PLUTONIUM ELECTROREFINING AT ROCKY FLATS.

Improving soil remediation through characterization

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100138300 ◽

1995 ◽

Vol 53 ◽

pp. 386-387

Author(s):

E. C. Buck ◽

N. L. Dietz ◽

J. K. Bates

Keyword(s):

Dust Particles ◽

Radiochemical Analysis ◽

Solid Product ◽

Uranium Contamination ◽

Physical Separation ◽

X Ray ◽

Rocky Flats ◽

Remediation Strategies ◽

Bearing Materials ◽

X Ray Absorption

Operations at former weapons processing facilities in the U. S. have resulted in a large volume of radionuclidecontaminated soils and residues. In an effort to improve remediation strategies and meet environmental regulations, radionuclide-bearing particles in contaminant soils from Fernald in Ohio and the Rocky Flats Plant (RFP) in Colorado have been characterized by electron microscopy. The object of these studies was to determine the form of the contaminant radionuclide, so that it properties could be established [1]. Physical separation and radiochemical analysis determined that uranium contamination at Fernald was not present exclusively in any one size/density fraction [2]. The uranium-contamination resulted from aqueous and solid product spills, air-borne dust particles, and from the operation of an incinerator on site. At RFP the contamination was from the incineration of Pu-bearing materials. Further analysis by x-ray absorption spectroscopy indicated that the majority of the uranium was in the 6+ oxidation state [3].

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Surficial geologic map of the Rocky Flats Environmental Technology Site and vicinity, Jefferson and Boulder counties, Colorado

10.3133/i2526 ◽

1996 ◽

Keyword(s):

Environmental Technology ◽

Rocky Flats ◽

Geologic Map

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Safety at Rocky Flats

Science ◽

10.1126/science.178.4059.350-a ◽

1972 ◽

Vol 178 (4059) ◽

pp. 350-352

Author(s):

E. A. Martell

Keyword(s):

Rocky Flats

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Similar but Different: A Top-Down Benchmarking Approach to Investigate Nuclear Decommissioning Projects

Volume 7: Fuel Cycle, Decontamination and Decommissioning, Radiation Protection, Shielding, and Waste Management; Mitigation Strategies for Beyond Design Basis Events ◽

10.1115/icone25-66155 ◽

2017 ◽

Cited By ~ 4

Author(s):

Diletta Colette Invernizzi ◽

Giorgio Locatelli ◽

Naomi J. Brookes ◽

Martin Grey

Keyword(s):

Project Management ◽

Best Practices ◽

Key Factors ◽

Top Down ◽

Rocky Flats ◽

Nuclear Decommissioning ◽

Key Stakeholders ◽

Nuclear Site ◽

Recent Emergence ◽

Management Literature

Project management literature has, until now, mainly focused on new build and only in the last decades the issues of decommissioning (mega) projects has arisen. To respond to this changing environment, project management will need to understand the challenges of decommissioning projects. Decommissioning projects within Oil & Gas, Chemical and Nuclear sectors are characterized by high costs, long schedules and uncertainty-based risks. The budget for Nuclear Decommissioning Projects and Programmes (NDPs) are subject to well publicized increases and, due to their relatively recent emergence, complexity and variety, key stakeholders lack a full understanding of the key factors influencing these increases. Benchmarking involves “comparing actual or planned practices [...] to identify best practices, generate ideas for improvement” [1] and offers significant potential to improve the performance of project selection, planning and delivery. However, even if benchmarking is the envisaged methodology to investigate the NDPs characteristics that impact on the NDPs performance, until now, it has only been partially used and there is a huge gap in the literature concerning benchmarking NDPs. This paper adapts a top-down benchmarking approach to highlight the NDPs characteristics that mostly impact on the NDPs performance. This is exemplified by a systematic quantitative and qualitative cross-comparison of two major “similar-but-different” NDPs: Rocky Flats (US) and Sellafield (UK). Main results concern the understanding of the alternatives of the owner and/or the contractors in relation to (1) the physical characteristics and the end state of the nuclear site, (2) the governance, funding & contracting schemes, and (3) the stakeholders’ engagement.

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Comparison of Wind Turbine Performance Prediction and Measurement

Journal of Solar Energy Engineering ◽

10.1115/1.3266290 ◽

1982 ◽

Vol 104 (2) ◽

pp. 84-88 ◽

Cited By ~ 11

Author(s):

J. L. Tangler

Keyword(s):

Test Data ◽

Wind Turbines ◽

Performance Prediction ◽

State Of The Art ◽

Correlation Study ◽

Performance Models ◽

Rocky Flats ◽

Turbine Performance ◽

Horizontal Axis Wind Turbines ◽

Development Center

The purpose of this work was to evaluate the state-of-the-art of performance prediction for small horizontal-axis wind turbines. This effort was undertaken since few of the existing performance methods used to predict rotor power output have been validated with reliable test data. The program involved evaluating several existing performance models from four contractors by comparing their predictions for two wind turbines with actual test data. Test data were acquired by Rocky Flats Test and Development Center and furnished to the contractors after submission of their prediction reports. The results of the correlation study will help identify areas in which existing rotor performance models are inadequate and, where possible, the reasons for the models shortcomings. In addition, several problems associated with obtaining accurate test data will be discussed.

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