USE OF GYPSUM WATER FOR CLARIFICATION OF CLAY SUSPENSION Russian patent published in 2024 - IPC C02F1/52 B01D21/01 

FIELD: chemistry.

SUBSTANCE: invention relates to clarification of clay suspensions and can be used to separate suspended substances of clay suspensions, which are often poorly settled, which complicates their further use, and discharge of such waste water into water bodies deteriorates living conditions of hydrobionts. To achieve high-quality clarification of clay suspensions, it is proposed to use gypsum water obtained by saturation of distilled water with calcium sulphate hemihydrate or calcium sulphate dihydrate – phosphogypsum.

EFFECT: intensification of clay suspension clarification process, obtaining of transparent colourless supernatant liquid, which can be reused or safely discharged into water body, obtaining more homogeneous sediment.

1 cl, 13 tbl, 15 ex