Other

Nicholas Katsikaros

Robin John Batterham

Warwick Arthur Hoffmann

A reactor for aerating a fluid with a gas comprises a mixing tank ( ) for the fluid and a centrally located vertical draft tube ( ) submerged in the fluid to divide the mixing tank ( ) into an inner chamber ( ) and an outer chamber ( ). The reactor further comprises a motor driven axial flow impeller ( ) located in the draft tube ( ) for circulating fluid downwardly through the inner chamber ( ) and upwardly through the outer chamber ( ). The reactor further comprises an external circuit for withdrawing a portion of the fluid from the mixing tank ( ), aerating the fluid, and returning the aerated fluid to the mixing tank ( ). The aerator is in the form of a venturi device ( ).

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Heidelberg, Australia

Nicholas Katsikaros