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Revista de Chimie (Rev. Chim.), Year 2008, Volume 59, Issue 7,

https://doi.org/10.37358/RC.08.7.1894

Mihaiela Andoni, Aurel Iovi, Petru Negrea, Lavinia Lupa, Adina Negrea, Mihaela Ciopec

Mercury Removing from the Contamined Soil Using KI Solution. The pH Influence

Abstract:

This paper presents an experimental work regarding the optimal conditions of pH for removing mercury from a contaminated soil sample using 0,1M solution of KI. A test stand with a column packed with contaminated soil has been done. A KI solution with neutral pH passes through the column, then a KI solution with acidic pH passes through another similar column and a KI solution with basic pH through the third column. It was collected periodically 10 mL fraction volume. The extracted mercury concentration from the solution is determined by atomic absorption spetrophotometry The results shows that the optimal conditions for cleaning the soil are using an acidic KI solution with a pH = 1, 5 ΒΈ 2 and 150 mL of KI solution meaning 15 fractions of 10 mL each.

Keywords:
mercury; acidic potassium iodide; atomic absorbtion spectrophotometer

Issue: 2008, Volume 59, Issue 7
Pages:
Publication date: 2008/8/9
https://doi.org/10.37358/RC.08.7.1894
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