Title:
AEROBIC BIOLOGICAL TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/159667
Kind Code:
A1
Abstract:
An aerobic biological treatment device 1 has a reaction tank (tank body) 2, a water permeable plate 3 disposed horizontally in the lower portion of the reaction tank 2, a large particle layer 4 formed above the water permeable plate 3, a small particle layer 5 formed above the large particle layer 4, an oxygen dissolving membrane module 6 disposed above the small particle layer 5, a receiving chamber 7 formed below the water permeable plate 3, a raw water spray pipe 8 to supply raw water into the receiving chamber 7, an aeration pipe 9 disposed so as to aerate inside the receiving chamber 7, and the like. A condensate water discharge pipe 30 branches from an exhaust pipe 28 from the oxygen dissolving membrane module 6, and a valve 31 is provided.
Inventors:
FUKASE TETSUROU (JP)
KOBAYASHI HIDEKI (JP)
KOBAYASHI HIDEKI (JP)
Application Number:
PCT/JP2019/002695
Publication Date:
August 22, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F3/12; B01D63/02; B01D69/00; B01F1/00; B01F3/04; B01F5/06; C02F1/44; C02F3/08; C02F3/26
Domestic Patent References:
| WO2016167134A1 | 2016-10-20 |
Foreign References:
| JPH0568996A | 1993-03-23 | |||
| JPH06507335A | 1994-08-25 | |||
| JPH0760275A | 1995-03-07 | |||
| JPH04371298A | 1992-12-24 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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