公开(公告)号：US10745306B2

公开(公告)日：2020-08-18

申请号：US16390007

申请日：2019-04-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Pil Jeong ,  Jae Woo Choi ,  Kyungjin Cho ,  Hien Thi Nguyen ,  Youngjae Kim ,  Am Jang ,  Seunghak Lee ,  Seockheon Lee

IPC: C02F3/04 ,  E03B3/06 ,  C02F1/00 ,  C02F3/34 ,  E03B3/34

Abstract: Provided is an aquifer storage and recovery system, in which microbes extracted from an underground aquifer are involved in an assimilable organic carbon (AOC) removal mechanism and applied to an aerobic reactor, and a predetermined portion of assimilable organic carbon in raw water is removed through the aerobic reactor.

公开(公告)号：US09358522B2

公开(公告)日：2016-06-07

申请号：US13667797

申请日：2012-11-02

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seok Won Hong ,  Sang Hyup Lee ,  Jae Woo Choi ,  Seung Gun Chung

IPC: B01J20/18 ,  B01J20/28 ,  B01J20/22 ,  B01J20/285 ,  B01J20/02 ,  B01J20/24 ,  B01J20/06 ,  B01J20/30 ,  B01J20/32 ,  C02F1/28 ,  C02F101/20

CPC classification number: B01J20/28019 ,  B01J20/0229 ,  B01J20/06 ,  B01J20/18 ,  B01J20/22 ,  B01J20/223 ,  B01J20/24 ,  B01J20/2803 ,  B01J20/285 ,  B01J20/3014 ,  B01J20/3078 ,  B01J20/3085 ,  B01J20/3204 ,  B01J20/3257 ,  C02F1/281 ,  C02F1/286 ,  C02F1/288 ,  C02F2101/20

Abstract: A composite medium and method thereof for simultaneous removal of cationic and anionic heavy metals are provided to remove cationic and anionic heavy metals effectively. The method includes dissolving sodium alginate powder into deionized water to provide an alginate solution, and introducing amine group-supported mesoporous iron oxide and synthetic zeolite into the alginate solution and kneading the resultant mixture. The method also includes adding the alginate solution mixed with the mesoporous iron oxide and synthetic zeolite dropwise to an aqueous calcium chloride solution so that each drop of alginate solution is cured to form a bead-like composite medium, and vacuum drying the bead-like composite medium to remove water present in the composite medium, while the mesoporous iron oxide and synthetic zeolite are moved from the inside of the composite medium toward the surface of the composite medium.

Abstract translation: 提供用于同时去除阳离子和阴离子重金属的复合介质及其方法以有效地去除阳离子和阴离子重金属。 该方法包括将藻酸钠粉末溶解在去离子水中以提供藻酸盐溶液，并将胺基担载的介孔氧化铁和合成沸石引入到藻酸盐溶液中并捏合所得混合物。 该方法还包括将中孔氧化铁和合成沸石混合的藻酸盐溶液滴加到氯化钙水溶液中，使每一滴藻酸盐溶液固化形成珠状复合介质，真空干燥珠状复合材料 介质以除去存在于复合介质中的水，同时介孔氧化铁和合成沸石从复合介质的内部朝向复合介质的表面移动。

公开(公告)号：US11142472B2

公开(公告)日：2021-10-12

申请号：US16677679

申请日：2019-11-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Pil Jeong ,  Kyungjin Cho ,  Jae Woo Choi ,  Seok Won Hong ,  Seunghak Lee ,  Eun-Ju Kim ,  Jae Shik Chung ,  Hien Thi Nguyen ,  Youngjae Kim

IPC: C02F1/52 ,  E03B3/34 ,  C02F101/32 ,  C02F1/00

Abstract: The present invention is an aquifer storage and recovery system using a natural coagulant, in which in purifying raw water through aquifer storage and recovery, assimilable organic carbon (AOC) included in the raw water is effectively removed using a natural coagulant produced in the aquifer storage and recovery process, thereby reducing the time required to purify raw water by aquifer storage and recovery.

公开(公告)号：US09687776B2

公开(公告)日：2017-06-27

申请号：US14744181

申请日：2015-06-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sanghyup Lee ,  Soonjae Lee ,  Jae Woo Choi

IPC: B01D53/22

CPC classification number: B01D53/22 ,  B01D2053/221 ,  B01D2257/204 ,  B01D2257/30

Abstract: Disclosed is an apparatus and method for recovery of target gas, which may increase a target gas concentration in a recovered gas by using a single gas separation membrane module and a plurality of gas storage tanks. The apparatus for recovery of target gas includes a gas separation membrane module configured to perform an enrichment process n times (n is a natural number) so that an injected gas is separated into a permeated gas and a recovered gas in each enrichment process, and (n+1) number of gas storage tanks, wherein in an nth enrichment process, gas stored in an nth gas storage tank is supplied to the gas separation membrane module and separated into an nth permeated gas and an nth recovered gas, the nth permeated gas is stored in a (n−1)th gas storage tank, and the nth recovered gas is stored in a (n+1)th gas storage tank.

