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Title: Mercury in aqueous tank waste at the Savannah River Site: Facts, forms, and impacts

Over the past two years, there has been an intense effort to understand the chemistry of mercury across the Savannah River Site’s high-level liquid waste system to determine the impacts of various mercury species. This effort started after high concentrations of mercury were measured in the leachates from a toxicity characteristic leaching procedure (TCLP) test on the low-level cementitious waste form produced in the Savannah River Saltstone facility. Speciation showed the dominant form of leached mercury to be the methylmercury cation. Neither the source of the methylmercury nor its concentration in the Saltstone feed was well established at the time of the testing. Finally, this assessment of mercury was necessary to inform points in the process operations that may be subject to new separation technologies for the removal of mercury.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [2] ;  [1]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
  2. Savannah River Remediation, LLC, Aiken, SC (United States)
  3. Eurofins Frontier Global Sciences, Bothell, WA (United States)
Publication Date:
Report Number(s):
SRNL-STI-2016-00630
Journal ID: ISSN 0149-6395
Grant/Contract Number:
AC09-08SR22470
Type:
Accepted Manuscript
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Name: Separation Science and Technology; Journal ID: ISSN 0149-6395
Publisher:
Taylor & Francis
Research Org:
Savannah River Site (SRS), Aiken, SC (United States); Savannah River Remediation, LLC, Aiken, SC (United States)
Sponsoring Org:
USDOE Office of Environmental Management (EM)
Contributing Orgs:
Eurofins Frontier Global Sciences, Bothell, WA (United States)
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; HLW; mercury; speciation; SRS
OSTI Identifier:
1362268