Title:
SYSTEM FOR ZERO-DISCHARGE TREATMENT OF WASTEWATER GENERATED DURING RECYCLING PROCESS OF WASTE LITHIUM-ION BATTERIES
Document Type and Number:
WIPO Patent Application WO/2024/049075
Kind Code:
A1
Abstract:
Disclosed is a system for treating wastewater generated during a recycling process for recovering valuable metals from waste lithium-ion batteries. An aspect of the present invention provides a system for zero-discharge treatment of wastewater generated during recycling of waste lithium-ion batteries, the system comprising: a heavy metal removal unit configured to remove heavy metal components from wastewater generated during a valuable metal recovery process; an organic material oxidation unit configured to receive the wastewater, from which the heavy metal components have been removed, to remove organic materials from the wastewater; a chemical recovery unit configured to recover strong bases and strong acids from the wastewater, from which the organic materials have been removed by the organic material oxidation unit; a concentration unit configured to additionally remove salts from the wastewater, from which the strong bases and the strong acids have been recovered; and a reusable water production unit configured to filter the treatment water, from which the salts have been removed by the concentration unit, to produce reusable water.
Inventors:
KIM SANG UG (KR)
YU KEUN CHAN (KR)
PARK TAE SHIN (KR)
KIM JANGKYU (KR)
LEE CHUN WOO (US)
SHIM IN YONG (KR)
CHOI SEUNG HYUN (KR)
MOON RA KYUNG (KR)
YU KEUN CHAN (KR)
PARK TAE SHIN (KR)
KIM JANGKYU (KR)
LEE CHUN WOO (US)
SHIM IN YONG (KR)
CHOI SEUNG HYUN (KR)
MOON RA KYUNG (KR)
Application Number:
PCT/KR2023/012338
Publication Date:
March 07, 2024
Filing Date:
August 21, 2023
Export Citation:
Assignee:
BKT CO LTD (KR)
TOMORROW WATER (US)
ENERGY MAT CORP (KR)
TOMORROW WATER (US)
ENERGY MAT CORP (KR)
International Classes:
C02F9/00; B01D35/02; C02F1/24; C02F1/40; C02F1/44; C02F1/469; C02F1/58; C02F1/62; C02F1/66; C02F1/78
Foreign References:
| KR20210080078A | 2021-06-30 | |||
| JP2003236584A | 2003-08-26 | |||
| KR102169490B1 | 2020-10-26 | |||
| JPH0818025B2 | 1996-02-28 |
Other References:
"Monographs of the Environmental Engineering Committee Polish Academy of Sciences 2014.", vol. 119, 30 July 2014, ISBN: 978-83-637-1418-5, article NOWAK MARIUSZ, JAROSZEK HANNA, TURKOWSKA MAGDALENA: "CONVERSION OF WASTE SODIUM SULFATE WITH BIPOLAR MEMBRANE ELECTRODIALYSIS", pages: 337 - 348, XP093145100
Attorney, Agent or Firm:
KIM, Tae Young (KR)
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