Title:
Settling basin
Document Type and Number:
Japanese Patent JP6316156
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sedimentation basin where the installation and maintenance of a filter part are easy and the prevention of the stack of a solid content on the upper screen of the filter part and the efficient washing of a filter material layer can be performed.SOLUTION: In a sedimentation basin comprising a sedimentation part for precipitating a solid content in water to be treated and a filter part for filtering the water to be treated passed through the sedimentation part, the filter part includes: the flow passage of the water to be treated flowing with the upward flow of the water to be treated; a filter material layer consisting of a plurality of filter materials filled within the flow passage of the water to be treated; the outflow part of treatment water where the treatment water obtained by the filtration of the water to be treated at the filter material layer outflows; and an outflow part screen being disposed at the outflow part of the treatment water and preventing the filter materials from outflowing. The outflow part screen is a vertically installed screen extending in an inclined or orthogonal direction to a horizontal plane and has an opening where the screen is not disposed at least a part above the filter material layer.SELECTED DRAWING: Figure 1
Inventors:
Yusuke Moriya
Tetsuya Yanase
Tetsuya Yanase
Application Number:
JP2014192730A
Publication Date:
April 25, 2018
Filing Date:
September 22, 2014
Export Citation:
Assignee:
METAWATER Co., Ltd.
International Classes:
B01D21/02; B01D21/18; B01D21/24; B01D24/16; B01D24/26; B01D24/46; B01D29/00; B01D29/66
Domestic Patent References:
| JP5137906A | ||||
| JP7328329A | ||||
| JP7289812A |
Foreign References:
| WO2012161339A1 | ||||
| US4125467 |
Attorney, Agent or Firm:
Kenji Sugimura
Yuta Terashima
Yuta Terashima