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Title: Evaluation of Iodine Remediation Technologies in Subsurface Sediments: Interim Status Report

Abstract

Isotopes of iodine were generated during plutonium production from nine production reactors at the U.S. Department of Energy Hanford Site. The long half-life 129I generated at the Hanford Site during reactor operations was 1) stored in single-shell and double-shell tanks, 2) discharged to liquid disposal sites (e.g., cribs and trenches), 3) released to the atmosphere during fuel reprocessing operations, or 4) captured by off-gas absorbent devices (silver reactors) at chemical separations plants (PUREX, B-Plant, T-Plant, and REDOX). Releases of 129I to the subsurface have resulted in several large, though dilute, plumes in the groundwater, including the plume in the 200-UP-1 operable unit. There is also 129I remaining in the vadose zone beneath disposal or leak locations. Because 129I is an uncommon contaminant, relevant remediation experience and scientific literature are limited.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1418095
Report Number(s):
PNNL-26957
830403000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Strickland, Christopher E., Lawter, Amanda R., Qafoku, Nikolla, Szecsody, James E., Truex, Michael J., and Wang, Guohui. Evaluation of Iodine Remediation Technologies in Subsurface Sediments: Interim Status Report. United States: N. p., 2017. Web. doi:10.2172/1418095.
Strickland, Christopher E., Lawter, Amanda R., Qafoku, Nikolla, Szecsody, James E., Truex, Michael J., & Wang, Guohui. Evaluation of Iodine Remediation Technologies in Subsurface Sediments: Interim Status Report. United States. https://doi.org/10.2172/1418095
Strickland, Christopher E., Lawter, Amanda R., Qafoku, Nikolla, Szecsody, James E., Truex, Michael J., and Wang, Guohui. 2017. "Evaluation of Iodine Remediation Technologies in Subsurface Sediments: Interim Status Report". United States. https://doi.org/10.2172/1418095. https://www.osti.gov/servlets/purl/1418095.
@article{osti_1418095,
title = {Evaluation of Iodine Remediation Technologies in Subsurface Sediments: Interim Status Report},
author = {Strickland, Christopher E. and Lawter, Amanda R. and Qafoku, Nikolla and Szecsody, James E. and Truex, Michael J. and Wang, Guohui},
abstractNote = {Isotopes of iodine were generated during plutonium production from nine production reactors at the U.S. Department of Energy Hanford Site. The long half-life 129I generated at the Hanford Site during reactor operations was 1) stored in single-shell and double-shell tanks, 2) discharged to liquid disposal sites (e.g., cribs and trenches), 3) released to the atmosphere during fuel reprocessing operations, or 4) captured by off-gas absorbent devices (silver reactors) at chemical separations plants (PUREX, B-Plant, T-Plant, and REDOX). Releases of 129I to the subsurface have resulted in several large, though dilute, plumes in the groundwater, including the plume in the 200-UP-1 operable unit. There is also 129I remaining in the vadose zone beneath disposal or leak locations. Because 129I is an uncommon contaminant, relevant remediation experience and scientific literature are limited.},
doi = {10.2172/1418095},
url = {https://www.osti.gov/biblio/1418095}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2017},
month = {Fri Sep 01 00:00:00 EDT 2017}
}