Smart Polymeric Coatings for Surface Decontamination

Gray, H. Neil; Jorgensen, Betty S.; Mcclaugherty, Donald L.; Kippenberger, Andrew M.

doi:10.1021/ie010034v

Cited by 43 publications

(31 citation statements)

References 20 publications

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“…These include amodoxime [1][2][3], phosphorous acid groups [4], diphosphonic [5][6][7][8] and hydroxamic acid groups [9]. Depending on the application, it is possible to synthesize a variety of polymers and polymer networks bearing these, or other suitable, functional groups [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The most reported polymer modifications used for heavy metals sorption are performed in solution or are modifications of polymer networks.…”

Section: Introductionmentioning

confidence: 99%

Surface modified Nylon 6,6 and application for adsorption and detection of uranium in potable water

Pantchev

Farquet

Surbeck

et al. 2007

Reactive and Functional Polymers

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Section: Introductionmentioning

confidence: 99%

Surface modified Nylon 6,6 and application for adsorption and detection of uranium in potable water

Pantchev

Farquet

Surbeck

et al. 2007

Reactive and Functional Polymers

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“…Tawil describes early candidates in film coatings for decontamination but the first successful coating for hard surfaces was the ALARA 1146 [56]. Demmer [57] summarizes several commercially-available films they investigated during decontamination activities at the Idaho National Laboratory including TLC Stripcoat (Bartlett Nuclear, Inc.), PENTEK 604, Sensorcoat (a formulation based on Gray [58]), and an experimental, electrochemically-assisted coating called ElectroDecon (ADA Technologies, Inc.). DF values varied but were generally 4-20 from steel and lead bricks.…”

Section: 2mentioning

confidence: 99%

“…Andersson's study [59] investigated six film formulations for the decontamination of soils. Gray [58] describes smart coatings that incorporate bromo-pyridylazo-diethylaminophenol as a color indicator that identify the location of radioactive hotspots. He reports DF>>100 for steels, glasses, painted aluminum, and painted cement in laboratory and during the decontamination of hot cell walls at Los Alamos National Laboratory.…”

Section: 2mentioning

confidence: 99%

“…Andersson [59] tested six strippable coatings for the removal of contaminated soil. An example of "smart" coatings are given by Gray [58], where a strong chelator and colorimetric agent were mixed with the polymer coating to indicate the location of hot spots. Idaho National Laboratory [57] tested commercial and experimental coatings on contaminated coupons.…”

Section: Removal Of Debris and Dustmentioning

confidence: 99%

See 1 more Smart Citation

Wide-area decontamination in an urban environment after radiological dispersion: A review and perspectives

Kaminski

Lee

Magnuson

2016

Journal of Hazardous Materials

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Nuclear or radiological terrorism in the form of uncontrolled radioactive contamination presents a unique challenge in the field of nuclear decontamination. Potential targets require an immediate decontamination response, or mitigation plan to limit the social and economic impact. To date, experience with urban decontamination of building materials - specifically hard, porous, external surfaces - is limited to nuclear weapon fallout and nuclear reactor accidents. Methods are lacking for performing wide-area decontamination in an urban environment so that in all release scenarios the area may be re-occupied without evaluation and/or restriction. Also lacking is experience in developing mitigation strategies, that is, methods of mitigating contamination and its resultant radiation dose in key areas during the immediate aftermath of an event and after lifesaving operations. To date, the tremendous strategy development effort primarily by the European community has focused on the recovery phase, which extends years beyond the release event. In this review, we summarize the methods and data collected over the past 70 years in the field of hard, external surface decontamination of radionuclide contaminations, with emphasis on methods suitable for response to radiological dispersal devices and their potentially unique physico-chemical characteristics. This review concludes that although a tremendous amount of work has been completed primarily by the European Community (EU) and the United Kingdom (UK), the few studies existing on each technique permit only very preliminary estimates of decontamination factors for various building materials and methods and extrapolation of those values for use in environments outside the EU and UK. This data shortage prevents us from developing an effective and detailed mitigation response plan and remediation effort. Perhaps most importantly, while the data available does include valuable information on the practical aspects of performing the various remediation methods including costs, coverage rates, manpower, pitfalls, etc., it lacks the details on lessons learned, best practices, and standard procedures, for instance, that would be required to develop a mitigation strategy. While the urban decontamination problem is difficult and there is much more research to do, the existing literature provides a framework for a response plan. Using this framework, in conjunction with computer modeling and relevant data collection, can lead to development of appropriate plans and exercises that would permit development of a mitigation and remediation response.

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“…The ASME Journal of Nuclear Engineering and Radiation Science NERS-16-1153 6 Yaar In the past few years, EPA has evaluated the effectiveness of peelable/strippable coating gels in the removal of radioisotopes from test surfaces [3,16,17,18,19] concrete and ceramics coupons [20]. Use of bigger surfaces allowed us to better evaluate the operational parameters needed to conduct a large-scale outdoor decontamination process.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hydrogel Technologies for the Decontamination of 137Cs From Building Material Surfaces

Yaar¹,

Hakmon²,

Halevy³

et al. 2017

Journal of Nuclear Engineering and Radiation Science

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One of the preparation steps for a possible radiological attack, is the capability of fast and effective decontamination of critical infrastructures. This study describes the implementation of a test plan at an intermediate scale (between bench scale and large scale or wide area) to evaluate decontamination procedures, materials, technologies, and techniques for removal of radioactive material from various surfaces. Two radioisotopes were tested: cesium-137 ( 137 Cs) and the short-lived simulant to 137 Cs, rubidium-86 ( 86 Rb).Two types of decontamination hydrogel products were evaluated: DeconGel TM and Argonne SuperGel. Tests were conducted at the assigned Chemical, Biological, Radiological, and Nuclear (CBRN) Israel Defense Forces (IDF) Home Front Command facility, and at the Nuclear Research Center Negev (NRCN), Israel. Results from these tests indicated similar removal and operational parameters for 86 Rb and 137 Cs, as expected from the chemical similarity of both elements. These results proved that the short-lived radioisotope 86 Rb can be used in future experiments to simulate 137 Cs. Results and conclusions from these experiments are presented and compared to results from laboratoryscale experiments performed on small coupons. In general, both hydrogel decontaminationproducts may be used as a viable option to decontaminate large surfaces in a real-world event, removing between 30-90% of the contamination, depending on the surface type and porosity. However, both products may leave behind absorbed contamination, that will need to be addressed at a later stage. Yet, the likelihood of resuspension through use of these products is reduced.

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Smart Polymeric Coatings for Surface Decontamination

Cited by 43 publications

References 20 publications

Surface modified Nylon 6,6 and application for adsorption and detection of uranium in potable water

Surface modified Nylon 6,6 and application for adsorption and detection of uranium in potable water

Wide-area decontamination in an urban environment after radiological dispersion: A review and perspectives

Evaluation of Hydrogel Technologies for the Decontamination of 137Cs From Building Material Surfaces

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