COMPOSITION FOR REMEDIATION OF SOIL CONTAMINATED WITH ARSENIC-CONTAINING COMPOUNDS

摘要

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