| 摘要 |
Aerator for aerating air in a liquid (12) in a treatment vessel (7) comprising a motor (1) driving a propeller (4) a Venturi nozzle (2) being placed right behind the propeller (4). When the propeller (4) rotates, an air flow will take place through the Venturi nozzle (2), and this flow will sweep along air from an air hose, said air aerating said liquid efficiently by means of the propeller (4). Moreover, a strong effect on the direction of the flow is achieved in order that good circulation in the vessel (7) will take place while being operated in order that even and efficient aeration is attained.
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