The 400 M€ project carried out in consortium by Eiffage Genie Civil's Paris region teams took nearly five years of work involving construction workers from Roland, ETMF, Eiffage Route and Eiffage Genie Civil Reseaux.
These biofiltration and membrane treatment lines are part of the Seine Aval water purification plant's modernization programme launched 15 years ago by the Siaap (Paris region public sanitation service). They will reinforce the nitrification and denitrification units built by the company several years ago, via more than 40 additional biofilters enabling the elimination of dissolved pollutants.