Patents by Inventor HUILIN YIN

HUILIN YIN 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).

  • Method for stabilizing fluorides and arsenic in soil
    Patent number: 11179758
    Abstract: A method for stabilizing fluorides and arsenic in soil includes: step 1, adding a calcium-containing compound to the soil contaminated by fluorides and arsenic, stirring uniformly, and standing for curing; step 2, adding an iron-containing compound to the mixture obtained in step 1, stirring uniformly, and standing for curing; and step 3, adding water to the mixture obtained in step 2, optionally adding a pH adjusting agent to adjust the gravimetric water content to 30%-40%, and standing for curing. The method uses calcium-containing and iron-containing compounds in a step-by-step manner, makes full use of the advantages of different passivation materials, combines the advantages of all reagents, and establishes an economical, efficient and environmentally friendly method for stabilizing fluorides and arsenic in soil to achieve effective remediation of contaminated soil.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: November 23, 2021
    Assignee: CHINESE ACADEMY OF ENVIRONMENTAL PLANNING
    Inventors: Zhenyu Ding, Ning Sun, Zhandong Hao, Nuchao Xu, Zongwen Zhang, Hongxia Hu, Fengping Liu, Yankun Zhang, Xin Zhou, Huilin Yin
  • METHOD FOR STABILIZING FLUORIDES AND ARSENIC IN SOIL
    Publication number: 20210276059
    Abstract: A method for stabilizing fluorides and arsenic in soil includes: step 1, adding a calcium-containing compound to the soil contaminated by fluorides and arsenic, stirring uniformly, and standing for curing; step 2, adding an iron-containing compound to the mixture obtained in step 1, stirring uniformly, and standing for curing; and step 3, adding water to the mixture obtained in step 2, optionally adding a pH adjusting agent to adjust the gravimetric water content to 30%-40%, and standing for curing. The method uses calcium-containing and iron-containing compounds in a step-by-step manner, makes full use of the advantages of different passivation materials, combines the advantages of all reagents, and establishes an economical, efficient and environmentally friendly method for stabilizing fluorides and arsenic in soil to achieve effective remediation of contaminated soil.
    Type: Application
    Filed: January 8, 2020
    Publication date: September 9, 2021
    Applicant: CHINESE ACADEMY OF ENVIRONMENTAL PLANNING
    Inventors: ZHENYU DING, NING SUN, ZHANDONG HAO, NUCHAO XU, ZONGWEN ZHANG, HONGXIA HU, FENGPING LIU, YANKUN ZHANG, XIN ZHOU, HUILIN YIN