Variations of Axial Mixing in an Aeration Tank

Abstract

<p>The axially dispersed plug flow model was used to study the variations of axial mixing in a laboratory model aeration tank, with variations of temperature, air flow rate, and water flow rate. The effect of geometry was also considered briefly by comparing two different width to depth ratios. Other theoretical models used to describe an aeration tank were examined by comparing the predicted theoretical tracer out-put with the experimental out-put.</p> <p>Full scale field tests were made on an aeration tank and the results compared to the laboratory model.</p>