FIELD: cleaning of natural waters.
SUBSTANCE: invention relates to reagent methods of water cleaning and it can be used for cleaning natural water delivered for industrial and drinking purposes. Proposed method includes addition of coagulant and grained sand into water, flocculation with subsequent clarification of water by filtering though layer of flakes suspended in uprising flow at constant removal of flakes from upper part of suspended layer in process of filtering. Sand grains of size, 0.02-0.1 mm are used, and settled flakes from suspended layer are continuously introduced into water before flocculation.
EFFECT: increased capacity at cleaning of water.
3 cl, 1 ex, 1 dwg
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