FIELD: wastewater treatment plants.
SUBSTANCE: invention relates to a method for dewatering sludges and / or sediments, water purification. Method comprises contacting a sludge and / or a sediment with a surface-treated calcium carbonate, in which 1% of the accessible surface area of the calcium carbonate is covered by a coating containing one cationic polymer, and phyllosilicate for the obtaining and removal of a composite material.
EFFECT: invention makes it possible to reduce the amount of polymer assistants of flocculation in water and / or sludges and / or sediments and improve the quality of dewatering and purification.
29 cl, 7 ex
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