Patents by Inventor Kuan-Foo Chang

Kuan-Foo Chang 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).

  • Publication number: 20210188652
    Abstract: A method for recovering lithium is provided. The method includes the following steps. A lithium-containing solution is provided. A manganese oxide adsorbent is immersed in the lithium-containing solution, and a reducing agent is added to carry out an adsorption reaction, and the manganese oxide adsorbent is immersed in a solution containing an oxidizing agent to carry out a desorption reaction.
    Type: Application
    Filed: August 7, 2020
    Publication date: June 24, 2021
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Li-Ching Chung, Guan-You Lin, Yi Ting Wang, Chun-Chi Lee, Tzu Yu Cheng, Shing-Der Chen, Kuan-Foo Chang, Hsin Shao
  • Publication number: 20190195757
    Abstract: Provided is a detection method for heavy metal ions that includes the following steps. A waste water is flowed through an ion-imprinted polymer tube for adsorbing at least two kinds of target heavy metal ions. The ion-imprinted polymer tube is rinsed to remove a non-target object from the ion-imprinted polymer tube. The target heavy metal ions in the ion-imprinted polymer tube are desorbed by using an acid liquid. An electrochemical method is performed to detect concentrations of the target heavy metal ions.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Applicant: Industrial Technology Research Institute
    Inventors: Chun-Chi Lee, Shu-Kang Hsu, Min-Shan Wu, Yi-Ting Wang, Ting-Ting Chang, Kuan-Foo Chang
  • Patent number: 8273246
    Abstract: A system for treating ammonia-based wastewater is provided. The system includes a first reactor, including: denitrification bacteria for denitrification; a second reactor disposed on the back of the first reactor, wherein the second reactor includes an aerator and aerobic heterotrophic bacteria, and has an HRT of less than 6 hours; a third reactor disposed on the back of the first reactor, wherein the third reactor contains nitrification bacteria carried on the carriers for improving nitrification; and a solid-liquid-separating reactor disposed on the back of the third for separating the solids and liquids in the effluent of the third reactor.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 25, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng, Wang-Kuan Chang, Huey-Song You, Shan-Shan Chou
  • Patent number: 8057673
    Abstract: Treatment system for wastewater containing ammonium is provided. The treatment system of the present invention includes an ammonia oxidation reactor and a membrane reactor disposed on the back of the ammonia oxidation reactor. The ammonia oxidation reactor includes biological carriers for carrying the ammonium oxidation bacteria and nitrite oxidation bacteria, a pH level controller for increasing the pH level to above 7.5, and a DO (dissolved oxygen) controller for reducing the DO content to less than 1.0 mg/L. The membrane reactor composed of a membrane and an aerator is used to separate the solids and liquids of the effluent of the ammonia oxidation reactor. In addition, a method for treating wastewater containing ammonium is also provided.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: November 15, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng
  • Publication number: 20100163482
    Abstract: A system for treating ammonia-based wastewater is provided. The system includes a first reactor, including: denitrification bacteria for denitrification; a second reactor disposed on the back of the first reactor, wherein the second reactor includes an aerator and aerobic heterotrophic bacteria, and has an HRT of less than 6 hours; a third reactor disposed on the back of the first reactor, wherein the third reactor contains nitrification bacteria carried on the carriers for improving nitrification; and a solid-liquid-separating reactor disposed on the back of the third for separating the solids and liquids in the effluent of the third reactor.
    Type: Application
    Filed: June 10, 2009
    Publication date: July 1, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng, Wang-Kuan Chang, Huey-Song You, Shan-Shan Chou
  • Publication number: 20100133179
    Abstract: Treatment system for wastewater containing ammonium is provided. The treatment system of the present invention includes an ammonia oxidation reactor and a membrane reactor disposed on the back of the ammonia oxidation reactor. The ammonia oxidation reactor includes biological carriers for carrying the ammonium oxidation bacteria and nitrite oxidation bacteria, a pH level controller for increasing the pH level to above 7.5, and a DO (dissolved oxygen) controller for reducing the DO content to less than 1.0 mg/L. The membrane reactor composed of a membrane and an aerator is used to separate the solids and liquids of the effluent of the ammonia oxidation reactor. In addition, a method for treating wastewater containing ammonium is also provided.
    Type: Application
    Filed: May 28, 2009
    Publication date: June 3, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng
  • Patent number: 7410570
    Abstract: A separating device. The separating device is used in a tank, for separating solid, gas, and liquid of polluted water, including a first panel, and a plurality of first dividers. The first panel is disposed in the tank, includes a first body and a plurality of first tubes. The first body has a plurality of first openings. The first tubes, connected with the first openings, are disposed under the first body. The first dividers, corresponding to the first tubes, are horizontally disposed under the first tubes. A gap is formed between each first divider and each first tube. The first tube projects to the first divider, forming a projecting perimeter within the first divider.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: August 12, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Huey-Song You, Ming-Jing Peng, Kuan Foo Chang, Sheng Hsin Chang, Shwu Huey Perng
  • Patent number: 7407580
    Abstract: The present invention relates to a wastewater treating system and method for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor contains methanogenic bacteria, PAO and denitrifying bacteria for eliminating the organic carbon in denitrification by denitrifying bacteria, adsorbing partial organic carbon and releasing phosphate by PAO and; metabolizing organic carbon to form methane gas by methanogenic bacteria; a second reactor disposed at the rearward of first reactor, second reactor treats the effluent from first reactor by denitrifying bacteria and PAO, denitrifying bacteria is able to denitrifying the nitrate and PAO is able to process the phosphorous releasing; a third reactor disposed rearward of second reactor, which comprises PAO, heterotrophic bacteria and nitrifying bacteria, wherein PAO is applied for phosphorous accumulating process, the heterotrophic bacteria is applied for carbon removal process, the nitrifying bacteria is applied for nitrifying process; and a membra
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: August 5, 2008
    Assignee: Industrial Technology Research Institute
    Inventors: Huey-Song You, Kuan-Foo Chang, Sheng-Shin Chang, Shwu-Huey Perng, Shu-Kang Hsu
  • Publication number: 20070193949
    Abstract: The present invention relates to a wastewater treating system and method for removing pollutants of carbon, nitrogen, phosphorous, comprising: a first reactor contains methanogenic bacteria, PAO and denitrifying bacteria for eliminating the organic carbon in denitrification by denitrifying bacteria, adsorbing partial organic carbon and releasing phosphate by PAO and; metabolizing organic carbon to form methane gas by methanogenic bacteria; a second reactor disposed at the rearward of first reactor, second reactor treats the effluent from first reactor by denitrifying bacteria and PAO, denitrifying bacteria is able to denitrifying the nitrate and PAO is able to process the phosphorous releasing; a third reactor disposed rearward of second reactor, which comprises PAO, heterotrophic bacteria and nitrifying bacteria, wherein PAO is applied for phosphorous accumulating process, the heterotrophic bacteria is applied for carbon removal process, the nitrifying bacteria is applied for nitrifying process; and a membra
    Type: Application
    Filed: June 28, 2006
    Publication date: August 23, 2007
    Applicant: Industrial Technology Research Institute
    Inventors: Huey-Song You, Kuan-Foo Chang, Sheng-Shin Chang, Shwu-Huey Perng, Shu-Kang Hsu