Title:
AEROBIC BIOLOGICAL TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/163427
Kind Code:
A1
Abstract:
Provided is an aerobic biological treatment device 1 comprising: a reaction tank (a tank body) 2; a water-permeable plate 3 installed horizontally in the lower part of the reaction tank 2; a large-diameter particle layer 4 formed on the upper side of the water-permeable plate 3; a small-diameter particle layer 5 formed on the upper side of the large-diameter particle layer 4; an oxygen-dissolving membrane module 6 arranged on the upper side of the small-diameter particle layer 5; a reception chamber 7 formed on the lower side of the water-permeable plate 3; a raw water spray tube 8 for supplying raw water within the reception chamber 7; and an air diffuser tube 9 installed for the purpose of diffusing air within the reception chamber 7. The upper part of the reaction tank 2 is a widened section 2W having a large horizontal cross-sectional area.
Inventors:
KOBAYASHI HIDEKI (JP)
FUKASE TETSUROU (JP)
FUKASE TETSUROU (JP)
Application Number:
PCT/JP2019/002701
Publication Date:
August 29, 2019
Filing Date:
January 28, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F3/08; B01F1/00; B01F3/04; B01F5/06
Foreign References:
| JPS6490093A | 1989-04-05 | |||
| JPS56100694A | 1981-08-12 | |||
| JPH059697U | 1993-02-09 | |||
| JPS55153195U | 1980-11-05 | |||
| JP2005034739A | 2005-02-10 | |||
| CN205472890U | 2016-08-17 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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