公开(公告)号：US09579630B2

公开(公告)日：2017-02-28

申请号：US15064939

申请日：2016-03-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo Choi ,  Soonjae Lee ,  Kyung Min Lee ,  Seulki Cho ,  Chang Gu Lee ,  Chanhyuk Park ,  Sanghyup Lee

IPC: B01J20/32 ,  B01J20/34 ,  B01J20/20 ,  B01J20/24 ,  B01J20/30 ,  B01J20/28 ,  C02F1/28 ,  C02F3/34 ,  C02F3/00 ,  C02F101/32 ,  C02F101/34

CPC classification number: B01J20/3416 ,  B01J20/20 ,  B01J20/24 ,  B01J20/28016 ,  B01J20/3085 ,  C02F1/283 ,  C02F1/286 ,  C02F1/288 ,  C02F3/348 ,  C02F2003/001 ,  C02F2003/003 ,  C02F2101/345 ,  C02F2101/36

Abstract: Provided is a bead in which an adsorbent and an organic contaminant-degrading microorganism are supported, wherein an adsorbent for adsorbing organic contaminants is supported on the bead together with an organic contaminant-degrading microorganism for degrading the organic contaminants adsorbed to the adsorbent to allow for the adsorbent to remove organic contaminants in water and to allow for the organic contaminant-degrading microorganism to regenerate the adsorbent.

Abstract translation: 提供了一种其中负载吸附剂和有机污染物降解微生物的珠粒，其中用于吸附有机污染物的吸附剂与有机污染物降解微生物一起负载在珠粒上，用于降解吸附到吸附剂上的有机污染物，以允许 吸附剂去除水中的有机污染物并允许有机污染物降解微生物再生吸附剂。

公开(公告)号：US09295974B2

公开(公告)日：2016-03-29

申请号：US13900109

申请日：2013-05-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seok Won Hong ,  Sanghyup Lee ,  Kyung Guen Song ,  Eunhoo Jeong ,  Jae Woo Choi

IPC: B01J20/26 ,  B01J20/32 ,  B01J20/34 ,  B01J20/28

CPC classification number: B01J20/3475 ,  B01J20/26 ,  B01J20/28045 ,  B01J20/3231 ,  B01J20/3257

Abstract: The present disclosure relates to a floating type adsorbent for removal of phosphate that can effectively remove phosphate from aqueous phase through reaction between an amine function attached on the surface of a sponge and phosphate. This adsorbent can be regenerated by desorbing the adsorbed phosphate, a method for fabricating same and a method for regeneration the floating type adsorbent for removal of phosphate. The floating type adsorbent for removal of phosphate according to the present disclosure is fabricated by immersing a sponge in a mixture solution of an amine precursor and anhydrous toluene to form an amine function on the surface of the sponge. The amine precursor may be 3-aminopropyltriethoxysilane (APTES) and the APTES and the anhydrous toluene may be mixed at a volume ratio of 0.5-1:1.

Abstract translation: 本公开涉及一种用于除去磷酸盐的浮选型吸附剂，其可以通过附着在海绵表面和磷酸盐之间的胺官能团的反应，从水相中有效地除去磷酸盐。 该吸附剂可以通过解吸吸附的磷酸盐，其制造方法和再生漂浮型吸附剂以除去磷酸盐的方法而再生。 根据本公开的用于去除磷酸盐的浮动型吸附剂通过将海绵浸入在胺前体和无水甲苯的混合溶液中以在海绵表面上形成胺官能团来制造。 胺前体可以是3-氨基丙基三乙氧基硅烷（APTES），APTES和无水甲苯可以以0.5-1:1的体积比混合。

公开(公告)号：US20140183405A1

公开(公告)日：2014-07-03

申请号：US13900109

申请日：2013-05-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seok Won HONG ,  Sanghyup Lee ,  Kyung Guen Song ,  Eunhoo Jeong ,  Jae Woo Choi

IPC: B01J20/34 ,  B01J20/32 ,  B01J20/26

CPC classification number: B01J20/3475 ,  B01J20/26 ,  B01J20/28045 ,  B01J20/3231 ,  B01J20/3257

Abstract: The present disclosure relates to a floating type adsorbent for removal of phosphate that can effectively remove phosphate from aqueous phase through reaction between an amine function attached on the surface of a sponge and phosphate. This adsorbent can be regenerated by desorbing the adsorbed phosphate, a method for fabricating same and a method for regeneration the floating type adsorbent for removal of phosphate. The floating type adsorbent for removal of phosphate according to the present disclosure is fabricated by immersing a sponge in a mixture solution of an amine precursor and anhydrous toluene to form an amine function on the surface of the sponge. The amine precursor may be 3-aminopropyltriethoxysilane (APTES) and the APTES and the anhydrous toluene may be mixed at a volume ratio of 0.5-1:1.

Abstract translation: 本公开涉及一种用于除去磷酸盐的浮选型吸附剂，其可以通过附着在海绵表面和磷酸盐之间的胺官能团的反应，从水相中有效地除去磷酸盐。 该吸附剂可以通过解吸吸附的磷酸盐，其制造方法和再生漂浮型吸附剂以除去磷酸盐的方法而再生。 根据本公开的用于去除磷酸盐的浮动型吸附剂通过将海绵浸入在胺前体和无水甲苯的混合溶液中以在海绵表面上形成胺官能团来制造。 胺前体可以是3-氨基丙基三乙氧基硅烷（APTES），APTES和无水甲苯可以以0.5-1:1的体积比混合。