Title:
SEPTIC TANK
Document Type and Number:
Japanese Patent JP2001334280
Kind Code:
A
Abstract:
To perform large flow rate adjustment even by a small amount of air by ensuring sufficient air lift water depth while suppressing the suction of accumulated sludge.
A septic tank is equipped with a sedimentation treatment tank 1 and a treatment tank 2 receiving water to be treated from the sedimentation treatment tank 1 to treat the same and an air lift pump is provided to the sedimentation treatment tank 1 to adjust a flow rate. The air lift pump 3 is formed into a Ushape and the leading end on the suction side of the air lift pump 3 is provided above the intermediate position of the tank and the lower part of the U-shaped part 3b of the air lift pump 3 is positioned at the lower part of the tank.
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Inventors:
YAMAGUCHI SHIGEYUKI
MINOURA HIDEKI
HIROTA SHINYA
KANO HIROSHI
SATO KENJI
NAKAOKA TAKAYOSHI
ITAGAKI MINEO
MINOURA HIDEKI
HIROTA SHINYA
KANO HIROSHI
SATO KENJI
NAKAOKA TAKAYOSHI
ITAGAKI MINEO
Application Number:
JP2000157444A
Publication Date:
December 04, 2001
Filing Date:
May 26, 2000
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
F04F1/18; C02F3/00; (IPC1-7): C02F3/00; F04F1/18
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)