Column with adsorbent granular solid bed adapted to form part of a series of N columns disposed in series, the number of columns N in series of between 4 and 24, and preferentially of between 6 and 15, the column comprising a plurality of peripheral ducts evenly distributed at the periphery of the column, linked to a single, substantially central supply duct , each peripheral duct supplying a distribution channel of the column, followed downstream in the direction of flow of the fluid, by a grating , the collection of the fluid leaving the column being done from a collection channel by means of a single duct substantially centred on the vertical axis of the column, the discharge velocity of the fluid entering into the peripheral ducts being between 1 and 6 m.s -1 , and the flow of the fluid in the column being axial or radial, and the number of peripheral ducts varying between 4 and 20, preferentially between 6 and 12, or the column comprising a central duct substantially centred on the vertical axis of the column, linked to a single, substantially central supply duct , the central duct supplying a distribution channel of the column, followed downstream in the direction of flow of the fluid, by a grating , the collection of the fluid leaving the column being done from a collection channel via a plurality of peripheral ducts evenly distributed at the periphery of the column, and all throughput being gathered in a single discharge duct substantially centred on the vertical axis of the column, the discharge velocity of the fluid leaving the peripheral ducts being between 1 and 6 m.s -1 , and the flow of the fluid in the column being axial or radial, and the number of peripheral ducts varying between 4 and 20, preferentially between 6 and 12. the column comprising a plurality of peripheral ducts evenly distributed at the periphery of the column, linked to a single, substantially central supply duct , each peripheral duct supplying a distribution channel of the column, followed downstream in the direction of flow of the fluid, by a grating , the collection of the fluid leaving the column being done from a collection channel by means of a single duct substantially centred on the vertical axis of the column, the discharge velocity of the fluid entering into the peripheral ducts being between 1 and 6 m.s -1 , and the flow of the fluid in the column being axial or radial, and the number of peripheral ducts varying between 4 and 20, preferentially between 6 and 12, or the column comprising a central duct substantially centred on the vertical axis of the column, linked to a single, substantially central supply duct , the central duct supplying a distribution channel of the column, followed downstream in the direction of flow of the fluid, by a grating , the collection of the fluid leaving the column being done from a collection channel via a plurality of peripheral ducts evenly distributed at the periphery of the column, and all throughput being gathered in a single discharge duct substantially centred on the vertical axis of the column, the discharge velocity of the fluid leaving the peripheral ducts being between 1 and 6 m.s -1 , and the flow of the fluid in the column being axial or radial, and the number of peripheral ducts varying between 4 and 20, preferentially between 6 and 12. <EOS>