Patents Assigned to Lyonnaise des Eaux
  • Patent number: 4485018
    Abstract: Process for clarifying water to coagulate and flocculate particles suspended therein, by introducing into the water an aqueous solution of ferric polychloride having a temperature of at least C.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: November 27, 1984
    Assignee: Societe Lyonnaise des Eaux et de l'Eclairage
    Inventors: Francois Fiessinger, Paul Thebault, Daniel Codiasse