FIELD: chemistry.
SUBSTANCE: method includes processing of water, which contains bicarbonates of calcium and magnesium and iron hydroxide, with sorbent in form of fibrillated cellulose fibres, which contains, in wt %: not less than 90% fibres with length not longer than 0.47 mm and not less than 50% fibres with length not longer than 0.12 mm, with sulphuric acid with formation of dispersion, which is then processed with carbonate and hydroxide of sodium. Obtained composite material is removed from dispersion by method of pressure flotation with obtaining softened purified water.
EFFECT: softening and deironing of water in water supply systems.
3 cl, 3 ex
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