Detail publikace

Remediation of Smelter Contaminated Soil by Sequential Washing Using Biosurfactants

Zygmunt Mariusz Gusiatin, Jurate Kumpiene, Ivan Carabante, Maja Radziemska, Martin Brtnický

Originální název

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

This paper presents experimental results from the use of biosurfactants in the remediation of a soil from a smelter in Poland. In the soil, concentrations of Cu (1659.1 mg/kg) and Pb (290.8 mg/kg) exceeded the limit values. Triple batch washing was tested as a soil treatment. Three main variants were used, each starting with a different plant-derived (saponin, S; tannic acid, T) or microbial (rhamnolipids, R) biosurfactant solution in the first washing, followed by 9 different sequences using combinations of the tested biosurfactants (27 in total). The efficiency of the washing was determined based on the concentration of metal removed after each washing (C-R), the cumulative removal efficiency (E-cumulative) and metal stability (calculated as the reduced partition index, I-r, based on the metal fractions from BCR sequential extraction). The type of biosurfactant sequence influenced the C-R values. The variants that began with S and R had the highest average E-cumulative for Cu and Pb, respectively. The E-cumulative value correlated very strongly (r > 0.8) with the stability of the residual metals in the soil. The average E-cumulative and stability of Cu were the highest, 87.4% and 0.40, respectively, with the S-S-S, S-S-T, S-S-R and S-R-T sequences. Lead removal and stability were the highest, 64-73% and 0.36-0.41, respectively, with the R-R-R, R-R-S, R-S-R and R-S-S sequences. Although the loss of biosurfactants was below 10% after each washing, sequential washing with biosurfactants enriched the soil with external organic carbon by an average of 27-fold (S-first variant), 24-fold (R first) or 19-fold (T first). With regard to environmental limit values, metal stability and organic carbon resources, sequential washing with different biosurfactants is a beneficial strategy for the remediation of smelter-contaminated soil with given properties.

Klíčová slova

remediation; soil; copper; lead; saponin; tannic acid; rhamnolipids; organic carbon

Autoři

Zygmunt Mariusz Gusiatin, Jurate Kumpiene, Ivan Carabante, Maja Radziemska, Martin Brtnický

Vydáno

7. 12. 2021

Nakladatel

MDPI

Místo

BASEL

ISSN

1660-4601

Periodikum

International Journal of Environmental Research and Public Health

Ročník

Číslo

12875

Stát

Švýcarská konfederace

Strany od

Strany do

Strany počet

URL

https://www.mdpi.com/1660-4601/18/24/12875

BibTex

@article{BUT176986,
  author="Martin {Brtnický}",
  title="Remediation of Smelter Contaminated Soil by Sequential Washing Using Biosurfactants",
  journal="International Journal of Environmental Research and Public Health",
  year="2021",
  volume="18",
  number="12875",
  pages="1--21",
  doi="10.3390/ijerph182412875",
  issn="1660-4601",
  url="https://www.mdpi.com/1660-4601/18/24/12875"
}