METHOD FOR PURIFICATION OF FOUL DIRT BY AERATION AND APPARATUS THEREFOR

摘要

Inside a purification tank (14), the contents of the main flow including bubbles are agitated to create reflux at various directions and speeds within the water for air bubbles to make better contact with the recirculating water. In this way, water contiguous to air bubbles is spread all over in the tank. The main reflux current is produced by a blower (5) and an agitator (B) in the water inlet passage (A). The method circulates waste water in the tank to improve contact with oxygen.