| http://www.w3.org/ns/prov#value | - The vapour obtained from this second evaporation unit 14 is also recuperated in the distilled water tank 17, whereas the concentrated salty solution is brought into a concentrated salty solution tank 15 and then into a filtering system, from which on one side solid salts are extracted, and on the other side, a residual liquid which is recycled by appropriate means, for example a pump, in the flocc
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