VWS technological excellence and innovation Research and development

VWS: technological excellence and innovation Research and development: a permanent priority to tackle environmental challenges and set our offer apart from the others Sharing of key resources with Veolia Environnement - 600 specialists worldwide; € 105 million invested in R&D in 2005 - Anjou-Recherche, CREED (Environment, Energy and Waste Research Center), Environmental Analysis Center A portfolio comprising 200 owned technologies and 1, 000 patents

VWS creator of technological solutions: Physicochemical treatments • Actiflo® • Hydrex® High-rate lamella clarifier used to produce drinking water, to treat wastewater and rain water, and used for tertiary treatment (final refining). VWS chemical component activity to preserve equipment, ensure equipment maintenance, improve equipment performance.

VWS creator of technological solutions: Biological treatments • Biostyr® Compact submerged biological aerated filter to eliminate carbon and nitrogen pollutants. • Bio. Denipho®/ Bio. Denitro® Sewage technologies activated to treat wastewater using a purifying biomass.

VWS creator of technological solutions: Membrane treatments • Orion Quattro, Orion TTS® Filtering technology combining reverse osmosis and continuous electrodeionization to produce ultra-pure water. • Biosep® • Reverse osmosis Submerged membrane bioreactor to treat concentrated effluents. Membrane technologies for the pre-treatment, washing or recycling of ultrafiltrates or for desalination.

VWST creator of technological solutions: Thermal treatments • Athos® • MED® Wet oxidation reactor for complete mineralization of wastewater sludge. Multiple Effect Desalination technology (municipal or industrial) with steam thermocompressor.

VWST creator of technological solutions: Treatments of air and odors • Aquilair® Physical and chemical deodorisation process involving the transfer of odorous gaseous molecules to a liquid phase. • Alizair® Biological deodorisation process (bioscrubber) using the biofiltration technique. • Odowatch® Solution based on electronic nose technology used to monitor and track odor impact for the entire water treatment installation. All VWS solutions are in