Patents by Inventor Tieying Jin

Tieying Jin 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).

  • Preparation method for recycling inorganic salt in printing and dyeing wastewater
    Patent number: 11802068
    Abstract: The present application relates to a preparation method for recycling inorganic salt in printing and dyeing wastewater and comprises the following process steps: S1, performing impurity removal, softening, COD removal and decoloration on reverse osmosis (RO) membrane concentrated water to obtain pretreated wastewater; S2, performing two-stage electrodialysis on the wastewater obtained in step S1: returning fresh water obtained in a first-stage electrodialysis desalination chamber to a front end of the RO process, and taking saline water obtained in a concentration chamber as raw water of a second-stage electrodialysis desalination chamber and a second-stage electrodialysis concentration chamber; and returning the fresh water obtained by the second-stage electrodialysis desalination chamber to the first-stage electrodialysis concentration chamber; and S3, dealkalizing the concentrated saline water obtained in the step S2 and then adjusting the pH value to obtain concentrated saline water capable of being reuse
    Type: Grant
    Filed: February 6, 2022
    Date of Patent: October 31, 2023
    Assignees: Tiangong University, Zhejiang Jinmo Environmental Technology Co., Ltd
    Inventors: Haitao Wang, Na Chang, Yan Wang, Yinong Xu, Qiliang Wang, Rui Liu, Tieying Jin, Ruhan A, Hao Zhang, Wei Shao, Yanjun Jia
  • PREPARATION METHOD FOR RECYCLING INORGANIC SALT IN PRINTING AND DYEING WASTEWATER
    Publication number: 20220250958
    Abstract: The present application relates to a preparation method for recycling inorganic salt in printing and dyeing wastewater and comprises the following process steps: S1, performing impurity removal, softening, COD removal and decoloration on reverse osmosis (RO) membrane concentrated water to obtain pretreated wastewater; S2, performing two-stage electrodialysis on the wastewater obtained in step S1: returning fresh water obtained in a first-stage electrodialysis desalination chamber to a front end of the RO process, and taking saline water obtained in a concentration chamber as raw water of a second-stage electrodialysis desalination chamber and a second-stage electrodialysis concentration chamber; and returning the fresh water obtained by the second-stage electrodialysis desalination chamber to the first-stage electrodialysis concentration chamber; and S3, dealkalizing the concentrated saline water obtained in the step S2 and then adjusting the pH value to obtain concentrated saline water capable of being reuse
    Type: Application
    Filed: February 6, 2022
    Publication date: August 11, 2022
    Applicants: Tiangong University, Zhejiang Jinmo Environmental Technology Co., Ltd
    Inventors: Haitao Wang, Na Chang, Yan Wang, Yinong Xu, Qiliang Wang, Rui Liu, Tieying Jin, Ruhan A, Hao Zhang, Wei Shao, Yanjun Jia