DESALINATION METHOD AND CONCENTRATION METHOD OF DEEP WATER, DESALINATED DEEP WATER, AND CONCENTRATED DEEP-SEA WATER

摘要

PPROBLEM TO BE SOLVED: To provide a method and an apparatus which, when freshwater obtained from deep-sea water and concentrated deep-sea water are used for various products, can control the amount of contained solutes in accordance with the usage of the obtained freshwater and concentrated deep-sea water, and enables efficient desalination and concentration under normal pressure. PSOLUTION: Seawater obtained from deep sea is poured into a pressure-reducing chamber and heated to evaporate water in the deep-sea water. The evaporated water is condensed to obtain the freshwater. The concentrated deep water remaining in the pressure-reducing chamber is taken out. The water in the concentrated deep water is further evaporated according to demand to obtain salts. The water in the deep water can be separated in a short time. When the degree of vacuum of the pressure-reducing chamber is increased, contamination of the solutes into distilled water is increased, and when the degree of vacuum is decreased, the contamination is reduced. By using this, the ratio of mineral components in the obtained freshwater or concentrated deep water can be changed. PCOPYRIGHT: (C)2004,JPO