AIR DIFFUSER TYPE STIRRING DEVICE FOR AERATION TANK

摘要

PROBLEM TO BE SOLVED: To provide an air diffuser type stirring device for aeration tank, which is capable of reducing the aeration quantity (the quantity of supplied air) to aerobically biological treatment in an aeration tank and preventing the deposition of sludge on the bottom of the aerating tank. SOLUTION: Compressed air generated in a compressor 10 is temporarily stored in a reserve tank 11 through a pipeline 14. The stored compressed air is sent to a diffusion pipe 12 through a pipeline 15. The air diffusing pipe 12 is divided into diffusion parts 12a-12f and the quantity of compressed air to be diffused therefrom is properly controlled by a solenoid valve 16, a valve 17 and respective valves 18a-18f.