公开(公告)号：US20240034658A1

公开(公告)日：2024-02-01

申请号：US18134906

申请日：2023-04-14

Applicant: Samsung Engineering Co., Ltd. ,  Samsung Electronics Co., Ltd.

Inventor： Seok Hwan HONG ,  Dae Soo PARK ,  Seung Joon CHUNG ,  Yong Xun JIN ,  Jae Hyung PARK ,  Jae Hoon CHOI ,  Jae Dong HWANG ,  Jong Keun YI ,  Su Hyoung CHO ,  Kyu Won HWANG ,  June Yurl HUR ,  Je Hun KIM ,  Ji Won CHUN

IPC: C02F9/00 ,  B01D61/02 ,  B01D61/14 ,  B01D61/58

CPC classification number: C02F9/00 ,  B01D61/025 ,  B01D61/147 ,  B01D61/145 ,  B01D61/58 ,  C02F2001/007

Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).

公开(公告)号：US20250074804A1

公开(公告)日：2025-03-06

申请号：US18743311

申请日：2024-06-14

Applicant: Samsung E&A Co., Ltd. ,  Samsung Electronics Co., Ltd.

Inventor： Soo Jin SHIM ,  Hye Sook SUNG ,  Jeong Su CHO ,  Seung Joon CHUNG ,  Jae Dong HWANG ,  Hyeon Seok KANG ,  Je Hun KIM ,  Chang Hyun NAHM

IPC: C02F9/00 ,  B01D21/00 ,  B01D21/01 ,  B01D21/08 ,  C02F1/00 ,  C02F1/52 ,  C02F1/56 ,  C02F1/66 ,  C02F101/10 ,  C02F101/14

Abstract: The method for treating wastewater includes a first flocculation-and-sedimentation process and a second flocculation-and-sedimentation process, wherein the first flocculation-and-sedimentation process include: passing wastewater through a first flocculation reaction tank; passing the first treated water through a third flocculation reaction tank; passing the third treated water through a fourth flocculation reaction tank; and passing the fourth treated water through a first sedimentation tank to generate fifth treated water and sludge, and the second flocculation-and-sedimentation process include: passing the fifth treated water through a fifth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a sixth flocculation reaction tank to generate sixth treated water; passing the sixth treated water through a seventh flocculation reaction tank to generate eighth treated water; and passing the eighth treated water through a second sedimentation tank to generate ninth treated water and sludge.