Contaminant Release Data Package for Residual Waste in Single-Shell Hanford Tanks

Deutsch, William J. ; Cantrell, Kirk J. ; Krupka, Kenneth M.

Pacific Northwest National Laboratory (U.S.)

关键词: Technetium 99;    Alpha-Bearing Wastes;    Uranium;    Water Influx;    Nitrates;   

DOI  :  10.2172/921261
RP-ID  :  PNNL-16748
RP-ID  :  AC05-76RL01830
RP-ID  :  921261

美国|英语

来源: UNT Digital Library

【 摘 要 】

The Hanford Federal Facility Agreement and Consent Order requires that a Resource Conservation and Recovery Act (RCRA) Facility Investigation report be submitted to the Washington State Department of Ecology. The RCRA Facility Investigation report will provide a detailed description of the state of knowledge needed for tank farm performance assessments. This data package provides detailed technical information about contaminant release from closed single-shell tanks necessary to support the RCRA Facility Investigation report. It was prepared by Pacific Northwest National Laboratory (PNNL) for CH2M HILL Hanford Group, Inc., which is tasked by the U.S. Department of Energy (DOE) with tank closure. This data package is a compilation of contaminant release rate data for residual waste in the four Hanford single-shell tanks (SSTs) that have been tested (C-103, C-106, C-202, and C-203). The report describes the geochemical properties of the primary contaminants of interest from the perspective of long-term risk to groundwater (uranium, technetium-99, iodine-129, chromium, transuranics, and nitrate), the occurrence of these contaminants in the residual waste, release mechanisms from the solid waste to water infiltrating the tanks in the future, and the laboratory tests conducted to measure release rates.