Patents by Inventor Arjunkrishna Venkatesan

Arjunkrishna Venkatesan 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).

  • Methods and systems for pH treatment and extraction of leachable resources and pollutants from sludge
    Patent number: 10315943
    Abstract: A pH treatment and method for extraction of leachable resources and pollutants from sludge. A volume of wastewater sludge is initially dewatered followed by adding pH adjusting agents to the dewatered sludge to remove acid/base-soluble contaminants. The acid/base-soluble contaminants are flushed out or dewatered from the treated product. Treated sludge can then be sent to storage and held for beneficial uses.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 11, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Arjunkrishna Venkatesan, Rolf U. Halden
  • Methods and Systems for pH Treatment and Extraction of Leachable Resources and Pollutants from Sludge
    Publication number: 20160304376
    Abstract: A pH treatment and method for extraction of leachable resources and pollutants from sludge. A volume of wastewater sludge is initially dewatered followed by adding pH adjusting agents to the dewatered sludge to remove acid/base-soluble contaminants. The acid/base-soluble contaminants are flushed out or dewatered from the treated product. Treated sludge can then be sent to storage and held for beneficial uses.
    Type: Application
    Filed: April 7, 2016
    Publication date: October 20, 2016
    Applicant: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Arjunkrishna Venkatesan, Rolf U. Halden