| abstract |
A process and assembly oxidize pollutants and other organic substances in gases, fluid and matrices of suspended solids especially during the oxidative use of electron beam processes. The substance that is to be treated is surrendered as a solution, a suspension, or gas, into a body of foam having fine bubbles and liquid, into which a liquid bearing an oxidizing agent has been sprayed. The ratio of liquid to gas is in the range from 3 to 1,000 m<3> and the foam is from 1 to 50 cm thick. The pollutants held in the foam are continually subjected to electron beam radiation at an energy level of between 0.05 and 15 MeV. An oxidizing agent is introduced to the foam while the foam is subjected to the radiation beam. Each electron beam passes through a succession of many bubbles and the enclosed gas, especially oxygen, generates ozone which is immediately and finely distributed throughout the foam. The substance in question is consumed by ozone, and not by other oxidizing substances or other organic or inorganic substances whose removal is required. A suitable assembly consists of: (I) a reaction chamber (1) (II) with a jet (2) (III) and with a fluid inlet pipe (3), (IV) a gas inlet (5), (V) a drain (4) to a droplet separator (6), (VI) an electron beam emitter (7) directed at the reaction zone (15), (VII) pumps (8), (VIII) blowers (9), (IX) dosing assembly (10) (X) and regulator (11). |