Metal Surface Decontamination Using 1-Hydroxyethane-1,1-Diphosphonic Acid

Michael D. Kaminski; Luis Nuñez; Ankur Purohit; Michael Lewandowski

doi:10.13182/nt00-a3086

Metal Surface Decontamination Using 1-Hydroxyethane-1,1-Diphosphonic Acid

Nuclear Technology ◽

10.13182/nt00-a3086 ◽

2000 ◽

Vol 130 (2) ◽

pp. 184-195 ◽

Cited By ~ 2

Author(s):

Michael D. Kaminski ◽

Luis Nuñez ◽

Ankur Purohit ◽

Michael Lewandowski

Keyword(s):

Metal Surface ◽

Diphosphonic Acid ◽

Surface Decontamination

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Metal Surface Decontamination by the PFC Solution

Volume 5: Safety and Security; Low Level Waste Management, Decontamination and Decommissioning; Nuclear Industry Forum ◽

10.1115/icone14-89210 ◽

2006 ◽

Author(s):

Hui-Jun Won ◽

Gye-Nam Kim ◽

Wang-Kyu Choi ◽

Chong-Hun Jung ◽

Won-Zin Oh

Keyword(s):

Metal Surface ◽

Oxide Powder ◽

Europium Oxide ◽

Test Results ◽

Before And After ◽

Surface Decontamination

PFC (perfluorocarbon) spray decontamination equipment was fabricated and its decontamination behavior was investigated. Europium oxide powder was mixed with the isotope solution which contains Co-60 and Cs-137. The different shape of metal specimens artificially contaminated with europium oxide powder was used as the surrogate contaminants. Before and after the application of the PFC spray decontamination method, the radioactivity of the metal specimens was measured by MCA. The decontamination factors were in the range from 9.6 to 62.4. The spent PFC solution was recycled by distillation. Before and after distillation, the turbidity of PFC solution was also measured. From the test results, it was found that more than 98% of the PFC solution could be recycled by a distillation.

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Water-based strippable coatings containing bentonite clay for heavy metal surface decontamination

Arabian Journal of Chemistry ◽

10.1016/j.arabjc.2016.03.009 ◽

2019 ◽

Vol 12 (8) ◽

pp. 4026-4034 ◽

Cited By ~ 1

Author(s):

Gabriela Toader ◽

Paul-Octavian Stănescu ◽

Teodora Zecheru ◽

Traian Rotariu ◽

Abdelkrim El-Ghayoury ◽

...

Keyword(s):

Heavy Metal ◽

Metal Surface ◽

Bentonite Clay ◽

Water Based ◽

Surface Decontamination

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Electrochemical nucleation and growth of copper on iron and aluminum: A TEM study of industrial copper cementation

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100109410 ◽

1978 ◽

Vol 36 (1) ◽

pp. 454-455

Author(s):

L.E. Murr ◽

V. Annamalai

Keyword(s):

Metal Surface ◽

Copper Deposit ◽

Nucleation And Growth ◽

16Th Century ◽

Electrochemical Reactions ◽

Mine Shaft ◽

De Re ◽

Copper Precipitation ◽

Electrochemical Nucleation ◽

Interesting System

Georgius Agricola in 1556 in his classical book, “De Re Metallica”, mentioned a strange water drawn from a mine shaft near Schmölnitz in Hungary that eroded iron and turned it into copper. This precipitation (or cementation) of copper on iron was employed as a commercial technique for producing copper at the Rio Tinto Mines in Spain in the 16th Century, and it continues today to account for as much as 15 percent of the copper produced by several U.S. copper companies.In addition to the Cu/Fe system, many other similar heterogeneous, electrochemical reactions can occur where ions from solution are reduced to metal on a more electropositive metal surface. In the case of copper precipitation from solution, aluminum is also an interesting system because of economic, environmental (ecological) and energy considerations. In studies of copper cementation on aluminum as an alternative to the historical Cu/Fe system, it was noticed that the two systems (Cu/Fe and Cu/Al) were kinetically very different, and that this difference was due in large part to differences in the structure of the residual, cement-copper deposit.

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Rapid Freezing of Freeze-Etch Specimens

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600003275 ◽

1980 ◽

Vol 38 ◽

pp. 752-755

Author(s):

A. Elgsaeter ◽

T. Espevik ◽

G. Kopstad

Keyword(s):

Low Temperature ◽

Metal Surface ◽

Relative Velocity ◽

Thermal Contact ◽

High Rate ◽

Rapid Freezing ◽

Temperature Decrease ◽

Freeze Etching

The importance of a high rate of temperature decrease (“rapid freezing”) when freezing specimens for freeze-etching has long been recognized1. The two basic methods for achieving rapid freezing are: 1) dropping the specimen onto a metal surface at low temperature, 2) bringing the specimen instantaneously into thermal contact with a liquid at low temperature and subsequently maintaining a high relative velocity between the liquid and the specimen. Over the last couple of years the first method has received strong renewed interest, particularily as the result of a series of important studies by Heuser and coworkers 2,3. In this paper we will compare these two freezing methods theoretically and experimentally.

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