Mobile X-ray imaging systems for the tank waste characterization project at the Hanford site

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Description

Stored waste tank sampling of radioactive high-level nuclear waste is reilu ired for continued operations, waste characterization, and site safety. The Hanford site tank farms consist of 28 double- shell and 1.49 single-shell underground storage tanks. The ``full`` capacity of each of these tanks is approximately 1 million gallons. The waste stored in these tanks was generated as a result of defense materials production over the course of 4 decades. The single shell tanks are out-of-service and no longer receive liquid waste. Core samples of salt cake, liquid and sludge are remotely obtained using truck-mounted core drill platforms. Samples are ... continued below

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13 p.

Creation Information

Weber, J.R. September 25, 1996.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 12 times . More information about this report can be viewed below.

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  • Westinghouse Hanford Company
    Publisher Info: Westinghouse Hanford Co., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

Stored waste tank sampling of radioactive high-level nuclear waste is reilu ired for continued operations, waste characterization, and site safety. The Hanford site tank farms consist of 28 double- shell and 1.49 single-shell underground storage tanks. The ``full`` capacity of each of these tanks is approximately 1 million gallons. The waste stored in these tanks was generated as a result of defense materials production over the course of 4 decades. The single shell tanks are out-of-service and no longer receive liquid waste. Core samples of salt cake, liquid and sludge are remotely obtained using truck-mounted core drill platforms. Samples are recovered from the tanks through a 2.25-inch diameter drill pipe,, in segments contained in specially designed stainless steel samplers approximately 1.5-inch in outside diameter and 26-inches long. The sampled material in a given segment can include crystalline salt-cake, liquid, sludge and entrained gas. Drilling parameters will necessarily vary with different waste types, e.g., crystalline salt-cake versus sludge. At times, the core sample recovery has been marginal and inadequate for laboratory analysis needs. This necessitated a system to provide the drill-truck operators with ``real-time`` feedback about the physical condition of the sampled ``formation`` and the percent recovery, prior to receiving .,isual characterization information and nuclear assay measurements from the Hanford site 222-S Analytic!al laboratories, a process often requiring two week turn-around of data. This real- time information allows the drill-truck engineers to immediately vary the drilling parameters to maintain sample recovery.

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13 p.

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OSTI as DE98058667

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  • Other Information: PBD: 25 Sep 1996

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  • Other: DE98058667
  • Report No.: WHC-SA--3122-FP
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/331676 | External Link
  • Office of Scientific & Technical Information Report Number: 331676
  • Archival Resource Key: ark:/67531/metadc679024

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • September 25, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • June 14, 2016, 3:44 p.m.

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Weber, J.R. Mobile X-ray imaging systems for the tank waste characterization project at the Hanford site, report, September 25, 1996; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc679024/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.