Patents by Inventor Fangzhai ZHANG

Fangzhai ZHANG 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).

  • Indoor grey water purification and reuse device, system and method for public buildings
    Patent number: 12281466
    Abstract: An indoor grey water purification and reuse device, system and method for public buildings is disclosed. The grey water purification and reuse device includes a grey water storage tank, a grey water treatment assembly and a pneumatic reclaimed water tank assembly which are sequentially arranged from top to bottom. The grey water storage tank is used for storing grey water from one floor above collected by a grey water collecting device. The grey water treatment assembly is used for carrying out multistage purification treatment on the grey water in the grey water storage tank. The pneumatic reclaimed water tank assembly is used for disinfecting reclaimed water subjected to multistage purification treatment and supplying water to reclaimed water reuse facilities on the current floor of the building in a constant-pressure mode.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: April 22, 2025
    Assignee: China Architecture Design & Research Group Co., Ltd.
    Inventors: Yongwang Liu, Li Zhao, Xingchao Lu, Wenchao Yin, Xin Zhao, Jianye Li, Fangzhai Zhang
  • APPARATUS AND METHOD FOR SYNCHRONOUSLY TREATING SEWAGE AND SLUDGE THROUGH COMBINATION OF STEP-FEED PARTIAL NITRIFICATION AND ANAEROBIC AMMONIA OXIDATION
    Publication number: 20230071009
    Abstract: Disclosed is an apparatus and method for synchronously treating sewage and sludge through a step-feed partial nitrification coupling anaerobic ammonia oxidation process, belonging to the biological treatment field.
    Type: Application
    Filed: November 9, 2022
    Publication date: March 9, 2023
    Applicant: BEIJING UNIVERSITY OF TECHNOLOGY
    Inventors: Yongzhen PENG, Fangzhai ZHANG, Zhong WANG, Hao JIANG, Shang REN, Jingang QUI
  • Indoor Grey Water Purification and Reuse Device, System and Method for Public Buildings
    Publication number: 20230075157
    Abstract: An indoor grey water purification and reuse device, system and method for public buildings is disclosed. The grey water purification and reuse device includes a grey water storage tank, a grey water treatment assembly and a pneumatic reclaimed water tank assembly which are sequentially arranged from top to bottom. The grey water storage tank is used for storing grey water from one floor above collected by a grey water collecting device. The grey water treatment assembly is used for carrying out multistage purification treatment on the grey water in the grey water storage tank. The pneumatic reclaimed water tank assembly is used for disinfecting reclaimed water subjected to multistage purification treatment and supplying water to reclaimed water reuse facilities on the current floor of the building in a constant-pressure mode.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 9, 2023
    Inventors: Yongwang LIU, Li ZHAO, Xingchao LU, Wenchao YIN, Xin ZHAO, Jianye LI, Fangzhai ZHANG