Relations between physicochemical properties and instability of decontamination foams

Dame, Christelle; Fritz, Christelle; Pitois, Olivier; Faure, Sylvain

doi:10.1016/j.colsurfa.2004.12.053

Cited by 49 publications

(27 citation statements)

References 19 publications

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“…Different alkyl polyglycoside surfactants have recently been evaluated for their detergency properties [15]. The adsorption of alkyl polyglycoside onto the solid/water interface has also been studied to determine equilibrium effects of alkyl chain length, Head group polymerization has been studied [16] as well as foaming behavior [17] …”

Section: Foaming and Wetting Propertiesmentioning

confidence: 99%

Synthesis and Characterization of some Alkyl Polyglycosides Surfactants

El-Sukkary

Syed

Aiad

et al. 2008

J Surfact & Detergents

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Alkyl polyglycosides (APGs) of different hydrocarbon chain lengths were prepared using an indirect method involving the condensation of fatty alcohol with dextrose. The chemical structures of the prepared compounds were confirmed using different spectroscopic techniques, primarily Fourier transform infrared spectroscopy, nuclear magnetic resonance and mass spectroscopy. The surface properties of the solutions containing different concentrations of the prepared APGs were determined at different temperatures. The results of the spectroscopic analysis demonstrate that these materials were prepared through the correct techniques, producing pure materials. The results of the critical micelle concentration (CMC) determination demonstrate that the surface properties of these compounds depend mainly on the nature of their hydrophobic component.

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Section: Foaming and Wetting Propertiesmentioning

confidence: 99%

Synthesis and Characterization of some Alkyl Polyglycosides Surfactants

El-Sukkary

Syed

Aiad

et al. 2008

J Surfact & Detergents

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show abstract

“…This was required in order to obtain a two phase system in which the rates of liquid drainage and coalescence did not prevent the overflowing of foam over the lip of the tank to take place. Xanthan gum has been used in free drainage studies to increase the viscosity of the liquid (Dame et al, 2005;Papara et al, 2009), but this is, to the best of the author's knowledge, the first paper reporting its use for a two-phase overflowing system.…”

Section: Experimental Systemmentioning

confidence: 97%

Experimental and numerical studies of launder configurations in a two-phase flotation system

Brito-Parada

Cilliers

2012

Minerals Engineering

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“…Decontamination foam is a non-stable, two-phase fluid with aqueous and gas phases representing not more than 10 and 90 % of the total volume, respectively. This formulation can significantly decrease the amounts of chemical reagents and secondary wastes (Dame et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…The disadvantages of decontamination foam systems include the relatively low decontamination factor with a onetime application (Nunez and Kaminski 2007). The decontamination efficiency can be enhanced by improving the contact time between chemical reagents and a contaminated surface through the addition of surfactants and viscosifiers to the decontamination foam (Dame et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Foam Stability in Decontamination Foam Stabilized by Silica Nanoparticles with Nonionic Surfactant

Yoon

Jung

Yoon

et al. 2013

From Sources to Solution

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The decontamination process was needed to remove the radionuclide in nuclear facilities under decommissioning. Among the decontamination techniques, the decontamination foam strongly decreases the amount of chemicals and the secondary wastes and, has wide application in nuclear facilities. The purpose of the present study is to investigate the effects of surfactants, silica nanoparticles (NPs) concentration, and pH for foam stability and oxide dissolution. The foam stability in acid pH has an effect on the concentration of nonionic surfactant, however, in neutral pH does not have concentration effect. The addition of 3 and 5 wt% silica NPs improves the foam stability by a factor of 3 and 5 at pH 2, compared to the foam stabilized with 1 % EM 100 surfactant only, indicating that the increase of silica NPs increased the foam stability. The oxide dissolution was evaluated for the decontamination foam containing 1 M HNO 3 using the corroded specimens. The results of an iron dissolution test showed that increased foam stability enhanced the iron dissolution owing to an increase in the contact time between the chemical reagents and the corroded surface.

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Relations between physicochemical properties and instability of decontamination foams

Cited by 49 publications

References 19 publications

Synthesis and Characterization of some Alkyl Polyglycosides Surfactants

Synthesis and Characterization of some Alkyl Polyglycosides Surfactants

Experimental and numerical studies of launder configurations in a two-phase flotation system

Evaluation of Foam Stability in Decontamination Foam Stabilized by Silica Nanoparticles with Nonionic Surfactant

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