FIELD: chemistry.
SUBSTANCE: invention relates to sorption technologies. Proposed composite granular sorbent for the extraction of heavy metals. Sorbent includes a mixture containing 50 wt.% of glauconite, 25 wt.% of expanded vermiculite, 25 wt.% of expanded perlite, subjected to heat treatment. Sorbent has a specific surface area in the range of 19–20 m2/g.
EFFECT: increase the efficiency of irreversible sorption of heavy metals.
1 cl, 1 tbl, 5 ex
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