FIELD: chemistry.
SUBSTANCE: invention relates to purification of water from strontium. A method is proposed for making a sorbent for purifying water from strontium radioactive nuclides, involving roasting Cambrian clay granules at 750-850°C, treatment of the clay with an iron salt solution until saturation after roasting, washing with water and treatment with an ortho-phosphate solution until saturation with formation of an iron phosphate layer on the surface of the clay.
EFFECT: invention enables to obtain a sorbent with high strontium sorption capacity.
3 ex
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