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Title: Tank 241-AN-107 Study for Semi-Volatile Organics in 2017 Grab Samples and Carbonation of Composite for Solids Precipitation and Caustic Demand

Abstract

Tank 241-AN-107 waste is known to contain high concentrations of complexing organics, and caustic sodium hydroxide has been added due to depleted free hydroxide in the waste. Eight grab samples were taken in August 2017 for routine chemical analyses. Investigations of the tank’s organic contents and solids precipitation at lower pH levels by CO2 gas, as well as the performance of caustic demand testing at lower pH ranges were examined. Sub-micron particles were visible, suspended in the supernate, using scanning electron microscopy. Trace amounts of precipitation floating on the surface of the supernate were observed and were collected with the surface liquid samples for investigation.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Hanford Site (HNF), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM)
OSTI Identifier:
1547055
Report Number(s):
RPP-RPT-61588, Rev. 0
DOE Contract Number:  
DE-AC27-08RV14800
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
AN-107 composite supernate, semi-volatile organics, small organic acids, surface liquid samples, CO2 carbonation, solid precipitation, caustic demand, SEM, PLM, XRD

Citation Formats

Meznarich, Huei K., Bolling, Stacey D., Ely, Thomas M., Lachut, James S., and Cooke, Gary A. Tank 241-AN-107 Study for Semi-Volatile Organics in 2017 Grab Samples and Carbonation of Composite for Solids Precipitation and Caustic Demand. United States: N. p., 2019. Web. doi:10.2172/1547055.
Meznarich, Huei K., Bolling, Stacey D., Ely, Thomas M., Lachut, James S., & Cooke, Gary A. Tank 241-AN-107 Study for Semi-Volatile Organics in 2017 Grab Samples and Carbonation of Composite for Solids Precipitation and Caustic Demand. United States. doi:10.2172/1547055.
Meznarich, Huei K., Bolling, Stacey D., Ely, Thomas M., Lachut, James S., and Cooke, Gary A. Fri . "Tank 241-AN-107 Study for Semi-Volatile Organics in 2017 Grab Samples and Carbonation of Composite for Solids Precipitation and Caustic Demand". United States. doi:10.2172/1547055. https://www.osti.gov/servlets/purl/1547055.
@article{osti_1547055,
title = {Tank 241-AN-107 Study for Semi-Volatile Organics in 2017 Grab Samples and Carbonation of Composite for Solids Precipitation and Caustic Demand},
author = {Meznarich, Huei K. and Bolling, Stacey D. and Ely, Thomas M. and Lachut, James S. and Cooke, Gary A.},
abstractNote = {Tank 241-AN-107 waste is known to contain high concentrations of complexing organics, and caustic sodium hydroxide has been added due to depleted free hydroxide in the waste. Eight grab samples were taken in August 2017 for routine chemical analyses. Investigations of the tank’s organic contents and solids precipitation at lower pH levels by CO2 gas, as well as the performance of caustic demand testing at lower pH ranges were examined. Sub-micron particles were visible, suspended in the supernate, using scanning electron microscopy. Trace amounts of precipitation floating on the surface of the supernate were observed and were collected with the surface liquid samples for investigation.},
doi = {10.2172/1547055},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}