Precipitate hydrolysis experimental facility (PHEF): Run 64 report

Technical Report · Fri Jul 29 00:00:00 EDT 1994

DOI:https://doi.org/10.2172/10186002· OSTI ID:10186002

Lambert, D P; Edwards, R E; Shah, H B; Young, S R ^[1]

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1. Westinghouse Savannah River Co., Aiken, SC (United States). Savannah River Technology Center

The significant findings of Run 64 are: (a) Carbon dioxide was demonstrated to be an acceptable inertant for the actual hydrolysis process. However, based on the severe degradation of the tetraphenylborate (TPB) precipitate slurry stored in the Precipitate Hold Tank (PHT) at PHEF following Run 65, further evaluation of the suitability of carbon dioxide as an inertant for the long term storage of precipitate slurries is warranted. (b) Phenylboronic acid (PBA) reaction kinetics were excellent with no detectable PBA in Precipitate Hydrolysis Aqueous (PHA) product. (c) PHA product was low in biphenyl (6 mg/l), diphenylamine (13 mg/l), and total high boiling organics (22 mg/l). (d) Reproduced vacuum collapse problems encountered in DWPF (Defense Waste Processing Facility) water runs and demonstrated that the high vacuums experience during water runs could not be reproduced under normal operating conditions. (e) High benzene losses through stack and fugitive emissions were noted during Run 64. This may lead to poor decanter extraction performance long term and may be problem in DWPF, especially during long lay-ups or at low attainments. Approximately 69% of the benzene produced during Run 64 was released as benzene emissions.

• Research Organization: Savannah River Site (SRS), Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10186002
• Report Number(s): WSRC-TR-94-0161; ON: DE94019062; TRN: 94:020160
• Resource Relation: Other Information: PBD: 29 Jul 1994
• Country of Publication: United States
• Language: English

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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
RADIOACTIVE WASTES
HYDROLYSIS
INERT ATMOSPHERE
MATERIALS TESTING
RADIOACTIVE WASTE FACILITIES
SAFETY ENGINEERING
BENZENE
AIR POLLUTION
CHEMICAL REACTION KINETICS
FLAMMABILITY
TANKS
SLURRIES
PRECIPITATION
CHEMICAL ANALYSIS
MASS BALANCE
EVAPORATORS
ORGANIC COMPOUNDS
EXPERIMENTAL DATA
RADIOACTIVE WASTE PROCESSING
052001
053003
054000
WASTE PROCESSING
CHEMICAL AND THERMAL EFFLUENTS
HEALTH AND SAFETY