公开(公告)号：US20240174535A1

公开(公告)日：2024-05-30

申请号：US18331396

申请日：2023-06-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo CHOI ,  Kyung-Won JUNG ,  Jee Hye BYUN ,  Youngkyun JUNG ,  Boram YANG

IPC: C02F1/52 ,  C01C3/12 ,  C02F1/30

CPC classification number: C02F1/5236 ,  C01C3/12 ,  C02F1/30 ,  C02F2101/38

Abstract: The present disclosure relates to a Prussian blue-based coagulant and a microplastic coagulation method using the same, which may effectively coagulate microplastics having a size of less than 20 μm or nanoplastics and implement an environmentally harmless coagulation process, and the Prussian blue-based coagulant according to the present disclosure refers to Prussian blue being used as a coagulant for microplastics present in a water-system environment.

公开(公告)号：US20200325043A1

公开(公告)日：2020-10-15

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

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：US20180086653A1

公开(公告)日：2018-03-29

申请号：US15377319

申请日：2016-12-13

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chan Hyuk PARK ,  Yeong Mi JEONG ,  Sang Hyup LEE ,  Jae Woo CHOI ,  Yong Su CHOI

IPC: C02F3/28 ,  C02F3/06 ,  C02F1/20 ,  C02F3/12 ,  C02F3/20 ,  B01D71/02

CPC classification number: C02F3/2853 ,  B01D61/14 ,  B01D67/0041 ,  B01D69/02 ,  B01D69/046 ,  B01D71/025 ,  B01D71/027 ,  B01D2311/263 ,  B01D2315/06 ,  B01D2323/12 ,  B01D2325/24 ,  C02F1/20 ,  C02F3/06 ,  C02F3/1273 ,  C02F3/201 ,  C02F3/2893 ,  C02F2101/16 ,  C02F2101/32 ,  C02F2209/03 ,  C02F2209/04 ,  C02F2209/06 ,  C02F2209/22 ,  C02F2209/42 ,  Y02E50/343 ,  Y02W10/15

Abstract: The present invention relates to water treatment process using pyrophylite ceramic membrane which purifies contaminant from wastewater by applying the pyrophylite ceramic membrane with immersion type, more particularly, in the water treatment process using the pyrophylite ceramic membrane including pyrophylite with 80 weight and alumina with 20 weight, characterized that comprises a S-1 step which pyrophylite ceramic membrane 10 is embedded and raw water is supplied to a reactor 100 blocked from outside, a S-2 step which obtains permenate water by operating suction pump 130 connected with the pyrophylite ceramic membrane 10, a S-3 step which recovers gas generated from the reactor 100 and a S-4 step which circulates part of gas generated from the reactor 100 to the reactor 100.

公开(公告)号：US20230339782A1

公开(公告)日：2023-10-26

申请号：US18064736

申请日：2022-12-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo CHOI ,  Kyung-Won JUNG ,  Youngkyun JUNG

IPC: C02F1/28 ,  C02F1/62

CPC classification number: C02F1/285 ,  C02F1/62 ,  C02F2101/20

Abstract: The present disclosure relates to a self-regenerable fibrous adsorbent for heavy metal adsorption, which is capable of adsorbing heavy metal ions in water, growing them into crystals and desorbing the grown heavy metal crystals on its own, and a method for preparing the same. The self-regenerable fibrous adsorbent for heavy metal adsorption according to the present disclosure is a fibrous polymer consisting of PAN and PMMA, wherein amine functional groups are immobilized on the surface of the PAN and hydroxyl groups (—OH) are immobilized on the surface of the PMMA.

公开(公告)号：US20200207649A1

公开(公告)日：2020-07-02

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 ,  E03B3/34 ,  C02F1/00 ,  C02F3/34

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：US20170007984A1

公开(公告)日：2017-01-12

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: B01J20/34 ,  B01J20/24 ,  C02F3/34 ,  B01J20/28 ,  C02F1/28 ,  B01J20/20 ,  B01J20/30

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：US20150367278A1

公开(公告)日：2015-12-24

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.

Abstract translation: 公开了一种用于回收目标气体的装置和方法，其可以通过使用单个气体分离膜组件和多个储气罐来增加回收气体中的目标气体浓度。 用于回收目标气体的装置包括：气体分离膜组件，其被配置为进行n次（n为自然数）的富集处理，使得在每个浓缩过程中将注入的气体分离成渗透气体和回收气体，和 n + 1）个储气罐，其中在第n次浓缩过程中，储存在第n个储气罐中的气体被供给到气体分离膜组件并分离成第n个渗透气体和第n个回收气体，第n个渗透气体 存储在第（n-1）个储气罐中，第n个回收气体储存在第（n + 1）个储气罐中。