Patents by Inventor Dundun SHI

Dundun SHI 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).

  • Deep sludge dewatering method using electroosmosis with filter bags
    Patent number: 11008242
    Abstract: A deep sludge dewatering method using electroosmosis with filter bags, including (1) placing a filter bag on a slope on which a cathode electrode is arranged; (2) injecting sludge into the filter bag, and after the filter bag is filled with the sludge, closing an inlet of the filter bag; and (3) laying an anode electrode on the filter bag filled with the sludge, and connecting the cathode electrode and the anode electrode to a DC power supply via an electric wire, and carrying out energization for electroosmosis so that water flows down the slope. The present invention can be used for recycling of the sludge produced in underground and tunnel excavation projects, and has the advantages of large processing capacity, simple process, good treatment effect and available resource recycling.
    Type: Grant
    Filed: July 6, 2019
    Date of Patent: May 18, 2021
    Assignee: PowerChina Huadong Engineering Corporation Limited
    Inventors: Yingchun Zhuang, Rui Song, Chen Liu, Dundun Shi, Shiming Liu
  • DEEP SLUDGE DEWATERING METHOD USING ELECTROOSMOSIS WITH FILTER BAGS
    Publication number: 20200140311
    Abstract: A deep sludge dewatering method using electroosmosis with filter bags, including (1) placing a filter bag on a slope on which a cathode electrode is arranged; (2) injecting sludge into the filter bag, and after the filter bag is filled with the sludge, closing an inlet of the filter bag; and (3) laying an anode electrode on the filter bag filled with the sludge, and connecting the cathode electrode and the anode electrode to a DC power supply via an electric wire, and carrying out energization for electroosmosis so that water flows down the slope. The present invention can be used for recycling of the sludge produced in underground and tunnel excavation projects, and has the advantages of large processing capacity, simple process, good treatment effect and available resource recycling.
    Type: Application
    Filed: July 6, 2019
    Publication date: May 7, 2020
    Inventors: Yingchun ZHUANG, Rui SONG, Chen LIU, Dundun SHI, Shiming LIU