The unused ozone was taken out of the bubble column reactor through the Tygon tubing, and bubbled into 2% KI solution in the washing bottles, where the potassium iodide solution reacted with the excess ozone according to the following equation:
The unused ozone was taken out of the bubble column reactorthrough the Tygon tubing, and bubbled into 2% KI solution in thewashing bottles, where the potassium iodide solution reacted withthe excess ozone according to the following equation: