BUBBLE COLUMN BBC 4.1: Glass cylinder with fine-pore diffusor and a volume of about 1.4 l for ozone in water experiments. The counter-current gas-liquid flow offers an enhanced mass transfer efficiency.

Defined Ozone Dosage (DOD): A method to prepare ozonated water with a defined ozone concentration for laboratory experiments under controlled conditions. A saturated stock solution is formed within a few minutes and is then available for use in batch reactors. The dissolved ozone concentration can reach about 30 mg/l (30 ppm_w) in ultra-pure water.

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