Patents by Inventor Balakrishnan Narayanan

Balakrishnan Narayanan 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).

  • Waste activated sludge anaerobic contact waste stream treatment process-recycle
    Publication number: 20060027495
    Abstract: The waste activated sludge anaerobic contact waste stream treatment recycle method and system for treating a waste stream may have an influent waste stream communicated to an anaerobic contact element. A waste activated sludge produced from a second influent waste stream process may be introduced into the anaerobic contact element and mixed with the influent waste stream for processing therein. The anaerobic contact element may be maintained for conditions to facilitate the uptake of soluble organic pollutants and to form a fluid having a particulate matter contained therein. The resulting fluid may have the particulate matter separated from the fluid to produce a treated effluent and a waste sludge. The waste sludge may be further separated to retain a first portion as a recycled sludge to the anaerobic contact element and to output a second portion as an effluent waste sludge.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 9, 2006
    Inventors: Stephen Hough, Balakrishnan Narayanan
  • Waste activated sludge anaerobic contact waste stream treatment process
    Patent number: 6921486
    Abstract: The waste activated sludge anaerobic contact waste stream treatment method and system for treating a waste stream may have an influent waste stream communicated to an anaerobic contact element. A waste activated sludge produced from a second influent waste stream process may be introduced into the anaerobic contact element and mixed with the influent waste stream for processing therein. The anaerobic contact element may be maintained for conditions to facilitate the uptake of soluble organic pollutants and to form a fluid having a particulate matter contained therein. The resulting fluid may have the particulate matter separated from the fluid to produce a treated effluent and a waste sludge.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: July 26, 2005
    Inventors: Stephen Hough, Balakrishnan Narayanan
  • Waste activated sludge anaerobic contact waste stream treatment process
    Publication number: 20040094475
    Abstract: The waste activated sludge anaerobic contact waste stream treatment method and system for treating a waste stream may have an influent waste stream communicated to an anaerobic contact element. A waste activated sludge produced from a second influent waste stream process may be introduced into the anaerobic contact element and mixed with the influent waste stream for processing therein. The anaerobic contact element may be maintained for conditions to facilitate the uptake of soluble organic pollutants and to form a fluid having a particulate matter contained therein. The resulting fluid may have the particulate matter separated from the fluid to produce a treated effluent and a waste sludge.
    Type: Application
    Filed: November 14, 2002
    Publication date: May 20, 2004
    Inventors: Stephen Hough, Balakrishnan Narayanan