DEVICE FOR ADJUSTING WATER LEVEL FOR AERATION TANK

摘要

PROBLEM TO BE SOLVED: To provide a device for adjusting a height of a water level of an aeration tank in a drain treatment device capable of adjusting and treating a capacity load and a sludge load in the aeration tank to appropriate values against a variation of drain load by a simple method.

SOLUTION: The device for adjusting a water level adjusts the water level of the aeration tank in the drain treatment device and is provided with a movable cylinder body for adjusting a height of liquid level of the aeration tank; an accommodation cylinder body for adjusting a height of this movable cylinder body and accommodating it; and a driving mechanism part for optionally moving the movable cylinder body. The movable cylinder body is provided with an opening for flowing-in the drain at an upper part. A combination body of the movable cylinder body and the accommodation cylinder body is formed communicatably with a tank at a subsequent step in order to adjust a water level.

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