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).
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Publication number: 20240190737Abstract: A moving bed biofilm reactor includes a tank body, a first tube, a second tube, a first guiding structure, a second guiding structure and a return pipe. A reaction zone is formed in the tank body by the first tube and the second tube. A three-phase separation zone is formed in the tank body by the first guiding structure and the second guiding structure. By using multi-layer horizontal water curtain disturbances formed by the first tube and the second tube, fluid contaminant could be well mixed in the reaction zone. Thereupon, gas desorption from bio carriers can be increased, the possibility for micro organisms to attach the bio carriers can be raised, the guiding of gas emission can be improved, and thus performance of the fluid treatment in the anaerobic biological process can be substantially enhanced.Type: ApplicationFiled: April 19, 2023Publication date: June 13, 2024Inventors: YI-HONG LIU, CHENG-CHIN CHANG, TING-TING CHANG, KUAN-FOO CHANG
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Patent number: 11795080Abstract: A microbial carrier and a device for treating wastewater are provided. The microbial carrier includes a bacteriophilic material and a plurality of foam cells, wherein the foam cells are disposed in the bacteriophilic material. The bactericidal material is a reaction product of a composite, wherein the composition includes a hydrophobic polyvinyl alcohol and a cross-linking agent, wherein the surface energy of the hydrophobic polyvinyl alcohol is 30 mJ/m2 to 58 mJ/m2.Type: GrantFiled: December 30, 2021Date of Patent: October 24, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ting-Ting Chang, Kuan-Foo Chang, Cheng-Chin Chang, Yi-Chun Liu, Mei-Chih Peng
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Publication number: 20230212046Abstract: A microbial carrier and a device for treating wastewater are provided. The microbial carrier includes a bacteriophilic material and a plurality of foam cells, wherein the foam cells are disposed in the bacteriophilic material. The bactericidal material is a reaction product of a composite, wherein the composition includes a hydrophobic polyvinyl alcohol and a cross-linking agent, wherein the surface energy of the hydrophobic polyvinyl alcohol is 30 mJ/m2 to 58 mJ/m2.Type: ApplicationFiled: December 30, 2021Publication date: July 6, 2023Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Ting-Ting CHANG, Kuan-Foo CHANG, Cheng-Chin CHANG, Yi-Chun LIU, Mei-Chih PENG
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Patent number: 11530133Abstract: 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: GrantFiled: August 7, 2020Date of Patent: December 20, 2022Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Li-Ching Chung, Guan-You Lin, Yi Ting Wang, Chun-Chi Lee, Tzu Yu Cheng, Shing-Der Chen, Kuan-Foo Chang, Hsin Shao
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Publication number: 20210188652Abstract: 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: ApplicationFiled: August 7, 2020Publication date: June 24, 2021Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Li-Ching Chung, Guan-You Lin, Yi Ting Wang, Chun-Chi Lee, Tzu Yu Cheng, Shing-Der Chen, Kuan-Foo Chang, Hsin Shao
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Publication number: 20190195757Abstract: 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: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Applicant: Industrial Technology Research InstituteInventors: Chun-Chi Lee, Shu-Kang Hsu, Min-Shan Wu, Yi-Ting Wang, Ting-Ting Chang, Kuan-Foo Chang
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Patent number: 8273246Abstract: 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: GrantFiled: June 10, 2009Date of Patent: September 25, 2012Assignee: Industrial Technology Research InstituteInventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng, Wang-Kuan Chang, Huey-Song You, Shan-Shan Chou
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Patent number: 8057673Abstract: 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: GrantFiled: May 28, 2009Date of Patent: November 15, 2011Assignee: Industrial Technology Research InstituteInventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng
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Publication number: 20100163482Abstract: 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: ApplicationFiled: June 10, 2009Publication date: July 1, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng, Wang-Kuan Chang, Huey-Song You, Shan-Shan Chou
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Publication number: 20100133179Abstract: 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: ApplicationFiled: May 28, 2009Publication date: June 3, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Kuan-Foo Chang, Sheng-Hsin Chang, Shwu-Huey Perng
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Patent number: 7410570Abstract: 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: GrantFiled: May 24, 2006Date of Patent: August 12, 2008Assignee: Industrial Technology Research InstituteInventors: Huey-Song You, Ming-Jing Peng, Kuan Foo Chang, Sheng Hsin Chang, Shwu Huey Perng
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Patent number: 7407580Abstract: 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 membraType: GrantFiled: June 28, 2006Date of Patent: August 5, 2008Assignee: Industrial Technology Research InstituteInventors: Huey-Song You, Kuan-Foo Chang, Sheng-Shin Chang, Shwu-Huey Perng, Shu-Kang Hsu
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Publication number: 20070193949Abstract: 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 membraType: ApplicationFiled: June 28, 2006Publication date: August 23, 2007Applicant: Industrial Technology Research InstituteInventors: Huey-Song You, Kuan-Foo Chang, Sheng-Shin Chang, Shwu-Huey Perng, Shu-Kang Hsu