Waste storage

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Storage facility at Changé © Séché Environnement.

A historic business for the Group

The purpose of the waste management business is to preserve the quality of our environment by preventing any impact on soil and water. Since 1985, Séché Éco-Industries has been developing know-how and providing solutions for the management of non-recyclable waste.

The Pôle Environnement de Changé is an ICPE (Installation Classée pour la Protection de l’Environnement) authorized by prefectoral decree. The decree specifies the nature and volume of authorized waste, as well as the measures implemented to guarantee control of environmental impacts. All activities are part of a monitoring plan
(water quality, air quality), which are controlled by the Administration (local and regional DREAL services).

A historical activity at the Changé site, the non-hazardous waste storage facilities, formerly known as Class 2, provide a high environmental quality solution for their safety.
Non-hazardous non-recyclable waste (household waste, sorting rejects…) is confined in storage cells fitted with equipment to manage the effluents produced by the waste during its natural degradation (biogas and leachates). The sealing systems deployed go beyond regulatory requirements.

Forhazardous waste, formerly known as Class 1, Séché Éco-Industries opened a storage center in 1994. The waste treated comes from a wide range of economic activities: surface treatment (paint shops, galvanizing baths, etc.), waste treatment by incineration, urban development operations, polluted soil, etc.
Depending on the nature of the waste and its condition, it may undergo pre-treatment by stabilization. They are then confined in dedicated storage cells, equipped with specific sealing and monitoring systems. Each stage of treatment is monitored: sampling prior to acceptance, during input, post-stabilization (at the mixer outlet), and topographical tracking of cell filling, to ensure full traceability.

Other types of waste are also monitored

Other types of waste are treated in a differentiated way due to their nature, such as gypsum waste, isolated from non-hazardous waste so as not to alter the quality of the biogas.

Non-hazardous waste

Non-hazardous, non-recyclable waste (household waste, sorting rejects, etc.) is confined in storage cells fitted with equipment to manage the effluents produced by the waste during its natural degradation (biogas and leachates). The sealing systems deployed exceed regulatory requirements.

Non-hazardous waste from local authorities

  • Residual household waste
  • All-purpose and bulky waste from waste collection centers
  • Non-reusable wastewater treatment plant sludge
  • Waste
  • Residual household waste
  • All-purpose and bulky waste from waste collection centers
  • Non-reusable wastewater treatment plant sludge
  • Waste

Non-hazardous waste from economic activities

  • Non-recyclable ordinary industrial waste
  • Low-polluted soils
  • Automotive shredder residue
  • Non-recyclable ordinary industrial waste
  • Low-polluted soils
  • Automotive shredder residue

Hazardous waste

Hazardous waste storage facilities have a reinforced waterproofing system (layer of clay material, geomembrane, geotextile)

Hazardous waste from local authorities

Waste from the incineration of non-hazardous  (flue gas treatment residues) and hazardous waste (flue gas treatment residues and bottom ash)

Waste from the incineration of non-hazardous  (flue gas treatment residues) and hazardous waste (flue gas treatment residues and bottom ash)

Hazardous waste from economic activities

  • Sludge from industrial water treatment
  • REFIDIS
  • Waste
  • Filtration dust
  • Thermal process residues (slag)
  • Land and soil polluted by hydrocarbons and heavy metals
  • Sludge from industrial water treatment
  • REFIDIS
  • Waste
  • Filtration dust
  • Thermal process residues (slag)
  • Land and soil polluted by hydrocarbons and heavy metals

The laboratory

Before arriving on site, all waste must be analyzed, accepted and controlled. Waste can be accepted as is or after treatment. This is known as stabilization.
The carrier must present a waste identification form (FIP), and the load is checked for radioactivity.

Our laboratory is made up of a team of 15 people.
They are in charge of characterizing and analyzing waste before it arrives on site by:

  • Waste formulation and stabilization 
  • Le contrôle de non radioactivité

Our team also carries out environmental analyses and monitoring such as:

  • atmospheric discharges and fallout
  • water discharges
  • soil and groundwater monitoring

The sorting center

Our latest-generation sorting center enables us to respond to and support local authorities' proactive approach to waste prevention and recovery

Energy production

Depuis septembre 2017, la Ville de Laval dispose du tout premier réseau alimenté par un combustible spécialement préparé à partir de déchets jusque-là non valorisables. Ce réseau alimente en chauffage l'équivalent de 6 400 logements dans différents quartiers de la ville.

Preserving biodiversity

Séché Éco-Industries' Environment Division in Changé has made biodiversity a major component of its corporate strategy.

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