Patents by Inventor Qiankun CHEN

Qiankun CHEN 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).

  • Application of fermentation broth of potamogeton crispus in the removal of nitrogen in constructed wetlands
    Patent number: 9994468
    Abstract: It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: June 12, 2018
    Assignee: NANJING UNIVERSITY
    Inventors: Liuyan Yang, Qiankun Chen, Yiying Jiao, Quan Zhang, Li Li, Xu Chen
  • APPLICATION OF FERMENTATION BROTH OF POTAMOGETON CRISPUS IN THE REMOVAL OF NITROGEN IN CONSTRUCTED WETLANDS
    Publication number: 20170210654
    Abstract: It discloses an application of a fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands. The fermentation broth of Potamogeton crispus is prepared by the following method: collecting, draining off and grinding the Potamogeton crispuses, then, placing the grinded Potamogeton crispuses into a fermentation tank, mixing them with domesticated fermented sludge, and then adding water and fermenting the mixed liquor at a constant temperature, removing the residue of the Potamogeton crispuses, and obtaining the prepared fermentation broth of Potamogeton crispus. The present invention also discloses an application of the fermentation broth of Potamogeton crispus in the removal of nitrogen in constructed wetlands.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 27, 2017
    Inventors: Liuyan YANG, Qiankun CHEN, Yiying JIAO, Quan ZHANG, Li LI, Xu CHEN