Thermodynamic Modeling of the SRS Evaporators: Part I. The 2H and 2F System

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Accumulations of two solid phases occurred in the Savanah River Site (SRS) 2H-Evaporator system since late 1996. The aluminosilicate scale deposits caused the evaporator to become inoperable in October 1999. Accumulations of the diuranate phase have caused criticality concerns in the SRS 2H-Evaporator. In this study, thermodynamically derived activity diagrams, also known as stability diagrams, are developed from historic analytic data from the SRS 2H-Evaporator system feed tank (Tank 43H) and drop tank (Tank 38H) in order to understand the tank chemistry conditions that caused the scale formation in the 2H-Evaporator. The SRS 2F-Evaporator system, which is not precipitating aluminosilicate ... continued below

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Jantzen, C. M. May 2, 2002.

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Accumulations of two solid phases occurred in the Savanah River Site (SRS) 2H-Evaporator system since late 1996. The aluminosilicate scale deposits caused the evaporator to become inoperable in October 1999. Accumulations of the diuranate phase have caused criticality concerns in the SRS 2H-Evaporator. In this study, thermodynamically derived activity diagrams, also known as stability diagrams, are developed from historic analytic data from the SRS 2H-Evaporator system feed tank (Tank 43H) and drop tank (Tank 38H) in order to understand the tank chemistry conditions that caused the scale formation in the 2H-Evaporator. The SRS 2F-Evaporator system, which is not precipitating aluminosilicate solids, is modeled for comparison.

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  • Other Information: PBD: 2 May 2002

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  • Report No.: WSRC-TR-2000-00293, Rev. 1
  • Grant Number: AC09-96SR18500
  • DOI: 10.2172/799736 | External Link
  • Office of Scientific & Technical Information Report Number: 799736
  • Archival Resource Key: ark:/67531/metadc742762

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  • May 2, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • May 5, 2016, 5:35 p.m.

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Jantzen, C. M. Thermodynamic Modeling of the SRS Evaporators: Part I. The 2H and 2F System, report, May 2, 2002; South Carolina. (digital.library.unt.edu/ark:/67531/metadc742762/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.