Ahlstrom, a global leader in high performance fiber-based materials, has received the French Trophy of the Ecological and Economical Technologies for its innovative photocatalytic filter media utilized in the first anti-odor building.
The competition was organized by ADEME (French environment & energy control agency) and the prize presented on November 27 during Pollutec Horizons 2007, held in Villepinte, France.
This revolutionary anti-odor modular building comprises an innovative Ahlstrom filter media integrated in the flexible wall structure. This complex captures and destroys the organic pollutants and thus purifies the air. For instance, one third of a 1,500 m² building covered with this unique photocatalytic material allows the storage of 3,200 tons of sludge.
Studies have shown that no odors could be found within 50m of the building, and that up to 95% of the odor pollution is reduced from inside to outside. The test was performed at the La Gère plant of Ahlstrom, France, equipped with the first anti-odor building for the storage of sludge from the water treatment station. This new building, built by the group Locabri, has allowed significant reduction in the odor pollution affecting the neighborhood.
Developed and patented by Ahlstrom, this new technology consists of a photocatalytic media combining a layer of active carbon with a nonwoven which successfully fixes the titanium dioxide (TiO2), a natural catalyst. Thanks to the photocatalytic process, the active carbon stays active for 4 years. The filter media is produced at Ahlstrom's Tampere plant in Finland.
These innovative buildings are manufactured and distributed by the group Locabri, in France, which has created ICare, a company to market this unique concept of anti-odor building. The expectations of development are high considering that it can be used in many industrial applications such as compost stations, effluents from the food industry, sludge or mud treatments.
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