Clarification tank

The utility model provides a clarification tank, which belongs to the technical field of water treatment, and comprises a tank body, the tank body is provided with a sewage inlet and a clear water outlet, a filter device is arranged between the sewage inlet and the clear water outlet of the tank body, and an aerator pipe is arranged in the tank body and is positioned on one side, close to the sewage inlet, of the filter device. And the aeration pipe is provided with an aeration port facing the filtering device. According to the clarification tank provided by the utility model, the aeration pipe is arranged, so that aeration on the filtering device is facilitated, and a biological membrane attached to the filler can be shaken off through aeration, so that the filler can be conveniently cleaned at regular intervals. 本实用新型提供了一种澄清池，属于水处理技术领域，该澄清池包括池本体，池本体具有污水进口和清水出口，池本体的污水进口和清水出口之间设置有过滤装置，池本体内设置有曝气管，并位于过滤装置的靠近污水进口的一面，曝气管上具有朝向过滤装置的曝气口。本实用新型提供的澄清池，通过设置曝气管有利于对过滤装置进行曝气，曝气能够振落填料上附着的生物膜，从而便于对填料进行定期清理。