Patents by Inventor You-Shen Chen

You-Shen Chen 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).

  • Integrated technology in sequential treatment of organics and heavy metal ions wastewater
    Patent number: 7220360
    Abstract: This invention offers an integrated technology in sequential treatment of wastewater. Low biodegradable organics and heavy metal ions are both contained in wastewater from surface finishing processes. The aim of the invention is to find the solution for treatment of organics and heavy metal ions in complicated wastewater that contains organics and heavy metal ions sequentially. Low biodegradable organics are oxidized by a fenton process with pH ranging from 2 to 5 and temperature ranging from 20° C. to 100° C. Heavy metal ions are then treated by a ferrite process with pH ranging from 8 to 12 and temperature ranging from 20° C. to 100° C. The integrated technology of the fenton process and the ferrite process (2FP) is advantageous to treat the wastewater from surface finishing processes, decrease the production of iron sludge caused in the fenton process and increase the quality of ferrite products.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: May 22, 2007
    Assignee: National Cheng Kung University
    Inventors: Hung-Ta Chen, Min-Shing Tsai, Juu-En Chang, Tsair-Fuh Lin, Ting-Che Hsiao, Jun-Yi Wu, You-Shen Chen
  • Integrated technology in sequential treatment of organics and heavy metal ions wastewater
    Publication number: 20050274678
    Abstract: This invention offers an integrated technology in sequential treatment of wastewater. Low biodegradable organics and heavy metal ions are both contained in wastewater from surface finishing processes. The aim of the invention is to find the solution for treatment of organics and heavy metal ions in complicated wastewater that contains organics and heavy metal ions sequentially. Low biodegradable organics are oxidized by a fenton process with pH ranging from 2 to 5 and temperature ranging from 20° C. to 100° C. Heavy metal ions are then treated by a ferrite process with pH ranging from 8 to 12 and temperature ranging from 20° C. to 100° C. The integrated technology of the fenton process and the ferrite process (2FP) is advantageous to treat the wastewater from surface finishing processes, decrease the production of iron sludge caused in the fenton process and increase the quality of ferrite products.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 15, 2005
    Inventors: Hung-Ta Chen, Min-Shing Tsai, Juu-En Chang, Tsair-Fuh Lin, Ting-Che Hsiao, Jun-Yi Wu, You-Shen Chen