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Title: TANK WASTE RETRIEVAL LESSONS LEARNED AT THE HANFORD SITE

Abstract

One of the environmental remediation challenges facing the nation is the retrieval and permanent disposal of approximately 90 million gallons of radioactive waste stored in underground tanks at the US Department of Energy (DOE) facilities. The Hanford Site is located in southeastern Washington State and stores roughly 60% of this waste. An estimated 53 million gallons of high-level, transuranic, and low-level radioactive waste is stored underground in 149 single-shell tanks (SSTs) and 28 newer double-shell tanks (DSTs) at the Hanford Site. These SSTs range in size from 55,000 gallons to 1,000,000 gallon capacity. Approximately 30 million gallons of this waste is stored in SSTs. The SSTs were constructed between 1943 and 1964 and all have exceeded the nominal 20-year design life. Sixty-seven SSTs are known or suspected to have leaked an estimated 1,000,000 gallons of waste. The risk of additional SST leakage has been greatly reduced by removing more than 3 million gallons of interstitial liquids and supernatant and transferring the waste to the DST system since 1997 as part of the interim stabilization program. Retrieval of SST saltcake and sludge waste is underway to further reduce risks and stage feed materials for the Hanford Site Waste Treatment Plant. Thismore » paper presents lessons learned from retrieval of tank waste at the Hanford Site and discusses how this information is used to optimize retrieval system efficiency, improve overall cost effectiveness of retrieval operations, and ensure that HFFACO requirements are met.« less

Authors:
Publication Date:
Research Org.:
Hanford Site (HNF), Richland, WA
Sponsoring Org.:
USDOE - Office of Environmental Management (EM)
OSTI Identifier:
875787
Report Number(s):
RPP-28642-FP Rev 0
TRN: US0600773
DOE Contract Number:  
DE-AC27-99RL14047
Resource Type:
Conference
Resource Relation:
Conference: WM'06 CONFERENCE 02/26/2006 THRU 03/02/2006 TUCSON, AZ
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CAPACITY; DESIGN; EFFICIENCY; INTERSTITIALS; LOW-LEVEL RADIOACTIVE WASTES; RADIOACTIVE WASTES; SLUDGES; STABILIZATION; TANKS; WASTE PROCESSING; WASTE RETRIEVAL; WASTES

Citation Formats

DODD, R.A.. TANK WASTE RETRIEVAL LESSONS LEARNED AT THE HANFORD SITE. United States: N. p., 2006. Web.
DODD, R.A.. TANK WASTE RETRIEVAL LESSONS LEARNED AT THE HANFORD SITE. United States.
DODD, R.A.. Tue . "TANK WASTE RETRIEVAL LESSONS LEARNED AT THE HANFORD SITE". United States. doi:. https://www.osti.gov/servlets/purl/875787.
@article{osti_875787,
title = {TANK WASTE RETRIEVAL LESSONS LEARNED AT THE HANFORD SITE},
author = {DODD, R.A.},
abstractNote = {One of the environmental remediation challenges facing the nation is the retrieval and permanent disposal of approximately 90 million gallons of radioactive waste stored in underground tanks at the US Department of Energy (DOE) facilities. The Hanford Site is located in southeastern Washington State and stores roughly 60% of this waste. An estimated 53 million gallons of high-level, transuranic, and low-level radioactive waste is stored underground in 149 single-shell tanks (SSTs) and 28 newer double-shell tanks (DSTs) at the Hanford Site. These SSTs range in size from 55,000 gallons to 1,000,000 gallon capacity. Approximately 30 million gallons of this waste is stored in SSTs. The SSTs were constructed between 1943 and 1964 and all have exceeded the nominal 20-year design life. Sixty-seven SSTs are known or suspected to have leaked an estimated 1,000,000 gallons of waste. The risk of additional SST leakage has been greatly reduced by removing more than 3 million gallons of interstitial liquids and supernatant and transferring the waste to the DST system since 1997 as part of the interim stabilization program. Retrieval of SST saltcake and sludge waste is underway to further reduce risks and stage feed materials for the Hanford Site Waste Treatment Plant. This paper presents lessons learned from retrieval of tank waste at the Hanford Site and discusses how this information is used to optimize retrieval system efficiency, improve overall cost effectiveness of retrieval operations, and ensure that HFFACO requirements are met.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 17 00:00:00 EST 2006},
month = {Tue Jan 17 00:00:00 EST 2006}
}

Conference:
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