Vapor-Liquid Partitioning of Methylmercury Compounds: Fundamental Data to Support the Savannah River Site Liquid Waste System: Henry's Law, Solubility and Vapor Pressure Determination for Representative Methylmercury Compounds
- Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL)
The Savannah River Site (SRS) Liquid Waste System (LWS) contains approximately 66 tons of mercury within the liquids, salts, and sludges that are currently being processed into final wasteforms for disposal. Mercury concentrations within the system exceed those typically experienced in environmental or industrial systems; thus, management of mercury compounds continues to be a priority for SRS. In the LWS, waste is vitrified into a borosilicate glass wasteform that contains most of the radioactivity, while the lower activity solutions are dispositioned in a low-level grout wasteform, or “saltstone”. The alkaline, high ionic strength caustic wastes are pumped, evaporated, and otherwise managed throughout the LWS and Defense Waste Processing Facility (DWPF) as they are stored and prepared for conversion to the final wasteforms. Because of the complexity of this system, a key component of effective mercury management in the LWS requires analysis of mercury in various physical phases. The high concentration of mercury within the SRS LWS has the potential to generate vapor-phase contamination. Elemental mercury (Hg0), dimethylmercury ((CH3)2Hg), and methylmercury (CH3Hg+) are among species known or suspected to contribute to the flux of mercury from liquid to vapor phase (Iverfeldt and Lindquist, 1982). Chemical speciation affects not only mercury behavior in LWS operations but may also affect the performance of mercury treatment and removal technologies in the LWS.
- Research Organization:
- Savannah River National Lab (SRNL), Aiken, SC (United States); Savannah River Site (SRS), Aiken, SC (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Management (EM)
- DOE Contract Number:
- AC09-08SR22470
- OSTI ID:
- 1804664
- Report Number(s):
- SRNL-STI--2020-00407
- Country of Publication:
- United States
- Language:
- English
Similar Records
Innovative mercury treatment technology options for the liquid waste system at the Savannah River Site: scoping studies
Review of Mercury Sequestration in Cementitious Waste Forms
Methylmercury and Ethylmercury Analytical Performance in SRR Samples Measured by SRNL and Eurofins Frontier Global Sciences
Technical Report
·
Tue Nov 17 23:00:00 EST 2020
·
OSTI ID:1734663
Review of Mercury Sequestration in Cementitious Waste Forms
Technical Report
·
Thu Nov 30 23:00:00 EST 2023
·
OSTI ID:2319024
Methylmercury and Ethylmercury Analytical Performance in SRR Samples Measured by SRNL and Eurofins Frontier Global Sciences
Technical Report
·
Mon Jul 01 00:00:00 EDT 2019
·
OSTI ID:1557972