Device for scrubbing polluted gases and the method of scrubbing polluted gases combined with biological treatment in the closed cycle of scrubbing water

摘要

The present invention relates to the device for scrubbing polluted gases, organic vapours, odours and other aggressive particles, combined with the device destined for biological treatment of water used for this scrubbing. The treated water is returned to the process and used especially for carrying out this specific type of scrubbing where a large surface of drops and mist is formed due to the activity of numerous spraying nozzles multilayerly arranged inside the vertical scrubbing tower. This surface is made of scrubbing water being sprayed on numerous concentric conical rings which are placed on the inner wall of the scrubbing tower between the certain ring segments of sprayers' range of reaction causing the formation of subsequent cascades increasing thus the time the liquid spends in the scrubbing tower, which constitutes the factor improving the scrubbing process of gases and moreover ensuring strong aeration and what follows the absorption of oxygen by scrubbing liquid which undergoes biological treatment by means of adsorptive filters that results in the arrest of pollutions absorbed by the liquid, while scrubbing water is purified. Whereas the specialized bacteria culture decomposes pollutions converting all hydrocarbons into CO 2 and water, regenerating this way the adsorptive element and enriching scrubbing water with enzymes to return it clean to the recirculation tank and the scrubbing system when resuming the cycle.