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Our local presence

We operate in more than 15 countries, close to the needs of our customers.

+120 locations worldwide

50 industrial sites in France

Innovating and uncovering new sources of value

R&D center. © Séché Environnement. Photo : Olivier Guerrin.

Welcome to our R&D center

Research and development center

Our R&D in figures

INDUSTRIAL IMPACT
~5% of consolidated revenue
directly or indirectly generated by our R&D efforts
SCIENTIFIC IMPACT
50 publications
and scientific articles 
INTELLECTUAL PROPERTY
24 patents
currently valid
PRIZES AND AWARDS
5
honorable distinctions ​  

Tackling economic and environmental challenges

A workshop to treat toxic gas cylinders

This process combines high security packing of gas cylinders into cages with a Deep Learning system that enables real-time analysis of the gas contained in the cylinders collected.
Static furnace in the brine regeneration unit at Trédi Saint-Vulbas. Séché Environnement. Photo: Cécile Rosset.

Regeneration of bromine water 

Bromine waste produced by synthetic applications for fine chemicals and APIs (active pharmaceutical ingredients) is regenerated and purified so it may be reused. This process preserves natural resources and generated 20 times less CO2 than extracting virgin bromine.
PCB decontamination and transformer recycling. © Séché Environnement. Photo : Olivier Guerrin.

Treatment and rehabilitation of PCB transformers

We designed a treatment chain to neutralize PCB-polluted oils and rehabilitate electric transformers.
Sludge treatment at the Trédi Hombourg site. © Séché Environnement. Photo : Olivier Guerrin

Creation of a channel to recover metal hydroxide sludge

Recovering this hazardous waste, which contains nickel, copper, cobalt and molybdenum, makes it possible to make ferroalloys used directly in the production of steel and metal components.
Pre-treatment unit for acid and self-heating waste at the Trédi site in Salaise-sur-Sanne (38). © Séché Environnement

Creation of a pretreatment workshop for acid waste and self-heating substances

The corosivity and reactivity of this sandy residue produced by the chemical synthesis of silicones is eliminated to make the waste easier to handle, transport and store.

Anticipating the demands of our industrial clients

Mercurial waste © Séché Environnement

Stabilization of mercury waste

The concrete in chlorine production plants is contaminated by droplets of mercury vapor. The process serves to neutralize the waste before sending it to a hazardous waste storage facility.
Our capacity for innovation © Séché Environnement

Depollution of a former foundry

Development of an active treatment of the hydroreactive metals contained in waste to avoid the risk of unwanted reactions.

Collaborative, future-facing projects

Plainénergie logo

Plainénergie

Treatment and energy conversion of a wide range of currently non-recoverable waste using pyrogasification and biological methanation, ultimately to produce renewable gas that can be injected into the current network.
MIMOSA Project © Séché Environnement

MIMOSA

This project seeks to enhance understanding of how the mercury content in combustion fumes can vary so as to better control and more effectively remove the element before the fumes are discharged into the atmosphere. 
MMAtwo

MMAtwo

This process intends to better recycle plexiglass (PMMA) by transforming PMMA waste into high quality methyl methacrylate (MMA) that can be reused in industry. 

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