Patents by Inventor Yung-Pin Tsai
Yung-Pin Tsai 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: 20220010059Abstract: A polyhydroxyalkanoates extraction system comprises a pretreatment subsystem, an extraction subsystem and a recycling subsystem. The pretreatment subsystem comprises a fermentation device and an activation device so as to carry out a microorganism acclimation process. The extraction subsystem comprises a freezing device, a pretreatment device and an extraction device. The extraction subsystem is used for receiving a third sludge so that the third sludge is subjected to a freezing process, a pretreatment process, an extraction process and a purification process in the freezing device to form a polyhydroxyalkanoates mixture, and the extraction device performs a precipitation process to generate polyhydroxyalkanoates precipitate. The recycling subsystem comprises an aerobic sludge digestion device and a sequencing batch reactor activated sludge treatment device so as to carry out an aerobic sludge digestion process and a sequencing batch reactor activated sludge process.Type: ApplicationFiled: September 21, 2020Publication date: January 13, 2022Inventors: Yung-Pin TSAI, Ku-Fan CHEN, Meng-Shan LU, Chih-Chi YANG, Hao SHIU
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Patent number: 10745723Abstract: The present invention relates to a method for increasing polyhydroxyalkanoates (PHAs) content of waste sludge, by taking the fermentation liquid fermented from waste sludge as a carbon source, and performing ADF domestication process, thereby quickly raising PHAs contentin the waste sludge, in accordance with the method of the present invention, the conventional complicated domestication steps is simplified and a higher content PHAs can be produced, additionally the added carbon source of the present invention is the VFA fermented by the waste sludge, so it's unnecessary to add extra material, therefore including more industrial utilization.Type: GrantFiled: January 9, 2018Date of Patent: August 18, 2020Assignee: National Chi Nan UniversityInventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Hao Shiu, Jan-Wei Lin, Yu-Wei Liou
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Patent number: 10711263Abstract: The present invention provides a method for extracting polyhydroxyalkanoates (PHAs), which comprises a pre-process step and an extraction step: removing water from waste sludge containing microorganisms in the pre-process step so that the waste sludge containing microorganisms has a water content of less than 40%; and applying a high-voltage pulsed electric field to the waste sludge during the extraction step to destroy the microorganisms and release the PHAs, wherein the high-voltage pulsed electric field is between 50 volts and 400 volts, an application time of the high-voltage pulsed electric field is between 5 seconds and 90 seconds, and an application frequency of the high-voltage pulsed electric field is between 500 Hz and 1000 Hz, thereby extracting the PHAs in the case of few chemicals.Type: GrantFiled: January 11, 2018Date of Patent: July 14, 2020Assignee: NATIONAL CHI NAN UNIVERSITYInventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Hao Shiu, Jan-Wei Lin
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Publication number: 20190177753Abstract: The present invention relates to a method for increasing polyhydroxyalkanoates (PHAs) content of waste sludge, by taking the fermentation liquid fermented from waste sludge as a carbon source, and performing ADF domestication process, thereby quickly raising PHAs contentin the waste sludge, in accordance with the method of the present invention, the conventional complicated domestication steps is simplified and a higher content PHAs can be produced, additionally the added carbon source of the present invention is the VFA fermented by the waste sludge, so it's unnecessary to add extra material, therefore including more industrial utilization.Type: ApplicationFiled: January 9, 2018Publication date: June 13, 2019Inventors: Yung-Pin TSAI, Meng-Shan LU, Chih-Chi YANG, Hao SHIU, Jan-Wei LIN, Yu-Wei LIOU
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Publication number: 20190127727Abstract: The present invention provides a method for extracting polyhydroxyalkanoates (PHAs), which comprises a pre-process step and an extraction step: removing water from waste sludge containing microorganisms in the pre-process step so that the waste sludge containing microorganisms has a water content of less than 40%; and applying a high-voltage pulsed electric field to the waste sludge during the extraction step to destroy the microorganisms and release the PHAs, wherein the high-voltage pulsed electric field is between 50 volts and 400 volts, an application time of the high-voltage pulsed electric field is between 5 seconds and 90 seconds, and an application frequency of the high-voltage pulsed electric field is between 500 Hz and 1000 Hz, thereby extracting the PHAs in the case of few chemicals.Type: ApplicationFiled: January 11, 2018Publication date: May 2, 2019Inventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Hao Shiu, Jan-Wei Lin
