Patents by Inventor Walter L. Schultz

Walter L. Schultz 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).

  • Patent number: 9227856
    Abstract: Described herein is a submerged plate membrane device intended for use in forward osmosis processes, particularly for concentrating various process streams such as those in ponds. Particular examples of feed streams that may be concentrated are for example the following feed solutions: brines, seawater, drilling mud, waste water, bio-digestate, and the like. Thus, the process and device described herein are useful for de-watering, and thus concentrating, the content of solar evaporation ponds and drilling mud ponds.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: January 5, 2016
    Assignees: DEAD SEA WORKS LTD, HYDRATION SYSTEMS LLC
    Inventors: Walter L. Schultz, Upen J. Bharwada, John R. Herron, Mark Schutter
  • Publication number: 20150360983
    Abstract: Disclosed herein are processes, methods, and devices for use in water reclamation, including a system comprising an osmotic membrane bioreactor (OMBR), a microporous membrane bioreactor (MBR), a biological nitrogen removal system (BNR), and a source of high osmotic pressure solution (draw solution), and a reconcentration process to achieve high water recovery at low energy expenditure, which may produce purified water streams of different qualities in parallel. Disclosed processes, methods, and systems for the treating of waste water may further provide for production other useful products, for example, fertilizers. One embodiment of the disclosed systems, processes, or methods may include a hybrid membrane bioreactor comprising a semipermeable membrane and a porous membrane.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 17, 2015
    Inventors: Pravin S. MURKUTE, Tzahi Y. CATH, Ryan W. HOLLOWAY, John R. HERRON, Keith A. LAMPI, Andrew WAIT, Walter L. SCHULTZ
  • Publication number: 20140001122
    Abstract: Described herein is a submerged plate membrane device intended for use in forward osmosis processes, particularly for concentrating various process streams such as those in ponds. Particular examples of feed streams that may be concentrated are for example the following feed solutions: brines, seawater, drilling mud, waste water, bio-digestate, and the like. Thus, the process and device described herein are useful for de-watering, and thus concentrating, the content of solar evaporation ponds and drilling mud ponds.
    Type: Application
    Filed: July 2, 2013
    Publication date: January 2, 2014
    Inventors: Walter L. Schultz, Upen J. Bharwada, John R. Herron, Mark Schutter