Patents by Inventor John F. Shultis

John F. Shultis 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 treatment of wastewater with a modular biological fluidized bed reactor system
    Publication number: 20120118821
    Abstract: A biological wastewater treatment process and modular apparatus wherein activated sludge is recirculated in all of aeration, fluidized bed and return sludge phases in the apparatus.
    Type: Application
    Filed: August 8, 2011
    Publication date: May 17, 2012
    Inventors: Mark Y. Kigel, Oleksandr O. Kovalenko, Leonard B. Goldman, John F. Shultis
  • Modular biological fluidized bed reactor system
    Patent number: 8025798
    Abstract: A biological wastewater treatment process and modular apparatus wherein activated sludge is recirculated in all of aeration, fluidized bed and return sludge phases in the apparatus.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: September 27, 2011
    Assignee: MYK Consultant, Inc.
    Inventors: Mark Y. Kigel, Oleksandr O. Kovelenko, Leonard B. Goldman, John F. Shultis
  • Method of detoxification and stabilization of soils contaminated with chromium ore waste
    Patent number: 5304710
    Abstract: A method for treating chromium ore waste contaminated soils by detoxification, fixation, immobilization and stabilization comprising the steps of soil grinding, pre-activating, reducing chromium valiancy, forming insoluble metal hydroxides, and incapsulating the chromium compounds containing agglomerates to prevent potential chromium leaching from the soil according with the standard toxicity characteristic leaching procedure requirements. Additive agents such as an acidic solution, a bivalent iron sulfur containing salt, e.g. ferrous sulfate, an alkalifying agent, e.g. calcium lime slurry or lime kiln dust or caustic, a stabilizing agent, e.g. cement, cement kiln dust, silicates, polyelectrolytes, and the like are also disclosed as assisting in the chromium immobilization reactions by reacting with certain constituents in the soil.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: April 19, 1994
    Assignee: Envar Services, Inc.
    Inventors: Mark Y. Kigel, John F. Shultis, Eric S. Goldman, Mark K. Demytrk