| 摘要 |
The present invention relates to a process for the recovery of a fluorosurfactant present in an aqueous solution, in a gaseous effluent or in both involving a) obtaining an aqueous solution or gaseous effluent comprising 1 to 1,000 ppm of surfactant, b) removing any suspended solids, c) optionally concentrating the solution, d) passing the aqueous solution over a stationary bed of granular active charcoal such that all the surfactant is adsorbed without any solvents being adsorbed, e) halting the passage of the solution and gaseous effluent over the beds of activated charcoal which are eluted with a solution comprising a solvent and an inorganic acid, and then f) treating the solution recovered in stage e) to regenerate the fluorosurfactant.
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