Patents by Inventor Chenglian FENG

Chenglian FENG 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 ecological risk assessment of heavy metal in river basin sediment based on toxicity effect
    Patent number: 10768161
    Abstract: A method for determining ecological risk, particularly a method for the ecological risk assessment of a heavy metal in a river basin sediment based on a toxicity effect. The assessment method includes screening the main aquatic organisms in a river basin; sampling a sediment, and determining and detecting the heavy metal type; measuring the concentration of the heavy metal in the sediment; collecting the heavy metal release coefficient; collecting the heavy metal toxicity data and fitting the data; determining the heavy metal HCsi value according to a fitting equation; calculating the heavy metal toxicity response coefficient; calculating the ecological risk index of the heavy metal. This method can further include calculating the comprehensive ecological risk index of various types of heavy metals. The method can accurately reflect the ecological risk of a heavy metal on aquatic organisms in a river basin.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: September 8, 2020
    Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Zhiyou Fu, Fengchang Wu, Lulu Chen, Yingchen Bai, Chenglian Feng, Haiqing Liao, Wenjing Guo, Huixian Li
  • METHOD FOR ECOLOGICAL RISK ASSESSMENT OF HEAVY METAL IN RIVER BASIN SEDIMENT BASED ON TOXICITY EFFECT
    Publication number: 20190004024
    Abstract: A method for determining ecological risk, particularly a method for the ecological risk assessment of a heavy metal in a river basin sediment based on a toxicity effect. The assessment method includes screening the main aquatic organisms in a river basin; sampling a sediment, and determining and detecting the heavy metal type; measuring the concentration of the heavy metal in the sediment; collecting the heavy metal release coefficient; collecting the heavy metal toxicity data and fitting the data; determining the heavy metal HCsi value according to a fitting equation; calculating the heavy metal toxicity response coefficient; calculating the ecological risk index of the heavy metal. This method can further include calculating the comprehensive ecological risk index of various types of heavy metals. The method can accurately reflect the ecological risk of a heavy metal on aquatic organisms in a river basin.
    Type: Application
    Filed: November 1, 2016
    Publication date: January 3, 2019
    Inventors: Zhiyou FU, Fengchang WU, Lulu CHEN, Yingchen BAI, Chenglian FENG, Haiqing LIAO, Wenjing GUO, Huixian LI