Imerys, Transform to perform

France – Substantial Reduction in Pollutant Discharges, Significant Energy Savings


Sustainable development

France – Substantial Reduction in Pollutant Discharges, Significant Energy Savings

Since March 2009, a new emissions-processing system has helped improve the ecological and economic performance of the French roof-tile site at Pargny sur Saulx (Marne).

The new emissions-processing system at the Pargny sur Saulx (France) roof-tile plant involves treating emissions by the injection of sodium bicarbonate. Rapidly, the new setup has cut all pollutant concentrations by a factor of 35 and, more particularly, by a factor of 40 in the case of sulfur dioxide. Given that emissions are now below the threshold for the TGAP(1) air pollution tax, the site is no longer classified as polluting.

The process also allows the plant to inject emissions back into the energy recovery network in order to decrease consumption. At constant production volumes, the gain corresponds to 12.5% of gas consumption.

The treatment of emissions as it is now practiced in Pargny results in a residual waste that the Group seeks to exploit. Tests were performed in the laboratory for this waste to be reused as flux in the bricks. A semi-industrial test was conducted on the Mably (Loire) site.

(1) General tax on polluting activities.

Depuis 2005, notre périmètre de reporting Développement Durable englobe toutes les activités sur lesquelles nous exerçons un contrôle opérationnel.

Sustainable Development 2011
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Our Sustainable Development policy supports the Group’s long-term strategy. Actions are guided by a three-year plan that sets goals for each of our areas of activity. The three-year plan also provides for gradual, continuous performance improvement.

Environmental focus

We work to reduce our environmental impact and use natural resources efficiently. We control our activities’ impact on the environment and set up management systems that allow us to improve our performance continuously.

Social Focus

Health and Safety, Human Resources, Ethic, and dialogue with our neighboring communities are among our main corporate social responsibility priorities.