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Publication number: 20160097107Abstract: A method for producing monosaccharides from algae includes (a) treating algae-containing water using an electrocoagulation device having an iron-based anode to induce flocculation of algae so as to obtain flocculated algae which have a trace amount of iron derived from the iron-based anode, (b) collecting the flocculated algae from the algae-containing water, and (c) subjecting the flocculated algae to an acid hydrolysis reaction in an acid solution to obtain monosaccharides. A liquid-to-solid ratio of a volume of the acid solution to a solid content of the flocculated algae is not less than 12 ml/g. The acid solution has an acid concentration not less than 3% by volume.Type: ApplicationFiled: February 23, 2015Publication date: April 7, 2016Inventors: Yung-Pin TSAI, Shou-Te CHEN, Zhi-Yuan HUANG, Jian-Hao CIOU, Jhih-Ci YANG, Meng-Shan LU, Hao SHIU
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Patent number: 8641907Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d).Type: GrantFiled: November 19, 2010Date of Patent: February 4, 2014Assignee: National Chi Nan UniversityInventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
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Patent number: 8641908Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).Type: GrantFiled: November 19, 2010Date of Patent: February 4, 2014Assignee: National Chi Nan UniversityInventors: Yung-Pin Tsai, Meng-Shan Lu, Chih-Chi Yang, Shou-Te Chen
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Publication number: 20140011674Abstract: A process of producing a titanium dioxide-based photocatalyst used for degradation of organic pollutants includes the steps of: (a) preparing a mixture solution which includes a titanium dioxide precursor and a transition metal salt having a transition metal ion which is capable of reducing a band gap of titanium dioxide; (b) aging the mixture solution so as to obtain a gel; (c) treating the gel to form an ion-doped titanium dioxide; (d) depositing silver nanoparticles on the ion-doped titanium dioxide to obtain a modified titanium dioxide-based photocatalyst; and (e) calcining the modified titanium dioxide-based photocatalyst.Type: ApplicationFiled: January 11, 2013Publication date: January 9, 2014Applicant: NATIONAL CHI NAN UNIVERSITYInventors: Yung-Pin TSAI, Ruey-An DOONG, Jhih-Ci YANG, Chih-Yu CHANG
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Publication number: 20120006758Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d).Type: ApplicationFiled: November 19, 2010Publication date: January 12, 2012Applicant: NATIONAL CHI NAN UNIVERSITYInventors: Yung-Pin TSAI, Meng-Shan LU, Chih-Chi YANG, Shou-Te CHEN
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Publication number: 20120006754Abstract: A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f).Type: ApplicationFiled: November 19, 2010Publication date: January 12, 2012Applicant: NATIONAL CHI NAN UNIVERSITYInventors: Yung-Pin TSAI, Meng-Shan LU, Chih-Chi YANG, Shou-Te CHEN
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Publication number: 20110184741Abstract: A positioning-based virtual business operation system includes a seller equipment having a positioning device for acquiring positioning information of the seller equipment and a data transmitting/receiving device for transmitting the positioning information; an operation platform having a business information interface for receiving the positioning information of the seller equipment and updating location information of the seller equipment in the business information interface; and an operator equipment for transmitting operation service information to the operation platform via a network and adjusting service information of the seller equipment or operator information in the business information interface, thereby allowing consumers, mobile sellers, operators of virtual business, and operators of portal sites to benefit from the system and thus creating an all-beneficial business running pattern.Type: ApplicationFiled: July 20, 2010Publication date: July 28, 2011Applicant: NATIONAL TAIWAN UNIVERSITYInventors: Yeong Sung Lin, Jen-Wel Chen, Pei Yu Chen, Yu Shun Wang, Yao-Yuan Chang, Shih-Chang Lin, Yi-Wei Li, Pin Hung Chen, Yung-Pin Tsai