Patents by Inventor Xilin Chai

Xilin Chai 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: 11691893
    Abstract: A method for directly and deeply purifying high concentration organic wastewater, specifically includes the following steps of: (1) fortified precipitation treatment; (2) rapid filtration of sediment of suspended solids; (3) pH value adjustment; (4) hydrolysis acidification where pH value adjusted waste water enters a water distribution unit in which a biological hanging film filter is arranged to fortify an anaerobic hydrolysis acidification function of the waste water; and (5) bio-filter treatment. A rapid and low cost treatment method for high concentration, high ammonia and high nitrogen organic waste water is provided by means of water and air distribution by the biological filtering bed, an air-water backwashing bed layer structure, setting of a temperature regulation system for the biological filtering bed, and a combined process of the biological filtering bed with a fortified sedimentation unit, a suspension object sediment rapid filtration unit, and like unit structures.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: July 4, 2023
    Assignee: JIANGXI GAIA ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Xilin Chai, Shijun Wang
  • Publication number: 20200055740
    Abstract: A method for directly and deeply purifying high concentration organic wastewater, specifically includes following steps of: (1) fortified precipitation treatment; (2) rapid filtration of sediment of suspended solids; (3) pH value adjustment; (4) hydrolysis acidification: pH value adjusted waste water enters a water distribution unit in which biological hanging film filter is arranged to fortify an anaerobic hydrolysis acidification function of the waste water; and (5) bio-filter treatment. A rapid and low cost treatment method for high concentration, high ammonia and high nitrogen organic waste water is provided by means of water and air distribution by the biological filtering bed, an air-water backwashing bed layer structure, setting of a temperature regulation system for the biological filtering bed, and a combined process of the biological filtering bed with a fortified sedimentation unit, a suspension object sediment rapid filtration unit, and like unit structures.
    Type: Application
    Filed: March 17, 2017
    Publication date: February 20, 2020
    Inventors: Xilin Chai, Shijun Wang