| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuously using method and device of an adsorption column capable of suppressing a rise in pressure loss due to clogging and maintaining high efficiency in treatment even in the case of operating at the high velocity of flow. SOLUTION: After the completion of a series of operation of the balancing of an adsorption column, the loading of a liquid to be treated, washing, and the recovery of elution, the adsorption column is washed and regenerated sequentially with (1) a mixture between acetic acid and ethanol, (2) a mixture between sodium hydroxide and ethanol, and (3) an acid solution such as hydrochloric acid. An adsorbing layer 8 of adsorption supports with particle diameters of less than 100μm and an inert unadsorbed-support layer 9 of gel filtration supports, etc., with particle diameters coarser than those adsorption supports are arranged in the same or different column, and a liquid to be treated is brought to pass from the side of the unadsorbed-support layer 9.
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