Patents by Inventor Gerard Faup

Gerard Faup has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for increasing sludge concentration in water purification installations
    Patent number: 5098572
    Abstract: A method of treating water with activated sludge, comprising a process for depolluting said water including a stage in which carbon pollution is oxidized, a nitrification stage which may optionally be associated with a denitrification state and/or a dephosphating stage, and a sludge ageing process. The method further includes a sludge concentration stage, said stage being performed upstream from the sludge ageing stage, said concentration being performed by phase separation using compressed air, e.g. in a flotation tank (3), and the concentrated sludge being recycled via the sludge ageing stage.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: March 24, 1992
    Assignee: Lyonnaise des Eaux
    Inventors: Gerard Faup, Jean-Marc Audic