Clemessy covers the water and waste sectors. In addition to the maintainability of the production plant, the challenges in the field of waste relate to increasing recycling and recovery, and in the field of water, reducing extractions and discharges by treating wastewater.

Our teams work on processes in the industrial engineering and heating businesses. They are involved in the upgrading and maintenance of facilities in compliance with the regulations in force.

Water treatment processes

In the water treatment sector, Clemessy has developed expertise to meet customers’ major challenges:

  • producing and distributing drinking water,
  • collecting and treating wastewater
  • collecting, treating and disposing of waste (hazardous, non-hazardous, effluent).

Our teams therefore provide you with support when it comes to:

  • monitoring & control and supervision processes
  • water quality measurements,
  • effluent treatment,
  • production of process water.

Waste treatment

Climate and energy engineering is part of Eiffage Énergie Systèmes’ expertise. For the Clemessy brand, the teams implement their expertise on industrial processes. They deploy solutions such as:

  • Monitoring & Control on incineration processes (combustion furnace, recovery boiler);
  • Emissions measurements. Added to the expertise of Secauto, Clemessy handles the installation of turnkey measurement solutions, the installation of data acquisition and processing systems.

Aware of the major environmental issues, the teams design and build turnkey projects for cogeneration plants and heating and cooling production plants, thus meeting the needs of primary or renewable energies (biomass, photovoltaic, geothermal, ...).


Industries of the future

Discover how our experts can assist you in your transformation towards tomorrow’s evolutions. 

Our references
  • Syctom

    The teams carried out work to bring the incinerator into compliance.

  • Syndicat Interdépartemental pour l'Assainissement de l'Agglomération Parisienne (SIAAP)

    As part of the modernization of the plant, Clemessy implemented a monitoring & control system.

  • Veolia

    Veolia awarded Clemessy a 3-year maintenance contract for a waste energy recovery unit.