Patents by Inventor Xiangyi Qiao

Xiangyi Qiao 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).

  • THE PROCESS OF USING DEMINERALIZED WATER FOR CHLORATE REDUCTION IN ON-SITE BRINE ELECTROCHLORINATION SYSTEMS
    Publication number: 20230373833
    Abstract: An electrochlorination process includes treating water from a source of water in an advanced water conditioning system that removes at least a portion of anions and cations from the water and produces demineralized water, blending the demineralized water with sodium chloride to form a brine solution, and treating the brine solution in an electrolyzer to form a disinfection solution including sodium hypochlorite having a concentration of chlorate of less than 0.25 mg/L.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 23, 2023
    Applicant: Evoqua Water Technologies Ltd
    Inventors: JOSHUA GRIFFIS, SIMON P. DUKES, WENXIN DU, DANIEL R. CORRADO, FREDERICK C. WILKINS, XIANGYI QIAO, ROMULO DADOR CONDE, DAVID BONNICK, RYAN FLOOD
  • Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process
    Patent number: 11208338
    Abstract: A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed. A method for reducing a concentration of one or more contaminants in contaminated water including contacting zero valent iron media with a conditioning additive, contacting contaminated water with conditioned zero valent iron media, and introducing a reaction additive is also disclosed. The conditioning additive and reaction additive may each contain an aluminum salt.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 28, 2021
    Assignees: Evoqua Water Technologies LLC, The Texas A&M University System
    Inventors: Yongheng Huang, Michael Wismer, Lew Andrew Reyes, Xiangyi Qiao, Simon Dukes, Frank Sassaman, David Berger
  • SELENIUM REMOVAL USING ALUMINUM SALT AT CONDITIONING AND REACTION STAGES TO ACTIVATE ZERO-VALENT IRON (ZVI) IN PIRONOX PROCESS
    Publication number: 20190352203
    Abstract: A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed. A method for reducing a concentration of one or more contaminants in contaminated water including contacting zero valent iron media with a conditioning additive, contacting contaminated water with conditioned zero valent iron media, and introducing a reaction additive is also disclosed. The conditioning additive and reaction additive may each contain an aluminum salt.
    Type: Application
    Filed: July 31, 2019
    Publication date: November 21, 2019
    Applicants: The Texas A&M University System, Evoqua Water Technologies LLC
    Inventors: Yongheng Huang, Michael Wismer, Lew Andrew Reyes, Xiangyi Qiao, Simon Dukes, Frank Sassaman, David Berger
  • Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (ZVI) in pironox process
    Patent number: 10377648
    Abstract: A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed. A method for reducing a concentration of one or more contaminants in contaminated water including contacting zero valent iron media with a conditioning additive, contacting contaminated water with conditioned zero valent iron media, and introducing a reaction additive is also disclosed. The conditioning additive and reaction additive may each contain an aluminum salt.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: August 13, 2019
    Assignees: The Texas A&M University System, Evoqua Water Technologies LLC
    Inventors: Yongheng Huang, Michael Wismer, Lew Andrew Reyes, Xiangyi Qiao, Simon Dukes, Frank Sassaman, David Berger
  • SELENIUM REMOVAL USING ALUMINUM SALT AT CONDITIONING AND REACTION STAGES TO ACTIVATE ZERO-VALENT IRON (ZVI) IN PIRONOX PROCESS
    Publication number: 20170129792
    Abstract: A system containing a reactor vessel including zero valent iron media, a source of a conditioning additive, a source of a reaction additive, and a process control subsystem is disclosed. A method for reducing a concentration of one or more contaminants in contaminated water including contacting zero valent iron media with a conditioning additive, contacting contaminated water with conditioned zero valent iron media, and introducing a reaction additive is also disclosed. The conditioning additive and reaction additive may each contain an aluminum salt.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 11, 2017
    Applicants: The Texas A&M University System, Evoqua Water Technologies LLC
    Inventors: Yongheng Huang, Michael Wismer, Lew Andrew Reyes, Xiangyi Qiao, Simon Dukes, Frank Sassaman, David Berger