Patents by Inventor Kavithaa Loganathan

Kavithaa Loganathan 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).

  • System and method for advanced oxidation of treated sewage effluent
    Patent number: 11027994
    Abstract: A system and method for advanced oxidation (10) of treated sewage effluent provide additional treatment to treated sewage effluent (TSE) for reuse thereof. The method includes exposing TSE to ozone and hydrogen peroxide to oxidize contaminants; coagulating remaining waste in the TSE; flocculating the coagulated TSE; holding the flocculated treated sewage effluent in a settling tank for sedimentation; removing coarse suspended particles from the flocculated TSE by filtration after sedimentation; and removing fine suspended particles by ultrafiltration of the TSE after removing the coarse suspended particles. The system includes a chemical mixing tank (16); a homogenizing tank (22); an advanced oxidation process system (24); a rapid mixer; a flocculation tank (28); a sedimentation tank (32); a sand filter (34); and at least one ultrafiltration system (38), (36).
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: June 8, 2021
    Assignee: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT
    Inventors: Saad Y. Jasim, Jayaprakash Saththasivam, Kavithaa Loganathan
  • SYSTEM AND METHOD FOR ADVANCED OXIDATION OF TREATED SEWAGE EFFLUENT
    Publication number: 20190248681
    Abstract: A system and method for advanced oxidation (10) of treated sewage effluent provide additional treatment to treated sewage effluent (TSE) for reuse thereof. The method includes exposing TSE to ozone and hydrogen peroxide to oxidize contaminants; coagulating remaining waste in the TSE; flocculating the coagulated TSE; holding the flocculated treated sewage effluent in a settling tank for sedimentation; removing coarse suspended particles from the flocculated TSE by filtration after sedimentation; and removing fine suspended particles by ultrafiltration of the TSE after removing the coarse suspended particles. The system includes a chemical mixing tank (16); a homogenizing tank (22); an advanced oxidation process system (24); a rapid mixer; a flocculation tank (28); a sedimentation tank (32); a sand filter (34); and at least one ultrafiltration system (38), (36).
    Type: Application
    Filed: June 19, 2017
    Publication date: August 15, 2019
    Applicant: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENT
    Inventors: SAAD Y. JASIM, JAYAPRAKASH SATHTHASIVAM, KAVITHAA LOGANATHAN
  • Platinum-free monometallic and bimetallic nanoparticles as ring-opening catalysts
    Patent number: 9040449
    Abstract: Nanoparticle catalyst compositions and methods for preparation of same are described. The nanoparticle catalysts are platinum-free and are useful in effecting selective ring-opening reactions, for example in upgrading heavy oil. The catalyst may be of monometallic composition, or may comprise an alloyed or core-shell bimetallic composition. The nanoparticles are of controlled size and shape.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: May 26, 2015
    Assignee: Governors of the University of Alberta
    Inventors: Natalia Semagina, Xing Yin, Jing Shen, Kavithaa Loganathan