Identification and treatment of lithium as the primary toxicant in a groundwater treatment facility effluent

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{sup 6}Li is used in manufacturing nuclear weapons, shielding, and reactor control rods. Li compounds have been used at DOE facilities and Li-contaminated waste has historically been land disposed. Seep water from burial grounds near Y-12 contain small amounts of chlorinated hydrocarbons, traces of PCBs, and 10-19 mg/L Li. Seep treatment consists of oil-water separation, filtration, air stripping, and carbon adsorption. Routine biomonitoring tests using fathead minnows and {ital Ceriodaphnia}{ital dubia} are conducted. Evaluation of suspected contaminants revealed that toxicity was most likely due to Li. Laboratory tests showed that 1 mg Li/L reduced the survival of both species; 0.5 ... continued below

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12 p.

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Kszos, L.A. & Crow, K.R. October 1, 1996.

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  • Kszos, L.A. Oak Ridge National Lab., TN (United States)
  • Crow, K.R. Oak Ridge Y-12 Plant, TN (United States)

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Description

{sup 6}Li is used in manufacturing nuclear weapons, shielding, and reactor control rods. Li compounds have been used at DOE facilities and Li-contaminated waste has historically been land disposed. Seep water from burial grounds near Y-12 contain small amounts of chlorinated hydrocarbons, traces of PCBs, and 10-19 mg/L Li. Seep treatment consists of oil-water separation, filtration, air stripping, and carbon adsorption. Routine biomonitoring tests using fathead minnows and {ital Ceriodaphnia}{ital dubia} are conducted. Evaluation of suspected contaminants revealed that toxicity was most likely due to Li. Laboratory tests showed that 1 mg Li/L reduced the survival of both species; 0.5 mg Li/L reduced {ital Ceriodaphnia} reproduction and minnow growth. However, the toxicity was greatly reduced in presence of sodium (up to 4 mg Li/L, Na can fully negate the toxic effect of Li). Because of the low Na level discharged from the treatment facility, Li removal from the ground water was desired. SuperLig{reg_sign} columns were used (Li-selective organic macrocycle bonded to silica gel). Bench-scale tests showed that the material was very effective for removing Li from the effluent, reducing the toxicity.

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12 p.

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INIS; OSTI as DE96014602

Source

  • WEFTEC `96: Water Environment Federation meeting, Dallas, TX (United States), 5-8 Oct 1996

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  • Other: DE96014602
  • Report No.: CONF-9610177--1
  • Grant Number: AC05-84OR21400;AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 405727
  • Archival Resource Key: ark:/67531/metadc684463

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  • October 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 19, 2016, 3:41 p.m.

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Kszos, L.A. & Crow, K.R. Identification and treatment of lithium as the primary toxicant in a groundwater treatment facility effluent, article, October 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc684463/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.