FIELD: chemistry.
SUBSTANCE: invention relates to remediation of soil. Composition for remediation of soil contaminated with arsenic-containing compounds, contains gaize treated iron(III) chloride, calcium peroxide and an oxidant in following ratio of components, wt%: gaize – 99.5, iron(III) chloride – 0.2, calcium peroxide – 0.3. Composition reduces content of water-soluble forms of arsenic in soil from 90 to 96.8 % and provides immobilisation of arsenic(V) compounds on aluminosilicate gaize.
EFFECT: invention can be used in treatment of soils for different purposes, contaminated arsenic-containing compounds.
1 cl, 2 dwg, 1 tbl
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