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Title: Decision document low-level waste feed staging strategy

Abstract

This report documents the decision to use the Indirect Staging- As Soon As Possible feed staging strategy to deliver supernate feed to the private low-activity waste contractors during Phase I of TWRS Privatization. Two double-shell tanks are needed for intermediate feed staging tanks in addition to the two double-shell tanks that will be turned over to the private contractors as feed tanks. This report was originally issued on May 7, 1996, by Phil M. Daling of Pacific Northwest National Laboratory as an unnumbered report. It is being released as a supporting document so that others can search for and find this report. Its original citation was: WHC, 1996, Decision Document, Low-Level Waste Feed Staging Strategy, May 7, 1996.

Authors:
Publication Date:
Research Org.:
Westinghouse Hanford Co., Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
OSTI Identifier:
331630
Report Number(s):
WHC-SD-WM-TI-788
ON: DE98058998; BR: EW3130010; TRN: 96001049
DOE Contract Number:
AC06-96RL13200
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 7 Oct 1996
Country of Publication:
United States
Language:
English
Subject:
05 NUCLEAR FUELS; LOW-LEVEL RADIOACTIVE WASTES; TANKS; DELIVERY

Citation Formats

Certa, P.J. Decision document low-level waste feed staging strategy. United States: N. p., 1996. Web. doi:10.2172/331630.
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Certa, P.J. Decision document low-level waste feed staging strategy. United States. doi:10.2172/331630.
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Certa, P.J. Mon . "Decision document low-level waste feed staging strategy". United States. doi:10.2172/331630. https://www.osti.gov/servlets/purl/331630.
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@article{osti_331630,
title = {Decision document low-level waste feed staging strategy},
author = {Certa, P.J.},
abstractNote = {This report documents the decision to use the Indirect Staging- As Soon As Possible feed staging strategy to deliver supernate feed to the private low-activity waste contractors during Phase I of TWRS Privatization. Two double-shell tanks are needed for intermediate feed staging tanks in addition to the two double-shell tanks that will be turned over to the private contractors as feed tanks. This report was originally issued on May 7, 1996, by Phil M. Daling of Pacific Northwest National Laboratory as an unnumbered report. It is being released as a supporting document so that others can search for and find this report. Its original citation was: WHC, 1996, Decision Document, Low-Level Waste Feed Staging Strategy, May 7, 1996.},
doi = {10.2172/331630},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 07 00:00:00 EDT 1996},
month = {Mon Oct 07 00:00:00 EDT 1996}
}
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Technical Report:
View Technical Report (1.49 MB)
DOI:  10.2172/331630
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  • A Preliminary Low-Level Waste Feed Staging Plan was prepared. The plan supports the Phase I privatization effort by providing recommendations that may influence the technical content of the final request for proposal, and the interface control documents for the turnover of two double-shell tanks (DST) to the private contractors for use as feed tanks and the transfer of supernate to these tanks. Additionally, the preliminary schedule of feed staging activities will be useful to both RL and the private bidders during the contract negotiation period. A revised feed staging plan will be issued in August 1996 reflecting anticipated changes inmore » the request for proposal, resolution of issues identified in this report, and completion of additional work scope.« less

  • ; ; ; ...
    The `Preliminary Low-Level Waste Feed Staging Plan` was updated to reflect the latest requirement in the Tank Waste Remediation Privatization Request for Proposals (RFP) and amendments. The updated plan develops the sequence and transfer schedule for retrieval of DST supernate by the management and integration contractor and delivery of the staged supernate to the private low-activity waste contractors for treatment. Two DSTs are allocated as intermediate staging tanks. A transfer system conflict analysis provides part of the basis for determining transfer system upgrade requirements to support both low-activity and high-level waste feed delivery. The intermediate staging tank architecture and retrievalmore » system equipment are provided as a planning basis until design requirements documents are prepared. The actions needed to successfully implement the plan are identified. These include resolution of safety issues and changes to the feed envelope limits, minimum order quantities, and desired batch sizes.« less

  • This report documents the preferred approach (retrieval strategy) to prepare and transfer waste from low-activity waste source tanks containing soluble solids (Tanks 241-AN-103, 241-AN-104, 241-AN-105 and 241-AW-101) to the vitrification plant. Several opportunities to further refine the selected retrieval strategy were identified; these were recommended for follow-on studies.

  • ;
    Ten basic contracting strategies were developed after a review of past strategies that had been used at the Hanford Site, other US Department of Energy (DOE) sites, other US government agencies, and in the private sector. As applicable to the Low-Level Waste Vitrification Plant (LLWVP) Project, each strategy was described and depicted in a schedule format to assess compatibility with the Hanford Federal Facility Agreement and Consent Order, al so known as the Tri-Party Agreement (Ecology et al. 1994) milestones, key decision points, and other project requirements. The-pro and con aspects of each strategy also were tabulated. Using this informationmore » as a basis, the LLWVP Project team members, along with representatives of Tank Waste Remediation System (TWRS) Engineering, TWRS Programs, and Procurement Materials Management, formed a Westinghouse Hanford Company (WHC) evaluation team to select the best strategy. Kepner-Tregoe decision analysis techniques were used in facilitated meetings to arrive at the best balanced choice.« less

  • This document updates the planning basis for the U.S. Department of Energy (DOE) to provide a sufficient quantity of high-level waste (HLW) feed to the privatization contractor during Phase I. The DOE has sufficient HLW feed to satisfy the minimum order quantity and, with the transfer system upgrades recommended by Galbraith (1996), the means to provide the feed to the private contractor`s facility during Phase I. Assuming the planned DST retrieval system (two 300-hp mixer pumps), the total sludge available as feed for Waste Envelope D is at least 130 percent of the minimum order quantity specified in the RFP,more » assuming dilute caustic washing. However, additional sources of feed will need to be identified to support the optional extension of HLW processing in Phase I. The maximum HLW sludge inventory available in the three DSTs identified for Phase I is less 1514 than the maximum order quantity (460 MT versus 465 MT). Assuming the anticipated efficiencies of the DST retrieval systems are achieved, the amount of waste available for feed would only be 70 to 80 percent of the maximum order quantity.« less