FIELD: air pollution safety measures. SUBSTANCE: unit is made of vertical cylindrical columns with their cross-sections increasing upwards. Each column is a step with a system of circulating absorbent; exhaust gases move inside columns from bottom upwards, with the exhaust absorbent being dispersed in the upper part of the column by centrifugal nozzles and traveling downwards, to adjacent step to be used as the fresh initial one. From the lowest step, absorbent is from time to time sent for regeneration after reaching a saturated concentration of compounds absorbed. EFFECT: higher efficiency and reliability. 1 cl, 2 dwg
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