Remediation of lead contaminated soil by column extraction with EDTA: II. Modeling

Z. Samani, S. Hu, A. T. Hanson, D. M. Heil

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Lead contamination of soils is a common problem throughout the world. Laboratory batch test and bench scale experiments have shown that EDTA can be used to remove lead from contaminated soils. However, due to the high cost and laborious task associated with actual environmental remediation of a lead contaminated soil, there is a need to be able to predict the outcome of a remediation process in advance in order to optimize the process and minimize the cost. This paper describes the development and validation of a computer model which can be used to simulate the removal of lead from a contaminated soil column using EDTA as the chelating agent. The model is able to simulate the lead removal from soil based on equilibrium as well as kinetic dissolution of Pb. The comparison of the simulated results with actual lead concentrations both in effluent and soil shows that the model can predict the lead removal process with reasonable accuracy.

Original languageEnglish (US)
Pages (from-to)221-238
Number of pages18
JournalWater, Air, and Soil Pollution
Volume102
Issue number3-4
DOIs
StatePublished - Mar 1998

Keywords

  • Contaminated
  • EDTA
  • Lead
  • Soil

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