Title:
COTTON ADSORBENT FOR REMOVING HARMFUL CYANOBACTERIA THAT CAUSE ALGAL BLOOM
Document Type and Number:
WIPO Patent Application WO/2023/080745
Kind Code:
A1
Abstract:
The present invention relates to a cotton adsorbent for removing cyanobacteria, which is surface-modified with a cationic polymer and a method for removing algal bloom by using same. The cotton adsorbent of the present invention uses cotton, which is a natural material, thus being environmentally friendly, and contains a large amount of amine groups through modification of the surface of a cotton material with polyethyleneimine, which is a cationic polymer, and thus can effectively adsorb negatively charged harmful cyanobacteria cells. In particular, the cotton adsorbent which is surface-modified with a cationic polymer, according to the present invention, has no ecotoxicity, and thus has the advantage of minimizing various adverse effects such as toxicity on the aquatic ecosystem according to actual use.
Inventors:
CHOI YOON E (KR)
PARK YUN HWAN (KR)
KIM SOK (KR)
PARK YUN HWAN (KR)
KIM SOK (KR)
Application Number:
PCT/KR2022/017349
Publication Date:
May 11, 2023
Filing Date:
November 07, 2022
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
B01J20/24; B01J20/28; B01J20/30; C02F1/28; C02F1/40
Foreign References:
| JP2017142000A | 2017-08-17 |
Other References:
KIM SOK; JEON MIN SEO; KIM JEE YOUNG; SIM SANG JUN; CHOI JONG-SOON; KWON JOSEPH; CHOI YOON-E: "Adsorptive removal of harmful algal speciesMicrocystis aeruginosadirectly from aqueous solution using polyethylenimine coated polysulfone-biomass composite fiber", BIODEGRADATION., KLUWER ACADEMIC PUBLISHERS., NL, vol. 29, no. 4, 25 June 2018 (2018-06-25), NL , pages 349 - 358, XP036544760, ISSN: 0923-9820, DOI: 10.1007/s10532-018-9840-2
BAI HONGJUAN; CHEN JUNHANG; ZHOU XIANGYU; HU CHENGZHI: "Single and binary adsorption of dyes from aqueous solutions using functionalized microcrystalline cellulose from cotton fiber", KOREAN JOURNAL OF CHEMICAL ENGINEERING, SPRINGER US, NEW YORK, vol. 37, no. 11, 1 January 1900 (1900-01-01), New York, pages 1926 - 1932, XP037305874, ISSN: 0256-1115, DOI: 10.1007/s11814-020-0621-3
KIM HO SEON; PARK YUN HWAN; NAM KWIWOONG; KIM SOK; CHOI YOON-E: "Amination of cotton fiber using polyethyleneimine and its application as an adsorbent to directly remove a harmful cyanobacterial species, Microcystis aeruginosa, from an aqueous medium", ENVIRONMENTAL RESEARCH., ACADEMIC PRESS, SAN DIEGO, CA., US, vol. 197, 29 April 2021 (2021-04-29), US , XP086597275, ISSN: 0013-9351, DOI: 10.1016/j.envres.2021.111235
PARK YUN HWAN, KIM HO SEON, KIM HYUNSOO, PARK JAEWON, KIM SOK, CHOI YOON-E.: "Direct removal of harmful cyanobacterial species by adsorption process and their potential use as a lipid source", CHEMICAL ENGENEERING JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 427, 1 January 2022 (2022-01-01), AMSTERDAM, NL , pages 131727, XP093062875, ISSN: 1385-8947, DOI: 10.1016/j.cej.2021.131727
BAI HONGJUAN; CHEN JUNHANG; ZHOU XIANGYU; HU CHENGZHI: "Single and binary adsorption of dyes from aqueous solutions using functionalized microcrystalline cellulose from cotton fiber", KOREAN JOURNAL OF CHEMICAL ENGINEERING, SPRINGER US, NEW YORK, vol. 37, no. 11, 1 January 1900 (1900-01-01), New York, pages 1926 - 1932, XP037305874, ISSN: 0256-1115, DOI: 10.1007/s11814-020-0621-3
KIM HO SEON; PARK YUN HWAN; NAM KWIWOONG; KIM SOK; CHOI YOON-E: "Amination of cotton fiber using polyethyleneimine and its application as an adsorbent to directly remove a harmful cyanobacterial species, Microcystis aeruginosa, from an aqueous medium", ENVIRONMENTAL RESEARCH., ACADEMIC PRESS, SAN DIEGO, CA., US, vol. 197, 29 April 2021 (2021-04-29), US , XP086597275, ISSN: 0013-9351, DOI: 10.1016/j.envres.2021.111235
PARK YUN HWAN, KIM HO SEON, KIM HYUNSOO, PARK JAEWON, KIM SOK, CHOI YOON-E.: "Direct removal of harmful cyanobacterial species by adsorption process and their potential use as a lipid source", CHEMICAL ENGENEERING JOURNAL, ELSEVIER, AMSTERDAM, NL, vol. 427, 1 January 2022 (2022-01-01), AMSTERDAM, NL , pages 131727, XP093062875, ISSN: 1385-8947, DOI: 10.1016/j.cej.2021.131727
Attorney, Agent or Firm:
NAM & NAM (KR)
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