Patents by Inventor Gordon C. Page

Gordon C. Page 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).

  • Process for wastewater treatment
    Patent number: 4790940
    Abstract: Free cyanide-containing wastewater is treated to destroy the free cyanide content thereof by the step of treating said water with sulfur in the form of polysulfide in an integrated process wherein thiocyanate is also eliminated to produce a non-hazardous wastewater effluent and treating the wastewater in a second step with cultures of bacteria of the genus Thiobacillus in combination with nitrifying bacteria which oxidize ammonia to nitrite to nitrate. The first step is preferably carried out in the presence of a cationic surfactant, preferably a quaternary cationic surfactant, as a catalyst.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: December 13, 1988
    Assignee: Radian Corporation
    Inventors: Frank J. Castaldi, Timothy W. Trofe, Gordon C. Page, Kevin M. Adams
  • Process for wastewater treatment
    Patent number: 4737289
    Abstract: Free cyanide-containing wastewater is treated to destroy the free cyanide content thereof by the step of treating said water with sulfur in the form of polysulfide in an integrated process wherein thiocyanate is also eliminated to produce a non-hazardous wastewater effluent and treating the wastewater in a second step with cultures of bacteria of the genus Thiobacillus in combination with nitrifying bacteria which oxidize ammonia to nitrite and nitrite to nitrate. The first step is preferably carried out in the presence of added metallic zinc.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: April 12, 1988
    Assignee: Radian Corporation
    Inventors: Frank J. Castaldi, Timothy W. Trofe, Gordon C. Page, Kevin M. Adams