Probabilistic performance-assessment modeling of the mixed waste landfill at Sandia National Laboratories.

Peace, Gerald (Jerry) L. (.) ; Goering, Timothy James (GRAM, Inc.) ; Miller, Mark Laverne ; Ho, Clifford Kuofei

Sandia National Laboratories

关键词: Radioactive Waste Facilities;    Americium 241;    Sanitary Landfills;    Organic Compounds;    Mathematical Models;   

DOI  :  10.2172/902560
RP-ID  :  SAND2007-0170
RP-ID  :  AC04-94AL85000
RP-ID  :  902560

美国|英语

来源: UNT Digital Library

【 摘 要 】

A probabilistic performance assessment has been conducted to evaluate the fate and transport of radionuclides (americium-241, cesium-137, cobalt-60, plutonium-238, plutonium-239, radium-226, radon-222, strontium-90, thorium-232, tritium, uranium-238), heavy metals (lead and cadmium), and volatile organic compounds (VOCs) at the Mixed Waste Landfill (MWL). Probabilistic analyses were performed to quantify uncertainties inherent in the system and models for a 1,000-year period, and sensitivity analyses were performed to identify parameters and processes that were most important to the simulated performance metrics. Comparisons between simulated results and measured values at the MWL were made to gain confidence in the models and perform calibrations when data were available. In addition, long-term monitoring requirements and triggers were recommended based on the results of the quantified uncertainty and sensitivity analyses.