FIELD: filters.
SUBSTANCE: invention relates to methods for producing filtering materials for water purification from manganese and hydrosulfide ion. To obtain a filtering material natural zeolite with a clinoptilolite content of at least 70 wt.% is used. First, the material is treated with a solution of salt of divalent manganese, and then with a solution of potassium permanganate. Treatment with potassium permanganate solution is carried out at 79–80 °C.
EFFECT: invention provides the maximum content of a manganese dioxide phase on the sorption surface of material particles.
1 cl, 7 dwg
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