Fluorinated surfactants: synthesis, properties, effluent treatment

Pabon, Martial; Corpart, Jean‐Marc

doi:10.1016/s0022-1139(02)00038-6

Cited by 131 publications

(86 citation statements)

References 14 publications

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“…The telomere iodides are reacted further with ethylene to form perfluoroalkylethyl iodides, which can be readily converted to FTOHs, thiols, and sulfonyl chlorides. These are used as intermediates for fluorinated surfactants (Pabon andCopart 2002, Kissa 2001), and their derivatives, such as the FTOH derivatives, will also be mixtures of relatively many (typically 5-10) homologue series. For instance, the PAPs are made by reacting industrial blends of FTOH mixtures (e.g.…”

Section: Telomerizationmentioning

confidence: 99%

PFAS in Paper and Board for Food Contact

et al. 2018

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Section: Telomerizationmentioning

confidence: 99%

PFAS in Paper and Board for Food Contact

et al. 2018

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“…Compared to hydrocarbon ones, uorinated surfactants have a lower CMC, they have a bigger in uence on water surface tension even at low concentration, and allow reaching surface tension as low as 15 20 mN.m −1 at 20°C [3]. Fluorinated surfactants are most commonly used as photolithographic chemicals in semiconductor industry, as emulsi ers in polymerization of uoropolymers and as additive in high performance re-ghting foams.…”

Section: Hydrocarbon and Uorinated Surfactantsmentioning

confidence: 99%

“…Adsorption of uorinated surfactant potentially present in re ghting water was studied on activated carbon [3], showing interesting results for the extraction of uorinated surfactants but pinpointing the need of improvements regarding the cost in use and the high sensitivity (rapid saturation) to polymers and proteins potentially present in the re ghting water.…”

Section: Treatment Processes For Water Containing Uorinated Surfactantsmentioning

confidence: 99%

Purification of firefighting water containing a fluorinated surfactant by reverse osmosis coupled to electrocoagulation–filtration

Baudequin

Couallier

Rakib

et al. 2011

Separation and Purification Technology

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Extinguishments of large scale solvent res produce large amounts of water that may contain various uorinated surfactants depending on the type of re ghting foam used. Due to their chemical nature, uorinated parts of uorinated compounds are highly resistant to biochemical and advanced oxidation processes. Therefore the current treatment for the degradation of uorinated surfactant from water used in re extinguishment is high temperature incineration of the water in halogen resistant incinerators. This paper aims to propose a process for purifying re ghting water containing uorinated surfactants.Pilot re ghting waters resulting from heptane re extinguishment with reghting foam containing a uorinated surfactant were produced. Suspended matter was estimated on the basis of turbidity measurement and uorinated not suitable for direct membrane processes because of high fouling, hence electrocoagulation and ltration were required. Electrocoagulation with aluminium electrodes at a charge loading of 600 C L −1 followed by ltration were found su cient to remove turbidity from pilot re ghting waters. Fluorinated surfactant removal was 71 77% and was not signi cantly increased by higher charge loading. Floc separation in bulk solution was achieved by ltration. Reverse osmosis of pretreated pilot re ghting water and concentrated model solutions of pretreated re ghting water were studied and though ux decline was observed, measured retention rates were 99.94 99.97%, with permeate concentrations down to 10 16 µg L −1 of uorinated surfactant at the laboratory scale. The concentrate from reverse osmosis could be recycled in electrocoagulation-ltration. Experimental results indicated that electrocoagulation and ltration followed by reverse osmosis e ciently treated the water from re extinguishment, which enables a further scale-up work.

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“…The wetting properties can be improved by mixing fluorosurfactants with conventional hydrocarbon surfactants. It should be emphasized that despite proven industrial applications of synergetic mixtures of fluoro-and hydrocarbon surfactants (for example, in aqueous film-forming foams used in firefighting [26]) publications on these systems are rather scarce [27]. Therefore another aim of this work is the study of wetting performance of mixtures of fluoro-and hydrocarbon surfactants to provide direct experimental evidence that the synergism in this system is due to their different affinity to the liquid/ air and liquid/hydrocarbon interface.…”

Section: Introductionmentioning

confidence: 99%