Abstract: A process for extracting salt from brine contained in at least one open evaporation basin. At least part of the brine is heated in a heating unit located outside the evaporation basis and returned to the evaporation basin. The heating unit is driven by waste heat from a recooling industrial plant. According to this process, climatic values and the degree of recooling are measured and evaluated in a control unit. At least part of the heated brine and some non-heated brine are sprayed by a spraying device of the evaporation basin. The amount of sprayed brine is regulated by the control unit depending on the measured data.

Abstract: A module having a plurality of chambers which are seated relatively close to each other in a flow-through reservoir having a feed inlet and an oppositely located retentate outlet. The chambers include pervaporation chambers which have a permeation-selective layer and heating chambers. The pervaporation chambers and the heating chambers are alternatingly disposed and supported in cutouts within comb-shaped supports. The flow-through reservoir is box-shaped and has removable, tightly secured longitudinal end walls, one of which supports all pervaporation chambers, the other of which supports all heating chambers. The module is highly efficient due to flow and temperature distribution conditions which remain extremely exact.