Procedure and installation of treatment of an aqueous effluent with a view to extracting the same at least one gaseous compound dissolved, application to aquaculture in recirculated aqueous medium

摘要

Process for treating an aqueous effluent (16) comprising at least one gaseosodisuelto compound, for example carbon dioxide, which consists of separating at least partly said compound of dichoefluente, in order to obtain a treated aqueous phase depleted in said compound , procedure 5 according elcual: (a) an ascending liquid column (6) of the aqueous effluent is established by injecting and distributing (10) in dichacolumna for the low side, a less rich gaseous phase in said compound to the aqueous effluent, forexample air or oxygen, dividing said gaseous phase in said column as bubbles whose volumenaumenta up, whereby is obtained for the high side, a mixed stream (18) liquid / gas, (b) the mixed stream is separated liquid / gas in a liquid stream (17) forming the treated aqueous phase and unacorriente gas (19) in said gaseous effluent enriched compound constituting the liquid stream (17) stop the effluent gas stream (19) a descending liquid column (7), obtained by vertidode the mixed stream (18) liquid / gas above a high point (3a), characterized in that it separates bajodepresión the mixed stream (18) liquid / gas, over a high point (3a), characterized removed under depression the mixed stream (18) liquid / gas, establishing a gas overhead (20) between the liquid stream and the gas stream and aspirating (12) the latter by means of a vacuum pump (12).