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Title: NACE Corrosion 2015 Hanford Review of Double-Shell Tank Construction History

Authors:
;
Publication Date:
Research Org.:
Hanford Site (HNF), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Environmental Management (EM)
OSTI Identifier:
1169950
Report Number(s):
TOC-PRES-15-0436-VA Rev 0
DOE Contract Number:
DE-AC27-08RV14800
Resource Type:
Conference
Resource Relation:
Conference: NACE Corrosion 2015, NACE International 03/16/2015 Dallas TX
Country of Publication:
United States
Language:
English

Citation Formats

Gunter, Jason R., and Baide, Daniel G.. NACE Corrosion 2015 Hanford Review of Double-Shell Tank Construction History. United States: N. p., 2015. Web.
Gunter, Jason R., & Baide, Daniel G.. NACE Corrosion 2015 Hanford Review of Double-Shell Tank Construction History. United States.
Gunter, Jason R., and Baide, Daniel G.. Thu . "NACE Corrosion 2015 Hanford Review of Double-Shell Tank Construction History". United States. doi:. https://www.osti.gov/servlets/purl/1169950.
@article{osti_1169950,
title = {NACE Corrosion 2015 Hanford Review of Double-Shell Tank Construction History},
author = {Gunter, Jason R. and Baide, Daniel G.},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Feb 05 00:00:00 EST 2015},
month = {Thu Feb 05 00:00:00 EST 2015}
}

Conference:
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  • During routine visual inspections of Hanford double-shell waste tank 241-AY-102 (AY-102), anomalies were identified on the annulus floor which resulted in further evaluations. Following a formal leak assessment in October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of AY-102 was leaking. The formal leak assessment, documented in RPP-ASMT-53793,Tank 241-AY-102 Leak Assessment Report, identified first-of-a-kind construction difficulties and trial-and-error repairs as major contributing factors to tank failure. To determine if improvements in double-shell tank (DST) construction occurred after construction of tank AY-102, a detailed review and evaluation of historical construction records were performed for the firstmore » three DST tank farms constructed, which included tanks 241-AY-101, 241-AZ-101, 241-AZ-102, 241-SY-101, 241-SY-102, and 241-SY-103. The review for these six tanks involved research and review of dozens of boxes of historical project documentation. These reviews form a basis to better understand the current condition of the three oldest Hanford DST farms. They provide a basis for changes to the current tank inspection program and also provide valuable insight into future tank use decisions. If new tanks are constructed in the future, these reviews provide valuable "lessons-learned" information about expected difficulties as well as construction practices and techniques that are likely to be successful.« less
  • High-level nuclear wastes at the Hanford site are stored underground in carbon steel double-shell and single-shell tanks (DSTs and SSTs). The installation of a prototype corrosion monitoring instrument tree into DST 241-A-101 was completed in December 1995. The instrument tree has the ability to detect and discriminate between uniform corrosion, pitting, and stress corrosion cracking (SCC) through the use of electrochemical noise measurements and a unique stressed element, three-electrode probe. The tree itself is constructed of AISI 304L stainless steel (UNS S30403), with probes in the vapor space, vapor/liquid interface and liquid. Successful development of these trees will allow theirmore » application to single shell tanks and the transfer of technology to other US Department of Energy (DOE) sites. Keywords: Hanford, radioactive waste, high-level waste tanks, electrochemical noise, probes, double-shell tanks, single-shell tanks, corrosion.« less
  • This paper reports on the electrochemical scans for the supernatant of Hanford double-shell tank (DST) 241-SY-102 and the electrochemical scans for the bottom saltcake layer for Hanford DST 241-AZ-102. It further reports on the development of electrochemical test cells adapted to both sample volume and hot cell constraints.
  • This paper reports on the electrochemical scans for the supernatant of Hanford double shell tank 241-SY-102 and the electrochemical scans for the bottom saltcake layer for Hanford double shell tank 241-AZ-102. It further reports on the development of electrochemical test cells adapted to both sample volume and hot cell constraints.