Patents by Inventor Ligeng Wu

Ligeng Wu 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).

  • Use of the flue gas desulfurization byproduct from thermal power plants and facilities and a method for alkali soil amelioration
    Patent number: 8007560
    Abstract: The present invention discloses a novel use of the FGD byproduct from thermal power plants and facilities and the specific method for alkali soil amelioration. In this method, after sampling, amount of Na2CO3, NaHCO3, Mg(HCO3)2,±)Na and ±)Mg can be calculated by analysis. According to the component in FGD byproduct from thermal power plants and facilities, the amount for FGD byproduct from thermal power plants and facilities needed in the alkali soil to be ameliorated can be determined. The FGD byproduct from thermal power plants and facilities are scattered on the surface according to the alkalization degree. After irrigating, the soil is operated just like common land. This invention allows the FGD byproduct from thermal power plants and facilities to be utilized effectively and economically, changing from it from waste to a useful substance. Moreover, it provides a method for alkali soil amelioration, which is fast, efficient, consumes less water, is cost effective, and promising.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: August 30, 2011
    Assignee: Tsinghua University
    Inventors: Changhe Chen, Xuchang Xu, Masayoshi Sadakata, Ligeng Wu, Shujuan Wang, Yuejin Li, Yan Li
  • Use of the Flue Gas Desulfurization Byproduct from Thermal Power Plants and Facilities and a Method for Alkali Soil Amelioration
    Publication number: 20070157690
    Abstract: The present invention discloses a novel use of the FGD byproduct from thermal power plants and facilities and the specific method for alkali soil amelioration. In this method, after sampling, amount of Na2CO3, NaHCO3, Mg(HCO3)2,±)Na and ±)Mg can be calculated by analysis. According to the component in FGD byproduct from thermal power plants and facilities, the amount for FGD byproduct from thermal power plants and facilities needed in the alkali soil to be ameliorated can be determined. The FGD byproduct from thermal power plants and facilities are scattered on the surface according to the alkalization degree. After irrigating, the soil is operated just like common land. This invention allows the FGD byproduct from thermal power plants and facilities to be utilized effectively and economically, changing from it from waste to a useful substance. Moreover, it provides a method for alkali soil amelioration, which is fast, efficient, consumes less water, is cost effective, and promising.
    Type: Application
    Filed: August 31, 2006
    Publication date: July 12, 2007
    Applicant: Tsinghua University
    Inventors: Changhe Chen, Xuchang Xu, Masayoshi Sadakata, Ligeng Wu, Shujuan Wang, Yuejin Li, Yan Li