Patents by Inventor Bente Elise Nielsen

Bente Elise Nielsen 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).

  • Process for enhancing dewatering of treated biosolids in a wastewater treatment system
    Patent number: 5954964
    Abstract: The present invention comprises a wastewater treatment process wherein the waste activated sludge is digested to produce treated biosolids which are then directed to a dewatering facility that removes water from the treated biosolids. Before or during the dewatering process, both a low molecular weight polymer and a high molecular weight polymer are added to the treated biosolids. The addition of the two polymers of different molecular weights results in the treated biosolids coagulating and then forming flocs of biosolids that effectively drives water from the flocs and renders the flocs more susceptible to an efficient and effective dewatering process.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: September 21, 1999
    Assignee: Kruger, Inc.
    Inventors: Bente Elise Nielsen, R. David Holbrook