Low-level mercury removal from groundwater using a synthetic chelating ligand

Lisa Y. Blue, Mike A. Van Aelstyn, Matthew Matlock, David A. Atwood

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Mercury is present in many industrial processes at low concentrations and is a cause for concern due to the propensity for mercury to bioaccumulate. As a cumulative toxin, introduction of mercury into the environment at any level has the potential to adversely affect ecologic systems. To date, no commercial precipitants are available that can irreversibly and permanently bind mercury. In the current work, selected commercial reagents were compared alongside the dianionic ligand 1,3-benzenediamidoethanethiolate (BDET2-) to test the feasibility of low-level (parts-per-billion, ppb) mercury treatment for groundwater near a chloralkali plant. Of all the reagents examined, only K2BDET was capable of reducing mercury concentrations to below instrumental detection limits of 0.05 ppb with the added benefit of producing a stable precipitate.

Original languageEnglish
Pages (from-to)2025-2028
Number of pages4
JournalWater Research
Volume42
Issue number8-9
DOIs
StatePublished - Apr 2008

Keywords

  • Chloralkali
  • Mercury
  • Non-leaching precipitates
  • ppb removal

ASJC Scopus subject areas

  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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