Patents by Inventor Gennadiy Sverdlov

Gennadiy Sverdlov 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).

  • System and method for removal of fluoride from wastewater using single fluoride sensing electrode
    Patent number: 6645385
    Abstract: A system for removing fluoride from wastewater is provided. The system comprises a reaction tank for processing said wastewater by adding calcium salts, a filtration tank for removing the precipitated fluoride formed in the reaction tank, a single fluoride electrode disposed at the reaction tank for measuring a concentration of fluoride in the influent wastewater and providing an output signal, and a programmable controller for controlling addition of said calcium salts into said reaction tank. The programmable controller defines a setpoint of fluoride concentration in the reaction tank and automatically controls addition of calcium salts based on the setpoint and the output signal provided by the single fluoride electrode. A method of removing fluoride from wastewater is also provided.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Ionics, Incorporated
    Inventors: Gerald A. Krulik, Gennadiy Sverdlov, William Hannan
  • Method for simultaneous removal of arsenic and fluoride from aqueous solutions
    Patent number: 6613230
    Abstract: A method of removing arsenic and fluoride from aqueous solutions in the same process is provided. Specifically, the pH of the aqueous solution is adjusted to a pH in the range of about 5 to 8. A combination of calcium salts, and ferric or aluminum salts are added to form insoluble arsenic and fluoride bearing solids. The solids are then removed from the aqueous solution.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: September 2, 2003
    Assignee: Ionics, Incorporated
    Inventors: Gerald A. Krulik, Paul H. Dick, Josh H. Golden, Jay Jung, Gennadiy Sverdlov
  • System and method for removal of fluoride from wastewater using single fluoride sensing electrode
    Publication number: 20020117456
    Abstract: A system for removing fluoride from wastewater is provided. The system comprises a reaction tank for processing said wastewater by adding calcium salts, a filtration tank for removing the precipitated fluoride formed in the reaction tank, a single fluoride electrode disposed at the reaction tank for measuring a concentration of fluoride in the influent wastewater and providing an output signal, and a programmable controller for controlling addition of said calcium salts into said reaction tank. The programmable controller defines a setpoint of fluoride concentration in the reaction tank and automatically controls addition of calcium salts based on the setpoint and the output signal provided by the single fluoride electrode. A method of removing fluoride from wastewater is also provided.
    Type: Application
    Filed: September 21, 2001
    Publication date: August 29, 2002
    Inventors: Gerald A. Krulik, Gennadiy Sverdlov, William Hannan
  • System and method for simultaneous removal of arsenic and fluoride from aqueous solutions
    Publication number: 20020113023
    Abstract: A method of removing arsenic and fluoride from aqueous solutions in the same process is provided. Specifically, the pH of the aqueous solution is adjusted to a pH in the range of about 5 to 8. A combination of calcium salts, and ferric or aluminum salts are added to form insoluble arsenic and fluoride bearing solids. The solids are then removed from the aqueous solution.
    Type: Application
    Filed: June 27, 2001
    Publication date: August 22, 2002
    Inventors: Gerald A. Krulik, Paul H. Dick, Josh H. Golden, Jay Jung, Gennadiy Sverdlov