METHOD FOR PRODUCING MINERAL-CONTAINING LIQUID AND EQUIPMENT THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a mineral-containing liquid from seawater and equipment therefor by which the operation from intake of seawater or marine deep water to preparation of a mineral-containing liquid having the objective concentration and hardness can be efficiently carried out in a series of processes at a low cost. SOLUTION: The method for producing a mineral-containing liquid has a step for separating seawater into softened seawater and hardened seawater with a nanofilter membrane.