ELECTRODIFFUSION MEASUREMENTS OF THE VELOCITY OF A LIQUID IN A BUBBLE-COLUMN

Investigations on rotating disk electrodes have shown that oxygen can serve as the electroactive substance for electrodiffusional diagnostic s (EDD). At the present time, EDD can be employed in aqueous solutions . The range in which EDD measurements of the parameters of a liquid fl ow can be carried out with the use of oxygen as the electroactive subs tance is restricted by the maximal velocity of the liquid (approximate ly 1.0 m/sec). EDD measurements of the velocity of a liquid and the in tensity of the turbulence by a flow-direction sensor with a platinum e lectrode in a bubble column have displayed excellent agreement with th e results obtained with the aid of hot film anemometry.