FIELD: decontamination of water-streams on final stages of sewage treatment plants and on water intakes. SUBSTANCE: the invention presents a device for a decontamination of water- streams. It allows to exercise reactant-free decontaminations of water-streams and may be used for decontamination of water-streams on the final stages of sewage treatment plants and for decontamination of water-streams on water intakes. The device has a body, pipelines of supply and export of water, electrodes connected to the ac source, and an ac-insulating partition with the holes, mounted between the electrodes. The device is supplied with the gate with a control. The electrodes are mounted on the ac-insulating partition. At that, the first on a water-stream run electrodes are made with the taper-type holes and the second on a water-stream run electrodes holes have a cylindrical form. The diameter of holes of the lower electrode is 2-4 times bigger than diameter of the holes in the ac-insulating partition. EFFECT: increase of productivity and decrease of power inputs due to decontamination of great volume of a liquid in a unit of time. 2 cl, 2 dwg
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