
Construction du filtre
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The challenge of the demonstration is significant: to show the compatibility between the objectives of biodiversity preservation, heritage conservation, and social well-being with those of water treatment.
Order to preserve the quality of the Seine, it has become necessary to treat pollutants (macropollutants and micropollutants) from a busy road, a section of the Paris ring road. The chosen purification solution is a vertical reed bed filter located in the heart of the Bois de Boulogne.
The previous studies conducted by the Water and Sanitation Technical Department of the City of Paris between 2011 and 2014 defined a comprehensive project for storing effluents in the Bugeaud storm overflow (SO), followed by their treatment using a reed bed filter, before discharging the treated effluents into the hydrographic network of the Bois de Boulogne and then into the Seine. The location for the reed bed filter was determined in 2014 in consultation with the Architects of the Buildings of France (ABF) and the Site Inspector.
The City of Paris carried out a sanitation works program between July 2018 and December 2020 in the northeastern part of the Bois de Boulogne. The objective was to reduce pollutant discharges into the Seine from the Bugeaud storm overflow (SO) and to eliminate the discharge of clear water from the Saint-James pond and the Neuilly pond into the combined sewer system of the municipality of Neuilly-sur-Seine.
The LIFE ADSORB project seeks to test new methods of decontaminating water mainly from rainwater runoff from the ring road with rare contributions from wastewater. The objective is to reduce 95% of mineral and organic pollution (macro and micro pollutants).