It was demonstrated that ethanethiol could be continuously removed from a gas stream with a unit that combined slurry sorption with in-stream regeneration of the adsorbent for re-use. The regeneration process led to the electrochemical oxidation of adsorbed species and the restoration of the adsorbent's active surface area. The unit was tested with a 22.4 l min(-1) challenge gas stream containing 100 ppm ethanethiol and operated at current densities ranging from 0 to 4 mA cm(-2). Removal of ethanethiol varied with applied current and reached 69% removal at 4 mA cm(-2). In this system, it was shown that mass transfer by chemical reaction with free chlorine generated in the anode was the dominant effect with physical mass transfer modelled as only contributing between 2.5% and 9% removal. It was demonstrated by mass balance that the gaseous sulfur challenge component removed was transferred into the aqueous phase by the system and the sulfur removed persisted in this aqueous phase most probably in the form of thiosulfinates, thiosulfonates and sulfates. (C) 2012 Elsevier Ltd. All rights reserved.