Challenge of The present invention, by using a hollow fiber membrane, both inside and outside of the membrane The present invention is to provide a possible adsorption column of improving the adsorption performance of the adsorbent material by supplying a processing liquid to a. The solving means is the hollow fiber membrane bundle is embedded in the casing, a adsorption column provided with a processing liquid deriving portion and the treatment liquid introducing portion to the both ends of the case, the processing liquid flowing from the treatment liquid introduction portion There has a structure that is in direct contact with the inner surface and an outer surface of the hollow fiber membrane, the hollow fiber membrane has a porous structure, the hollow fiber membrane inside diameter Ri, and an outside diameter Ro, the length L, the hollow fiber membrane number is N, the thickness of the partition wall l, the average diameter of the external flow hole RP, the number of external circulation holes n the case inside diameter defining R, the hollow fiber membrane and the header part, said the pressure loss of the hollow fiber membrane , the pressure loss of the hollow fiber Makugaibu as , = A L / (N Ri4), = A L (R + N Ro) 2 / (R2 -N Ro2) 3 + l / (n RP4) When it is in the, 0.15 < /
