Patents by Inventor Yang Oh JIN
Yang Oh JIN 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: 11307134Abstract: A device for measuring the membrane fouling index which can measure the modified fouling index (MFI) and the silt density index (SDI) at the same time and quantify the degree of membrane fouling caused by various kinds of membrane fouling materials, such as particulate materials, colloids, organic matters, and so on, in a short period of time.Type: GrantFiled: February 26, 2020Date of Patent: April 19, 2022Assignee: Doosan Heavy Industries & Construction Co., LtdInventors: Jong Hyuk Moon, Yang Oh Jin, Hyun Sung Choi, Sung Hoon Kim
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Patent number: 11180392Abstract: Disclosed is a sequencing batch reactor (SBR) for sewage treatment. The SBR is applicable to an energy-producing sewage treatment system. The SBR includes a treatment tank and a hybrid bacterial strain screening tank. The treatment tank removes ammonium contained in supernatant liquid using anaerobic ammonium-oxidizing (anammox) bacteria. The hybrid bacterial strain screening tank screen anammox bacteria granules out by passing the supernatant liquid discharged from the treatment tank through the hybrid bacterial strain screening tank. The SBR generates biogas using the anammox bacteria and reduces the nitrogen content in the supernatant liquid. The SBR can separate the anammox bacteria granules with high separation efficiency, thereby shortening sewage treatment time and recycling activated sludge, resulting in a dramatic decrease in the amount of waste sludge.Type: GrantFiled: March 9, 2020Date of Patent: November 23, 2021Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO. LTD.Inventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Patent number: 11180393Abstract: An anammox reactor capable of improving nitrogen removal efficiency by maintaining activity of microorganisms, and a water treatment method using the anammox reactor are provided. The anammox reactor includes a raw water feed pipe through which raw water is supplied, a raw water discharge pipe through which raw water is discharged to an outside, and a first chamber configured to accommodate ammonium oxidizing bacteria (AOB) and anammox bacteria for performing an anammox process, wherein the raw water feed pipe and the raw water discharge pipe are configured to communicate with the first chamber.Type: GrantFiled: August 2, 2019Date of Patent: November 23, 2021Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CInventors: Hwan Chul Cho, Chul Woo Lee, Su Nam You, Yang Oh Jin
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Patent number: 11001517Abstract: Disclosed is a bioreactor for treating sewage comprising an aerobic tank including a mixing cell for receiving sewage to be supplied from an inlet and mixing the sewage with activated sludge and an aerobic reactor tank in which the activated sludge adsorbs organic substance existing in the sewage; a backwashing cartridge filter for removing floc resulting from growth of the activated sludge adsorbing the organic substance; and an anaerobic tank for carrying out a denitrification process for denitrifying treated water flowed through the backwashing cartridge filter using anaerobic ammonium oxidation (anammox) bacteria wherein the backwashing cartridge filter allows the sewage discharged from the aerobic tank to pass through the cartridge filter and separates the floc and the treated water using difference in size between the floc contained in the sewage and pores in the cartridge filter, and wherein foreign matter adsorbed on the cartridge filter is easily removed by means of washing water to be injected intoType: GrantFiled: November 5, 2019Date of Patent: May 11, 2021Assignee: Doosan Heavy Industries Construction Co., LtdInventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Patent number: 10927024Abstract: A water treatment apparatus for removing nitrogen in raw water and a water treatment method using the same are provided. The water treatment apparatus includes a denitrification reactor configured to remove nitrogen contained in raw water supplied thereto, a phosphorus treatment tank configured to remove phosphorus (P) contained in the raw water supplied from the denitrification reactor, an anammox reactor configured to remove nitrogen contained in the raw water supplied from the phosphorus treatment tank through an anammox reaction, a partial nitritation tank configured to convert ammonium ions (NH4+) remaining untreated in the anammox reaction into nitrite ions (NO2?), and a sedimentation tank configured to cause settling of suspended matter contained in the raw water supplied from the partial nitritation tank so that sludge forms and discharge the raw water through a raw water discharge pipe.Type: GrantFiled: August 30, 2019Date of Patent: February 23, 2021Assignee: Doosan Heavy Industries Construction Co., LtdInventors: Seong Ju Kim, Su Nam You, Yang Oh Jin
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Publication number: 20200207650Abstract: Disclosed is a sequencing batch reactor (SBR) for sewage treatment. The SBR is applicable to an energy-producing sewage treatment system. The SBR includes a treatment tank and a hybrid bacterial strain screening tank. The treatment tank removes ammonium contained in supernatant liquid using anaerobic ammonium-oxidizing (anammox) bacteria. The hybrid bacterial strain screening tank screen anammox bacteria granules out by passing the supernatant liquid discharged from the treatment tank through the hybrid bacterial strain screening tank. The SBR generates biogas using the anammox bacteria and reduces the nitrogen content in the supernatant liquid. The SBR can separate the anammox bacteria granules with high separation efficiency, thereby shortening sewage treatment time and recycling activated sludge, resulting in a dramatic decrease in the amount of waste sludge.Type: ApplicationFiled: March 9, 2020Publication date: July 2, 2020Inventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Publication number: 20200191703Abstract: A device for measuring the membrane fouling index which can measure the modified fouling index (MFI) and the silt density index (SDI) at the same time and quantify the degree of membrane fouling caused by various kinds of membrane fouling materials, such as particulate materials, colloids, organic matters, and so on, in a short period of time.Type: ApplicationFiled: February 26, 2020Publication date: June 18, 2020Inventors: Jong Hyuk MOON, Yang Oh JIN, Hyun Sung CHOI, Sung Hoon KIM
