Patents by Inventor Quanbao Zhao

Quanbao Zhao 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).

  • NUTRIENT RECOVERY SYSTEMS AND METHODS
    Publication number: 20210017034
    Abstract: Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times.
    Type: Application
    Filed: February 10, 2020
    Publication date: January 21, 2021
    Inventors: Quanbao Zhao, Stephen W. Dvorak, Shulin Chen, Craig Frear, Bryan J. VanLoo
  • Nutrient recovery systems and methods
    Patent number: 10556804
    Abstract: Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 11, 2020
    Assignees: DVO, INC., WASHINGTON STATE UNIVERSITY, ANDGAR CORPORATION
    Inventors: Quanbao Zhao, Stephen W. Dvorak, Shulin Chen, Craig Frear, Bryan J. VanLoo
  • NUTRIENT RECOVERY SYSTEMS AND METHODS
    Publication number: 20140314657
    Abstract: Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times.
    Type: Application
    Filed: December 18, 2013
    Publication date: October 23, 2014
    Inventors: Quanbao Zhao, Stephen W. Dvorak, Shulin Chen, Craig Frear, Bryan J. VanLoo
  • Nutrient recovery systems and methods
    Patent number: 8613894
    Abstract: Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 24, 2013
    Assignees: DVO, Inc., Washington State University, Andgar Corporation
    Inventors: Quanbao Zhao, Stephen W. Dvorak, Shulin Chen, Craig Frear, Bryan J. VanLoo
  • Integration of anaerobic digestion in an algae-based biofuel system
    Patent number: 8287732
    Abstract: Systems and methods for the treatment of lipid-extracted algae biomass and recycling nutrients are provided. The lipid-extracted algae biomass is hydrolyzed prior to anaerobic digestion, and the products generated by anaerobic digestion are further processed to yield by-products that are of use either for external use or as process inputs to carry out specific steps within an integrated algal growth and anaerobic digestion process designed to minimize economic costs, required costly inputs while improving upon system capabilities.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 16, 2012
    Assignee: Washington State University Research Foundation
    Inventors: Shulin Chen, Craig Frear, Quanbao Zhao
  • NUTRIENT RECOVERY SYSTEMS AND METHODS
    Publication number: 20120118035
    Abstract: Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times.
    Type: Application
    Filed: June 10, 2011
    Publication date: May 17, 2012
    Inventors: Quanbao Zhao, Stephen W. Dvorak, Shulin Chen, Craig Frear, Bryan J. VanLoo
  • INTEGRATION OF ANAEROBIC DIGESTION IN AN ALGAE-BASED BIOFUEL SYSTEM
    Publication number: 20110091954
    Abstract: Systems and methods for the treatment of lipid-extracted algae biomass and recycling nutrients are provided. The lipid-extracted algae biomass is hydrolyzed prior to anaerobic digestion, and the products generated by anaerobic digestion are further processed to yield by-products that are of use either for external use or as process inputs to carry out specific steps within an integrated algal growth and anaerobic digestion process designed to minimize economic costs, required costly inputs while improving upon system capabilities.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 21, 2011
    Inventors: Shulin Chen, Craig Frear, Quanbao Zhao