Patents by Inventor Wang CAO

Wang CAO 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).

  • Polyhedral spherical denitrifying packing and use method thereof
    Patent number: 12221368
    Abstract: Provided are a polyhedral spherical denitrifying packing and a use method thereof. An outer surface of the polyhedral spherical denitrifying packing is composed of a plurality of conical pieces, and each of the conical pieces has a vacancy. The method for using the packing above includes: placing the polyhedral spherical denitrifying packing in packing area; adding inoculation sludge into the packing area, and forming biofilm; feeding raw sewage into the packing area through a water inlet of the denitrification reactor, subjecting the sewage to denitrification reaction when flowing through the packing area with the biofilm; refeeding a part of sewage discharged from the packing area into the packing area through the water inlet of the denitrification reactor via a circulating tube; making the other part of the sewage discharged from the packing area flow into clarification area, and discharging through a water outlet of the denitrification reactor.
    Type: Grant
    Filed: May 23, 2023
    Date of Patent: February 11, 2025
    Assignee: Zhihe Environmental Science and Technology Co., Ltd
    Inventors: Haisong Li, Dengke Yan, Xiaolei Chen, Zicong Xu, Peiji Hu, Wang Cao
  • POLYHEDRAL SPHERICAL DENITRIFYING PACKING AND USE METHOD THEREOF
    Publication number: 20240182336
    Abstract: Provided are a polyhedral spherical denitrifying packing and a use method thereof. An outer surface of the polyhedral spherical denitrifying packing is composed of a plurality of conical pieces, and each of the conical pieces has a vacancy. The method for using the packing above includes: placing the polyhedral spherical denitrifying packing in packing area; adding inoculation sludge into the packing area, and forming biofilm; feeding raw sewage into the packing area through a water inlet of the denitrification reactor, subjecting the sewage to denitrification reaction when flowing through the packing area with the biofilm; refeeding a part of sewage discharged from the packing area into the packing area through the water inlet of the denitrification reactor via a circulating tube; making the other part of the sewage discharged from the packing area flow into clarification area, and discharging through a water outlet of the denitrification reactor.
    Type: Application
    Filed: May 23, 2023
    Publication date: June 6, 2024
    Inventors: Haisong LI, Dengke YAN, Xiaolei CHEN, Zicong XU, Peiji HU, Wang CAO