2015 Volume 15 Issue 1 Pages 19-23
As an useful advanced technology, ozone is rapidly introduced in the field of water and wastewater treatment due to its high oxidizing ability. In the present study, for the purpose of improving ozonation efficiency by applying micro-bubbles technology, characteristics of ozone dissolution and pharmaceuticals decomposition phenomena were analyzed and evaluated. From lab-scale micro-bubbles ozonation experiments, it was found that ozone micro-bubbles had high overall convective mass transfer coefficients due to its extensive gas-liquid interfacial area and had superior ozone dissolution ability under high temperature conditions. Secondly, pharmaceuticals having high decomposition rates were presumed to be hydrophilic, and micro-bubbles ozonation had high decompositions coefficients as for Acetaminophen.
