The effect of iodide and pH on the adsorption of mercury(II) to illite

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Effect of I{sup -} concentration on mobility of Hg(II) in clay suspensions was studied over an environmentally significant pH range. The addition of I{sup -} decreased the adsorption of Hg(II), except at very low (50 {mu}g/L) I{sup -} concentrations. In suspensions of greater I{sup -} concentration (1.5 and 50 mg/L). Hg(II) adsorption increased with pH, presumably due to formation of Hg-OH complexes; at low concentrations, Hg(II) adsorption decreased with pH, presumably due to competition from hydrocomplexes for surface adsorption sites. I{sup -} was an effective extractant for Hg(II), outperforming all other halides in extraction efficiency.

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9 p.

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Hamilton, W.P.; Ghosh, M.M. & Turner, R.R. December 31, 1994.

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Effect of I{sup -} concentration on mobility of Hg(II) in clay suspensions was studied over an environmentally significant pH range. The addition of I{sup -} decreased the adsorption of Hg(II), except at very low (50 {mu}g/L) I{sup -} concentrations. In suspensions of greater I{sup -} concentration (1.5 and 50 mg/L). Hg(II) adsorption increased with pH, presumably due to formation of Hg-OH complexes; at low concentrations, Hg(II) adsorption decreased with pH, presumably due to competition from hydrocomplexes for surface adsorption sites. I{sup -} was an effective extractant for Hg(II), outperforming all other halides in extraction efficiency.

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9 p.

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OSTI as DE96009630

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  • International conference on mercury as a global pollutant, Whistler (Canada), 10-14 Jul 1994

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  • Other: DE96009630
  • Report No.: CONF-940729--3
  • Grant Number: AC05-84OR21400;FC05-92OR22056
  • Office of Scientific & Technical Information Report Number: 229354
  • Archival Resource Key: ark:/67531/metadc670206

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Office of Scientific & Technical Information Technical Reports

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  • December 31, 1994

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  • June 29, 2015, 9:42 p.m.

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  • May 2, 2016, 3:47 p.m.

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Hamilton, W.P.; Ghosh, M.M. & Turner, R.R. The effect of iodide and pH on the adsorption of mercury(II) to illite, article, December 31, 1994; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc670206/: accessed May 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.