Full-Scale Vessel Testing for the Hanford Waste Treatment and Immobilization Plant - 18333

Conference · Sun Jul 01 04:00:00 EDT 2018

OSTI ID:22975471

Holton, Langdon ^[1]; Kosson, David ^[2]; Trenidad, Michaela; Daniel, Russell; Monson, Scott; Griswold, Lincoln; McAdams, Nathan ^[3]; Calabrese, Rich ^[4]; Dickey, David ^[5]

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1. US DOE (United States)
2. Vanderbilt University, CRESP (United States)
3. Bechtel Nuclear, Security, and Environmental (United States)
4. University of Maryland (United States)
5. MixTech, Inc (United States)

Concerns over the mixing performance of the planned pulse jet mixed (PJM) vessels for high-solids applications in the Hanford Waste Treatment and Immobilization Plant (WTP) Pretreatment (PT) Facility, led to the development of a standard high-solids vessel (SHSV) design and full-scale vessel testing program. The SHSV is intended as a potential replacement for several high-level waste feed receipt and lag storage vessels (High-Level Waste Facility lag storage and feed blending process), ultrafiltration feed preparation vessels (ultrafiltration process system), and plant wash vessels (plant wash and disposal system). The SHSV concept uses multiple smaller vessels (60 500 L - 79 500 L nominal batch size) to replace larger vessels, providing redundancy, improved mixing (PJM design and spargers), monitoring (multi-level bubblers), reduced material at risk, and improved structural features. The SHSV also requires qualification of a single vessel design for high solids Newtonian and non-Newtonian slurry processing, rather than having to qualify earlier multiple vessel designs. An Integrated Technical Team consisting of the U.S. Department of Energy, Bechtel National, Inc., and independent experts was established to accelerate and provide oversight and direction of the test program and SHSV qualification. Qualification of the SHSV for mixing has now been achieved through a comprehensive full-scale vessel testing program conducted in 2017 with a prototypic SHSV under a set of most adverse design conditions, in conjunction with additional engineering analyses. This paper will present an overview of the SHSV, results from the three-phase full-scale vessel test and qualification program completed in September 2017, and the management program to achieve resolution of the PJM mixing technical issue. (authors)

• Research Organization: WM Symposia, Inc., PO Box 27646, 85285-7646 Tempe, AZ (United States)
• OSTI ID: 22975471
• Report Number(s): INIS-US--20-WM-18333
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
DESIGN
HANFORD ENGINEERING DEVELOPMENT LABORATORY
HIGH-LEVEL RADIOACTIVE WASTES
PROGRAM MANAGEMENT
QUALITY CONTROL
RADIATION MONITORING
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE PROCESSING
SLURRIES
SOLID WASTES
ULTRAFILTRATION