Column leaching and sorption experiments to assess the mobility of potentially toxic elements in industrially contaminated land

Peter Anderson, Christine Davidson, A L Duncan, D Littlejohn, Allan M. Ure, L M Garden

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Made-up ground collected from layers of a trial pit excavated on a former industrial site was treated with artificial rainwater in a series of column leaching and sorption experiments. Metal mobility and the ability of various layers of material obtained from the pit to act as sources or sinks of potentially toxic elements were assessed. Samples from different layers varied in their abilities to raise the pH of rainwater applied at pH 3.5 and 4.3, and this was reflected in the amounts of metals mobilised by the rainwater as it percolated through the soil column. Material from the top two layers of the pit released cadmium, copper, manganese, lead, nickel and zinc to the aqueous phase, but the lower layers, with higher buffering capacity, were able to resist acidification even when the equivalent of 12 months' rainfall (western UK) was applied. Column sorption experiments confirmed the ability of material from layer 4 (48–50 cm) to take up copper, manganese and zinc. Metals were determined in the leachates by flame and electrothermal atomic absorption spectrometry and principle anions by ion chromatography.
LanguageEnglish
Pages234-239
Number of pages6
JournalJournal of Environmental Monitoring
Volume2
Issue number3
DOIs
Publication statusPublished - 2000

Fingerprint

contaminated land
Poisons
sorption
Metals
leaching
Manganese
Zinc
Copper
rainwater
experiment
Nickel
Cadmium
Anions
Chromatography
manganese
metal
Spectrum Analysis
Soil
zinc
Ions

Keywords

  • environmental monitoring
  • column leaching
  • toxic metals

Cite this

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abstract = "Made-up ground collected from layers of a trial pit excavated on a former industrial site was treated with artificial rainwater in a series of column leaching and sorption experiments. Metal mobility and the ability of various layers of material obtained from the pit to act as sources or sinks of potentially toxic elements were assessed. Samples from different layers varied in their abilities to raise the pH of rainwater applied at pH 3.5 and 4.3, and this was reflected in the amounts of metals mobilised by the rainwater as it percolated through the soil column. Material from the top two layers of the pit released cadmium, copper, manganese, lead, nickel and zinc to the aqueous phase, but the lower layers, with higher buffering capacity, were able to resist acidification even when the equivalent of 12 months' rainfall (western UK) was applied. Column sorption experiments confirmed the ability of material from layer 4 (48–50 cm) to take up copper, manganese and zinc. Metals were determined in the leachates by flame and electrothermal atomic absorption spectrometry and principle anions by ion chromatography.",
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Column leaching and sorption experiments to assess the mobility of potentially toxic elements in industrially contaminated land. / Anderson, Peter; Davidson, Christine; Duncan, A L; Littlejohn, D; Ure, Allan M.; Garden, L M.

In: Journal of Environmental Monitoring, Vol. 2, No. 3, 2000, p. 234-239.

Research output: Contribution to journalArticle

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AU - Garden, L M

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AB - Made-up ground collected from layers of a trial pit excavated on a former industrial site was treated with artificial rainwater in a series of column leaching and sorption experiments. Metal mobility and the ability of various layers of material obtained from the pit to act as sources or sinks of potentially toxic elements were assessed. Samples from different layers varied in their abilities to raise the pH of rainwater applied at pH 3.5 and 4.3, and this was reflected in the amounts of metals mobilised by the rainwater as it percolated through the soil column. Material from the top two layers of the pit released cadmium, copper, manganese, lead, nickel and zinc to the aqueous phase, but the lower layers, with higher buffering capacity, were able to resist acidification even when the equivalent of 12 months' rainfall (western UK) was applied. Column sorption experiments confirmed the ability of material from layer 4 (48–50 cm) to take up copper, manganese and zinc. Metals were determined in the leachates by flame and electrothermal atomic absorption spectrometry and principle anions by ion chromatography.

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