Patents by Inventor Wang-Kuan Chang
Wang-Kuan 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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Patent number: 10688438Abstract: An electrodialysis module includes at least one base unit. The base unit includes a working tank, a first ion-exchange membrane, a second ion-exchange membrane, at least one first electrode, and at least two second electrodes. The first ion-exchange membrane and the second ion-exchange membrane are located in the working tank. The first ion-exchange membrane and the second ion-exchange membrane together divide the working tank into two electrode compartments and a desalination compartment therebetween. The at least one first electrode is disposed in the desalination compartment. The at least two second electrodes are disposed in each of the electrode compartments, respectively, in which the at least two second electrodes and the at least one first electrode have different polarities.Type: GrantFiled: December 21, 2017Date of Patent: June 23, 2020Assignee: Industrial Technology Research InstituteInventors: Po-Yu Hu, Teh-Ming Liang, Wang-Kuan Chang, Ren-Yang Horng, Chi-Chung Liao
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Publication number: 20180280882Abstract: An electrodialysis module includes at least one base unit. The base unit includes a working tank, a first ion-exchange membrane, a second ion-exchange membrane, at least one first electrode, and at least two second electrodes. The first ion-exchange membrane and the second ion-exchange membrane are located in the working tank. The first ion-exchange membrane and the second ion-exchange membrane together divide the working tank into two electrode compartments and a desalination compartment therebetween. The at least one first electrode is disposed in the desalination compartment. The at least two second electrodes are disposed in each of the electrode compartments, respectively, in which the at least two second electrodes and the at least one first electrode have different polarities.Type: ApplicationFiled: December 21, 2017Publication date: October 4, 2018Applicant: Industrial Technology Research InstituteInventors: Po-Yu Hu, Teh-Ming Liang, Wang-Kuan Chang, Ren-Yang Horng, Chi-Chung Liao
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Patent number: 9340442Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.Type: GrantFiled: September 18, 2015Date of Patent: May 17, 2016Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shing-Der Chen, Chen-Hua Chu, Wang-Kuan Chang, Shing Chen, Teh-Ming Liang, Shan-Shan Chou
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Publication number: 20160009584Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.Type: ApplicationFiled: September 18, 2015Publication date: January 14, 2016Inventors: Shing-Der CHEN, Chen-Hua CHU, Wang-Kuan CHANG, Shing CHEN, Teh-Ming LIANG, Shan-Shan CHOU
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Patent number: 9169135Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.Type: GrantFiled: December 21, 2010Date of Patent: October 27, 2015Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shing Der Chen, Chen Hua Chu, Wang Kuan Chang, Shing Chen, Teh Ming Liang, Shan Shan Chou
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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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Publication number: 20120055884Abstract: A method and an apparatus for hydrolyzing an organic solid are described. The method includes mixing an organic solid and a nanobubble water having a plurality of nanobubbles, to form an organic liquid, in which the nanobubbles contain a combustible gas; and applying an ultrasonic wave on the organic liquid, such that the nanobubbles generate an additional cavitation effect. A preprocessor is applicable to an organic solid processing system having an anaerobic digestion tank, in which the anaerobic digestion tank has anaerobic microbes for generating a combustible gas. The preprocessor includes a nanobubble water generator, a digestion tank, and an ultrasonic wave generator. With the method and the structure, the nanobubbles are used to increase the probability of generation of the additional cavitation effect, and the combustible gas is used to improve an impact force of bursts produced by the cavitation effect.Type: ApplicationFiled: December 21, 2010Publication date: March 8, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shing Der Chen, Chen Hua Chu, Wang Kuan Chang, Shing Chen, Teh Ming Liang, Shan Shan Chou
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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: 20100089829Abstract: A membrane cleaning apparatus comprising two electrode plates and a filtration unit is provided, wherein the filtration unit is disposed between the electrode plates. The filtration unit comprises a supporting plate and a membrane, and the membrane is disposed on the support plate. This invention can effectively clean the fouling on the membrane by applying an electric field in the membrane region and performing a back flushing process on the membrane. Moreover, a membrane cleaning method is also provided.Type: ApplicationFiled: July 18, 2009Publication date: April 15, 2010Applicant: Industrial Technology Research InstituteInventors: Chien-Hung Chen, Chen-Hua Chu, Wang-Kuan Chang, Shan-Shan Chou