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Patent number: 10626035Abstract: Disclosed is a sequencing batch reactor (SBR) for sewage treatment. The SBR is applicable to an energy-producing sewage treatment system. The SBR includes a treatment tank and a hybrid bacterial strain screening tank. The treatment tank removes ammonium contained in supernatant liquid using anaerobic ammonium-oxidizing (anammox) bacteria. The hybrid bacterial strain screening tank screen anammox bacteria granules out by passing the supernatant liquid discharged from the treatment tank through the hybrid bacterial strain screening tank. The SBR generates biogas using the anammox bacteria and reduces the nitrogen content in the supernatant liquid. The SBR can separate the anammox bacteria granules with high separation efficiency, thereby shortening sewage treatment time and recycling activated sludge, resulting in a dramatic decrease in the amount of waste sludge.Type: GrantFiled: April 13, 2018Date of Patent: April 21, 2020Assignee: Doosan Heavy Industries Construction Co., LtdInventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Patent number: 10613018Abstract: A device for measuring the membrane fouling index which can measure the modified fouling index (MFI) and the silt density index (SDI) at the same time and quantify the degree of membrane fouling caused by various kinds of membrane fouling materials, such as particulate materials, colloids, organic matters, and so on, in a short period of time.Type: GrantFiled: November 24, 2015Date of Patent: April 7, 2020Assignee: Doosan Heavy Industries Construction Co., LtdInventors: Jong Hyuk Moon, Yang Oh Jin, Hyun Sung Choi, Sung Hoon Kim
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Publication number: 20200079669Abstract: A water treatment apparatus for removing nitrogen in raw water and a water treatment method using the same are provided. The water treatment apparatus includes a denitrification reactor configured to remove nitrogen contained in raw water supplied thereto, a phosphorus treatment tank configured to remove phosphorus (P) contained in the raw water supplied from the denitrification reactor, an anammox reactor configured to remove nitrogen contained in the raw water supplied from the phosphorus treatment tank through an anammox reaction, a partial nitritation tank configured to convert ammonium ions (NH4+) remaining untreated in the anammox reaction into nitrite ions (NO2?), and a sedimentation tank configured to cause settling of suspended matter contained in the raw water supplied from the partial nitritation tank so that sludge forms and discharge the raw water through a raw water discharge pipe.Type: ApplicationFiled: August 30, 2019Publication date: March 12, 2020Inventors: Seong Ju KIM, Su Nam YOU, Yang Oh JIN
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Publication number: 20200079668Abstract: An anammox reactor capable of improving nitrogen removal efficiency by maintaining activity of microorganisms, and a water treatment method using the anammox reactor are provided. The anammox reactor includes a raw water feed pipe through which raw water is supplied, a raw water discharge pipe through which raw water is discharged to an outside, and a first chamber configured to accommodate ammonium oxidizing bacteria (AOB) and anammox bacteria for performing an anammox process, wherein the raw water feed pipe and the raw water discharge pipe are configured to communicate with the first chamber.Type: ApplicationFiled: August 2, 2019Publication date: March 12, 2020Inventors: Hwan Chul Cho, Chul Woo Lee, Su Nam You, Yang Oh Jin
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Publication number: 20200062628Abstract: Disclosed is a bioreactor for treating sewage comprising an aerobic tank including a mixing cell for receiving sewage to be supplied from an inlet and mixing the sewage with activated sludge and an aerobic reactor tank in which the activated sludge adsorbs organic substance existing in the sewage; a backwashing cartridge filter for removing floc resulting from growth of the activated sludge adsorbing the organic substance; and an anaerobic tank for carrying out a denitrification process for denitrifying treated water flowed through the backwashing cartridge filter using anaerobic ammonium oxidation (anammox) bacteria wherein the backwashing cartridge filter allows the sewage discharged from the aerobic tank to pass through the cartridge filter and separates the floc and the treated water using difference in size between the floc contained in the sewage and pores in the cartridge filter, and wherein foreign matter adsorbed on the cartridge filter is easily removed by means of washing water to be injected intoType: ApplicationFiled: November 5, 2019Publication date: February 27, 2020Inventors: Hwan Chul CHO, Seong Ju KIM, Yang Oh JIN, Chul Woo LEE
