FIELD: chemistry.
SUBSTANCE: invention relates to a method of intensifying processes of freezing colloidal sludge-lignin sediments in accumulation maps by creating conditions for natural sectoral freezing of sediment with its vertical perforation. Method includes natural precipitation of precipitate during cold season, with subsequent thawing and pumping of melt water, accompanied by destruction of its plate-like colloidal structure and transition into granular state. Method is carried out in accumulation maps by dividing them into square sectors in ratio: number of sectors n to total area of map S (m2) - n:S, as 1:4, in which vertical thickness of the sediment is vertically perforated, with hole diameter of 0.2 m.
EFFECT: technical result of the invention is intensification of processes of destruction of colloidal structure of large-tonnage sediments of sludge-lignin.
1 cl, 2 tbl
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