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Patent number: 7288197Abstract: The present invention discloses a biological membrane filtration wastewater treatment system including a porous biological filtration bed zone and a membrane separation zone. The porous biological filtration bed zone has the dual function of providing biological treatment and higher filtration rates, wherein a fixed bed or moving bed is utilized so that the porous biological filtration bed zone has the advantages of high loading rates, high removal efficiencies, high stability and ease of operation. The membrane separation zone utilizes a membrane filtration module to filter an effluent from the porous biological filtration bed zone, so that solid particles therein are separated and remain in the system. Therefore, a high quality of effluent is obtained.Type: GrantFiled: April 4, 2005Date of Patent: October 30, 2007Assignee: Industrial Technology Research InstituteInventors: Hsin Shao, Wang-Kuan Chang, Ren-Yang Horng, Ming-Jing Perng, Ming-Chao Chang, Wen-Yuang Tzou, Yih-Chang Chen
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Patent number: 7160442Abstract: The apparatus for reducing biological wasted sludge includes a sludge hydrolysis reactor, a sludge neutralization reactor and a membrane bioreactor (MBR). The method of the present invention includes subjecting a biological wasted sludge to hydrolysis and neutralization treatments to offer an intermediate feed suitable to be treated in the MBR. The hydrolyzed sludge and microorganisms are retained in the MBR, so that a further hydrolysis of sludge and decomposition of organics undergo to achieve the objectives of stabilization of sludge and reduction of sludge. Thanks to the filtration membrane of the MBR, specific microorganisms can be acclimated and accumulated in the MBR to decompose substrates in the sludge which are difficult to be decomposed, and an effluent of expected water quality can be meet.Type: GrantFiled: February 5, 2004Date of Patent: January 9, 2007Assignee: Industrial Technology Research InstituteInventors: Ren-Yang Horng, Wen-Yuang Tzou, Wang-Kuan Chang, Min-Chao Chang, Hsin Shao
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Publication number: 20060131230Abstract: The present invention discloses a biological membrane filtration wastewater treatment system including a porous biological filtration bed zone and a membrane separation zone. The porous biological filtration bed zone has the dual function of providing biological treatment and higher filtration rates, wherein a fixed bed or moving bed is utilized so that the porous biological filtration bed zone has the advantages of high loading rates, high removal efficiencies, high stability and ease of operation. The membrane separation zone utilizes a membrane filtration module to filter an effluent from the porous biological filtration bed zone, so that solid particles therein are separated and remain in the system. Therefore, a high quality of effluent is obtained.Type: ApplicationFiled: April 4, 2005Publication date: June 22, 2006Applicant: Industrial Technology Research InstituteInventors: Hsin Shao, Wang-Kuan Chang, Ren-Yang Horng, Ming-Jing Perng, Min-Chao Chang, Wen-Yuang Tzou, Yih-Chang Chen
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Patent number: 7045066Abstract: A method of removing arsenic from water by using a reactor that is provided with a fluidized bed of carriers is disclosed. An arsenic-containing influent is mixed in the reactor with a sulfide aqueous solution or metallic salt aqueous solution at a predetermined pH, thereby resulting in formation of crystals of arsenic sulfides or arsenic acid metal salts. The arsenic contained in the influent is thus removed by crystallization. An effluent with a reduced arsenic content is discharged from the reactor. The carriers, on which the crystals are formed, are periodically removed from the reactor which is replenished with fresh carriers immediately after.Type: GrantFiled: December 19, 2003Date of Patent: May 16, 2006Assignee: Industrial Technology Research InstituteInventors: Mao-Sung Lee, Wang-Kuan Chang, Chihpin Huang, Shih-Ming Yen
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Patent number: 6982037Abstract: Method of waste water/water treatment in a submerged membrane bioreactor is disclosed. The bioreactor includes a tank containing a mixed liquor having microorganism; porous carriers in the mixed liquors; and a filtration module immersed in the mixed liquor and having a permeate side into which fluid can flow only through the filtration module. The method includes introducing an influent into the tank; applying a negative pressure source to the permeate side so that liquid in the tank penetrates the filtration module into the permeate side and flows out from the tank; and aerating the mixed liquor in the tank so that the porous carriers keep contact with the filtration module, and thus reduce fouling of the filtration module.Type: GrantFiled: April 28, 2003Date of Patent: January 3, 2006Assignee: Industrial Technology Research InstituteInventors: Ren-Yang Horng, Wang-Kuan Chang, Hsin Shao, Min-Chao Chang
