Title:
AEROBIC TREATMENT APPARATUS
Document Type and Number:
Japanese Patent JP3451964
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the lowering of treatment capacity by uniformizing the concn. distribution of the microorganism carrier in a treatment tank.
SOLUTION: A plurality of air diffusion plates 26 supplying air into water to be treated to form an aerobic condition are arranged to the bottom part in a treatment tank 14 and an air supply line 30 supplying air to a plurality of the air diffusion plates 26 is divided into a plurality of groups from the air diffusion plate 26 on the side of an inflow port 18 to the air diffusion plate 26 on the side of an outflow port 22. Flow rate adjusting valves 32 controlling the amount air supplied to the air diffusion plates 26 of the respective groups are provided to indivisually control the air diffusion amount from the air diffusion plates 26 at groups.
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Inventors:
Makoto Tanaka
Masayoshi Sakuma
Hideyuki Suwa
Masayoshi Sakuma
Hideyuki Suwa
Application Number:
JP30731698A
Publication Date:
September 29, 2003
Filing Date:
October 28, 1998
Export Citation:
Assignee:
Hitachi Plant Construction Co., Ltd.
International Classes:
C02F3/08; C02F3/12; (IPC1-7): C02F3/08
Domestic Patent References:
| JP8173982A | ||||
| JP7124582A | ||||
| JP11169877A |