Patents by Inventor Davy P.M. Ringoot

Davy P.M. Ringoot 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).

  • Advanced phosphorous recovery process and plant
    Patent number: 12024454
    Abstract: A method and plant for recovering phosphate from a biomass material, the biomass material suitably being a waste activated sludge from an upstream wastewater treatment process including a biological P removal process. The method includes an anaerobic digestion stage and steps for recovering independent streams rich in PO4 and Mg, or rich in PO4 and NH4, thereby increasing the amount of P recovered and avoiding struvite formation in the anaerobic digester and accessory equipment thereof, such as pipes.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: July 2, 2024
    Assignee: Cambi Technology AS
    Inventors: Hans Rasmus Holte, Davy P. M. Ringoot
  • Advanced Phosphorous Recovery Process and Plant
    Publication number: 20220017395
    Abstract: A method and plant for recovering phosphate from a biomass material, the biomass material suitably being a waste activated sludge from an upstream wastewater treatment process including a biological P removal process. The method includes an anaerobic digestion stage and steps for recovering independent streams rich in PO4 and Mg, or rich in PO4 and NH4, thereby increasing the amount of P recovered and avoiding struvite formation in the anaerobic digester and accessory equipment thereof, such as pipes.
    Type: Application
    Filed: November 21, 2019
    Publication date: January 20, 2022
    Inventors: Hans Rasmus Holte, Davy P.M. Ringoot