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Patent number: 6855255Abstract: A method of wastewater/water treatment includes introducing an influent into a reactor so that a portion of contaminants in the influent is decomposed by microorganism in the reactor during a retention time of the influent in the reactor, and thus an effluent has a less amount of contaminants in comparison with the influent. The microorganism is grown fixedly on modified porous carriers in the reactor. The modified porous carrier contains a polymer foam and adsorbent particles entrapped in pores of the polymer foam, so that the modified foam not only has a large specific surface area, but also characteristics such as water affinity or an affinity to a certain type of contaminants. As a result, the efficiency of reducing contamination in the influent water is enhanced.Type: GrantFiled: January 28, 2003Date of Patent: February 15, 2005Assignee: Industrial Technology Research InstituteInventors: Ren-Yang Horng, Wang-Kuan Chang, Min-Chao Chang, Wen-Yuang Tzou, Ming-Jing Peng
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Publication number: 20050023202Abstract: The apparatus for reducing biological wasted sludge includes a sludge hydrolysis reactor, a sludge neutralization reactor and a membrane bioreactor (MBR). The method of the present invention includes subjecting a biological wasted sludge to hydrolysis and neutralization treatments to offer an intermediate feed suitable to be treated in the MBR. The hydrolyzed sludge and microorganisms are retained in the MBR, so that a further hydrolysis of sludge and decomposition of organics undergo to achieve the objectives of stabilization of sludge and reduction of sludge. Thanks to the filtration membrane of the MBR, specific microorganisms can be acclimated and accumulated in the MBR to decompose substrates in the sludge which are difficult to be decomposed, and an effluent of expected water quality can be meet.Type: ApplicationFiled: February 5, 2004Publication date: February 3, 2005Applicant: Industrial Technology Research InstituteInventors: Ren-Yang Horng, Wen-Yuang Tzou, Wang-Kuan Chang, Min-Chao Chang, Hsin Shao
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Publication number: 20040222162Abstract: A method of removing arsenic from water by using a reactor that is provided with a fluidized bed of carriers is disclosed. An arsenic-containing influent is mixed in the reactor with a sulfide aqueous solution or metallic salt aqueous solution at a predetermined pH, thereby resulting in formation of crystals of arsenic sulfides or arsenic acid metal salts. The arsenic contained in the influent is thus removed by crystallization. An effluent with a reduced arsenic content is discharged from the reactor. The carriers, on which the crystals are formed, are periodically removed from the reactor which is replenished with fresh carriers immediately after.Type: ApplicationFiled: December 19, 2003Publication date: November 11, 2004Applicant: Industrial Technology Research InstituteInventors: Mao-Sung Lee, Wang-Kuan Chang, Chihpin Huang, Shih-Ming Yen
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Patent number: 6808628Abstract: A submerged membrane bioreactor includes a tank containing a mixed liquor having microorganism; and a filtration module immersed in the mixed liquor and having a permeate side in fluid communication with the mixed liquor only through the filtration module. The filtration module includes a porous support having a first surface forming the permeate side and a second surface opposing to the first surface; and a non-woven fabric membrane covering the second surface and having a thickness of 0.1-2 mm and a pore size of 0.2-100 &mgr;m.Type: GrantFiled: April 10, 2002Date of Patent: October 26, 2004Assignee: Industrial Technology Research InstituteInventors: Wang-Kuan Chang, Min-Chao Chang, Ren-Yang Horng, Hsin Shao
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Publication number: 20040144720Abstract: A method of wastewater/water treatment includes introducing an influent into a reactor so that a portion of contaminants in the influent is decomposed by microorganism in the reactor during a retention time of the influent in the reactor, and thus an effluent has a less amount of contaminants in comparison with the influent. The microorganism is grown fixedly on modified porous carriers in the reactor. The modified porous carrier contains a polymer foam and adsorbent particles entrapped in pores of the polymer foam, so that the modified foam not only has a large specific surface area, but also characteristics such as water affinity or an affinity to a certain type of contaminants. As a result, the efficiency of reducing contamination in the influent water is enhanced.Type: ApplicationFiled: January 28, 2003Publication date: July 29, 2004Applicant: Industrial Technology Research InstituteInventors: Ren-Yang Horing, Wang-Kuan Chang, Min-Chao Chang, Wen-Yuang Tzou, Ming-Jing Peng
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Publication number: 20040079701Abstract: Method of waste water/water treatment in a submerged membrane bioreactor is disclosed. The bioreactor includes a tank containing a mixed liquor having microorganism; porous carriers in the mixed liquors; and a filtration module immersed in the mixed liquor and having a permeate side into which fluid can flow only through the filtration module. The method includes introducing an influent into the tank; applying a negative pressure source to the permeate side so that liquid in the tank penetrates the filtration module into the permeate side and flows out from the tank; and aerating the mixed liquor in the tank so that the porous carriers keep contact with the filtration module, and thus reduce fouling of the filtration module.Type: ApplicationFiled: April 28, 2003Publication date: April 29, 2004Applicant: Industrial Technology Research InstituteInventors: Ren-Yang Horng, Wang-Kuan Chang, Hsin Shao, Min-Chao Chang