Title:
INTERMITTENT AERATION PURIFYING TANK
Document Type and Number:
Japanese Patent JPH0647387
Kind Code:
A
Abstract:
PURPOSE: To provide a purifying tank efficiently removing nitrogen in sewage.
CONSTITUTION: In an intermittent aeration purifying tank at least equipped with a flow rate control tank 5 and an intermittent aeration tank 9, a pump 6 transferring sewage from the flow rate control tank 5 to the intermittent aeration tank 9 is cooperated with an aeration blower 12 so as to be operated when the flower 12 is stopped and, only when the aeration in the repetition of the aeration and non-aeration of a treatment process is stopped, sewage is quantitatively supplied from the flow rate control tank 5 to the intermittent aeration tank 9.
Inventors:
ISHII YASUHIRO
Application Number:
JP20230992A
Publication Date:
February 22, 1994
Filing Date:
July 29, 1992
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD
International Classes:
C02F3/00; C02F3/12; C02F3/30; (IPC1-7): C02F3/00; C02F3/12; C02F3/30
Attorney, Agent or Firm:
Kunihiko Wakabayashi
Next Patent: TREATMENT OF WASTE WATER