Patents by Inventor Thomas J. Larsen

Thomas J. Larsen 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).

  • Wastewater Treatment System
    Publication number: 20180002208
    Abstract: A system and method for treating wastewater includes two or more biological reaction zones separated by chamber walls. The system and method for treating wastewater includes static recycle of a mixed liquor from a second biological reaction zone to a first biological reaction zone.
    Type: Application
    Filed: August 21, 2017
    Publication date: January 4, 2018
    Applicant: Evoqua Water Technologies LLC
    Inventors: Thomas J. Larsen, Mark Pamperin, John Hartwick
  • Wastewater treatment system
    Patent number: 9764973
    Abstract: A system and method for treating wastewater includes two or more biological reaction zones separated by chamber walls. The system and method for treating wastewater includes static recycle of a mixed liquor from a second biological reaction zone to a first biological reaction zone.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: September 19, 2017
    Assignee: Evoqua Water Technologies LLC
    Inventors: Thomas J Larsen, Mark Pamperin, John Hartwick
  • Use of primary sludge for carbon source in an aerated-anoxic bioreactor system
    Patent number: 9409807
    Abstract: A method and system of treating wastewater using primary sludge is disclosed. The treatment system includes a primary separator that separates a carbon source comprising non-solubilized suspended carbon from a source of wastewater. The non-solubilized suspended carbon is solubilized and used as a source of carbon in an aerated anoxic treatment system.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: August 9, 2016
    Assignee: Evoqua Water Technologies LLC
    Inventors: Thomas J. Larsen, Michael L. Doyle
  • Wastewater Treatment System
    Publication number: 20160096754
    Abstract: A system and method for treating wastewater includes two or more biological reaction zones separated by chamber walls. The system and method for treating wastewater includes static recycle of a mixed liquor from a second biological reaction zone to a first biological reaction zone.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 7, 2016
    Inventors: Thomas J Larsen, Mark Pamperin, John Hartwick
  • USE OF PRIMARY SLUDGE FOR CARBON SOURCE IN AN AERATED-ANOXIC BIOREACTOR SYSTEM
    Publication number: 20140217015
    Abstract: A method and system of treating wastewater using primary sludge is disclosed. The treatment system includes a primary separator that separates a carbon source comprising non-solubilized suspended carbon from a source of wastewater. The non-solubilized suspended carbon is solubilized and used as a source of carbon in an aerated anoxic treatment system.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 7, 2014
    Applicant: Evoqua Water Technologies LLC
    Inventors: Thomas J. Larsen, Michael L. Doyle