METHOD OF OBTAINING NONTOXIC SOLUTION FREE OF MICROORGANISMS Russian patent published in 1995 - IPC

FIELD: method of obtaining nontoxic solution of at least one water-soluble solid substance. SUBSTANCE: method involves introducing solid substance or concentrated solution of this substance into reservoir with selectively permeable membrane, whose one side is in contact with solid substance or its solution and opposite side is in contact with water; providing penetration of water free of microorganisms into reservoir under the action of osmosis, with at least one water-soluble substance having low molar weight. It allows this water-soluble substance to penetrate through membrane into water. At least one water-soluble substance with high molar weight may be further introduced into reservoir, with value of molar weight of this substance preventing it from penetrating into water through membrane. At least one of water-soluble substances is selected in the group consisting of sugar, polymeric glucoses, polysaccharides, rice flour, aminoacids, potassium chloride and sodium chloride. Method may be used for obtaining solution practiced in oral rehydration therapy, medicine preparations, blood substitutes, dehydrated food product, potable water etc. EFFECT: wider operational capabilities and increased efficiency. 13 cl, 4 dwg