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Patent number: 10494282Abstract: Disclosed is a bioreactor for treating sewage comprising an aerobic tank including a mixing cell for receiving sewage to be supplied from an inlet and mixing the sewage with activated sludge and an aerobic reactor tank in which the activated sludge adsorbs organic substance existing in the sewage; a backwashing cartridge filter for removing floc resulting from growth of the activated sludge adsorbing the organic substance; and an anaerobic tank for carrying out a denitrification process for denitrifying treated water flowed through the backwashing cartridge filter using anaerobic ammonium oxidation (anammox) bacteria wherein the backwashing cartridge filter allows the sewage discharged from the aerobic tank to pass through the cartridge filter and separates the floc and the treated water using difference in size between the floc contained in the sewage and pores in the cartridge filter, and wherein foreign matter adsorbed on the cartridge filter is easily removed by means of washing water to be injected intoType: GrantFiled: April 13, 2018Date of Patent: December 3, 2019Assignee: Doosan Heavy Industries Construction Co., LtdInventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Publication number: 20190315643Abstract: A method for biologically treating nitrogen while minimizing energy and carbon source usage uses an aerobic tank, a first anoxic tank, and a second anoxic tank. The method includes introducing feed water by dividedly introducing the feed water to the aerobic tank and the first anoxic tank; converting ammonia nitrogen into nitrate nitrogen in the aerobic tank; converting the nitrate nitrogen into nitrite nitrogen through partial denitrification in the first anoxic tank using organic material contained in the feed water; and converting the nitrite nitrogen and ammonia into nitrogen gas in the second anoxic tank using an anammox microorganism. The ammonia nitrogen is converted by determining aeration intensity, aeration time, and/or aeration amount depending on an ammonia concentration in the aerobic tank. The nitrate nitrogen is converted by determining a reaction time of the first anoxic tank based on nitrate and nitrite concentrations in the first anoxic tank.Type: ApplicationFiled: March 1, 2019Publication date: October 17, 2019Inventors: Seong Ju Kim, Hwan Chul Cho, Yang Oh Jin
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Publication number: 20190119135Abstract: The system relates to a disk filter for effectively preventing scale formation in a water treatment process, and to a water treatment apparatus and method using the same. The disk filter includes a housing having a cylindrical shape, a raw water inlet formed at a predetermined position on the side surface of the housing, a raw water outlet formed at a central region in the bottom of the housing, a backwash water outlet formed at a central region in the top of the housing, a ceramic filter provided in a circular disk shape inside the housing, and a scale formation inhibitor loaded in a flow channel formed inside the ceramic filter, wherein raw water introduced via the raw water inlet passes through the ceramic filter and then through the flow channel filled with the scale formation inhibitor, and is then discharged via the raw water outlet.Type: ApplicationFiled: October 19, 2018Publication date: April 25, 2019Applicant: Doosan Heavy Industries & Construction Co., LTDInventors: Seong Ju Kim, Hwan Chul Cho, Yang Oh Jin
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Publication number: 20180297879Abstract: Disclosed is a bioreactor for treating sewage comprising an aerobic tank including a mixing cell for receiving sewage to be supplied from an inlet and mixing the sewage with activated sludge and an aerobic reactor tank in which the activated sludge adsorbs organic substance existing in the sewage; a backwashing cartridge filter for removing floc resulting from growth of the activated sludge adsorbing the organic substance; and an anaerobic tank for carrying out a denitrification process for denitrifying treated water flowed through the backwashing cartridge filter using anaerobic ammonium oxidation (anammox) bacteria wherein the backwashing cartridge filter allows the sewage discharged from the aerobic tank to pass through the cartridge filter and separates the floc and the treated water using difference in size between the floc contained in the sewage and pores in the cartridge filter, and wherein foreign matter adsorbed on the cartridge filter is easily removed by means of washing water to be injected intoType: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Inventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Publication number: 20180297875Abstract: Disclosed is a sequencing batch reactor (SBR) for sewage treatment. The SBR is applicable to an energy-producing sewage treatment system. The SBR includes a treatment tank and a hybrid bacterial strain screening tank. The treatment tank removes ammonium contained in supernatant liquid using anaerobic ammonium-oxidizing (anammox) bacteria. The hybrid bacterial strain screening tank screen anammox bacteria granules out by passing the supernatant liquid discharged from the treatment tank through the hybrid bacterial strain screening tank. The SBR generates biogas using the anammox bacteria and reduces the nitrogen content in the supernatant liquid. The SBR can separate the anammox bacteria granules with high separation efficiency, thereby shortening sewage treatment time and recycling activated sludge, resulting in a dramatic decrease in the amount of waste sludge.Type: ApplicationFiled: April 13, 2018Publication date: October 18, 2018Inventors: Hwan Chul Cho, Seong Ju Kim, Yang Oh Jin, Chul Woo Lee
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Publication number: 20160238513Abstract: A device for measuring the membrane fouling index which can measure the modified fouling index (MFI) and the silt density index (SDI) at the same time and quantify the degree of membrane fouling caused by various kinds of membrane fouling materials, such as particulate materials, colloids, organic matters, and so on, in a short period of time.Type: ApplicationFiled: November 24, 2015Publication date: August 18, 2016Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.Inventors: Jong Hyuk MOON, Yang Oh JIN, Hyun Sung CHOI, Sung Hoon KIM