Patents by Inventor Bernard Capdeville, deceased

Bernard Capdeville, deceased 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 for purifying waste water using activated slude to increase purification yields
    Patent number: 5759403
    Abstract: The invention concerns a process for increasing the purification yield in the activation tank of a station for the purification of waste waters employing the so-called "activated sludge" process. According to the invention, talc, pyrophyllite, kaolin or mica, possibly cationized, are added to the biomass, these having a particle size less than 100 .mu.m in quantities of up to 2.0 g per liter of waste waters. A great improvement in solid/liquid separation is observed at the outlet from the activation tank as well as an increase in the purification yield for carbonaceous pollution, nitrogenous pollution and phosphate-containing pollution even when the station operates at medium or high load.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: June 2, 1998
    Assignee: Naintsch Mineralwerke Gessellschaft M.B.H.
    Inventors: Frederic Clauss, Norbert Wamser, Manfred Hangl, Harald Trooper, Bernard Capdeville, deceased