Remediation of soil contaminated with organic and inorganic wood impregnation chemicals by soil washing

Kumpiene, Jurate (author): Luleå tekniska universitet,Geovetenskap och miljöteknik

Nordmark, Désirée (author): Luleå tekniska universitet,Geovetenskap och miljöteknik

Carabante, Ivan (author): Luleå tekniska universitet,Geovetenskap och miljöteknik

Sužiedelytė-Visockienė, Jūratė (author): Department of Geodesy and Cadastre, Vilnius Gediminas Technical University

Česlovas Aksamitauskas, Vladislovas (author): Department of Geodesy and Cadastre, Vilnius Gediminas Technical University

(creator_code:org_t)

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

The aim of this study was to evaluate the efficiency of a large scale washing/wet sieving technique for a soil contaminated with wood impregnation chemicals by 1) defining the final distribution of trace elements (As, Cu, Cr, Zn) and polycyclic aromatic hydrocarbons (PAH) in separated soil particle size fractions; and 2) defining the leaching behavior of the contaminants in these soil fractions. A soil washing experiment was implemented at waste management facility in Sweden using a full scale soil sorting and washing equipment. Five tons of soil was loaded to the equipment and wet-sieved into the following fractions: >16 mm, 8–16 mm, 2–8 mm, 0.2–2 mm, <0.2 mm and a fraction that floated on top of the slurry before the final separation phase, composed of organic matter (OM). Analysis of total concentrations of contaminants in all soil fractions indicated that wet sieving/soil washing was not efficient to reduce the total volume of soil that needs further treatment. Even the coarsest soil fractions (>8 mm) contained elevated concentrations of total As and PAH. Leaching of As from all washed soil fractions was so high, that none of the particle size fractions could be disposed of without additional treatment.

By the author/editor: Kumpiene, Jurate; Nordmark, Désiré ...; Carabante, Ivan; Sužiedelytė-Viso ...; Česlovas Aksamit ...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Environmental En ...; and Other Environmen ...

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