, production was maintained on the old line, in operation since 2014, as was the SRF supply to local industrial customers. This was made possible by the strategic collaboration between AKTID and Guyot Environnement, who anticipated and managed the revamping effectively.

A FACILITY ADAPTED TO SEVERAL DIFFERENT WASTE TYPES: 

This new unit, capable of processing 65,000 tonnes of waste a year, aims to optimise waste sorting and recycling. The two production lines, with a total output of 24 tonnes per hour, handle waste from economic and construction activities such as rubble, metal, wood, cardboard, plastic, and film, on the one hand, and eco-furniture such as mattresses, sofas and household furniture, as well as automotive shredder residue (ASR) made of plastic, wood, rubber, foam, and textiles, on the other.

The main objective is to increase the waste recovery rate, firstly through recycling and then through the preparation of SRF. All of this contributes to the development of new sectors (EPR for construction, EPR for furniture, etc.), and meets the challenges of the ecological, energy and climate transition. The process at this facility is unique, scalable, agile and perfectly adapted to the different types of inflows.

A HIGH-PERFORMANCE SORTING PROCESS BY AKTID: 

As part of this modernisation, 30% of the existing process equipment was reused, sometimes without even being moved. The facility includes, among other items, the following equipment:

  • Optical sorters to separate flows by material (wood, PVC, etc.).
  • Overbands and eddy currents for extracting ferrous and non-ferrous metals.
  • Aeraulic separators to distinguish between heavy and light items, which make up the majority of SRFs.
  • Shredders and shears to adapt to the variety of different flows (padded and voluminous items, bulky items, etc.).
  • Sorting cabin with four belts to optimise the capture and quality of materials.

The whole system is supervised by ABI, enabling production and performance indicators to be monitored in real time using sensors and instant data processing.

MAXIMUM RECYCLING = REDUCTION OF LANDFILL:

The facility recovers 30% of waste (wood, metal, plastic) and recycles 60% of final waste into SRF. This fuel, with a lower calorific value of around 18,000 kJ/kg, will soon supply the future GUYOT Energies boiler plant in the port of Brest. Thanks to this revamping, the landfill rate has fallen from 30% to 10%, a significant step towards the national target of a 50% reduction in waste sent to landfill.

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