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Patent Searching and Data


Title:
WASTE WATER TREATMENT DEVICE, AND WASTE WATER TREATMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2023/276996
Kind Code:
A1
Abstract:
The present invention provides a waste water treatment device 10 capable of efficiently carrying out a denitrification reaction. The waste water treatment device 10 is provided with a reaction tank 2, the reaction tank 2 includes partitioning plates 5, 6, and the partitioning plates 5, 6 include cut-out portions 5c, 6c, 5f, 6f. The partitioning plates 5, 6 divide the reaction tank 2 into a nitrification reaction region D1 and denitrification reaction regions D2L, D2R, and water being treated moves from the nitrification reaction region D1 to the denitrification reaction regions D2L, D2R by overflowing partitioning plate upper edge portions 5e, 6e, which are edge portions of the cut-out portions 5c, 6c, and returns from the denitrification reaction regions D2L, D2R to the nitrification reaction region D1 via the cut-out portions 5f, 6f, thereby forming a circulating flow that circulates around the partitioning plates 5, 6.

Inventors:
TAMURA NAOYA (JP)
WATANABE ATSUSHI (JP)
ZHANG LIANG (JP)
NGUYEN THANH PHONG (JP)
Application Number:
PCT/JP2022/025690
Publication Date:
January 05, 2023
Filing Date:
June 28, 2022
Export Citation:
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Assignee:
MAEZAWA KOGYO (JP)
International Classes:
C02F3/12; C02F1/44; C02F3/34
Domestic Patent References:
WO2020054687A12020-03-19
WO2018198422A12018-11-01
Foreign References:
JP2019150820A2019-09-12
CN105217891A2016-01-06
Attorney, Agent or Firm:
TANIGAWA AND PARTNERS, PATENT FIRM (JP)
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