Method for controlling substances present in a liquid and its applications

The method serves to control substances present in a liquid; a liquid mass is brought to temperature and pressure conditions such as to give rise to an appreciable evaporation of the liquid mass; at least one solid surface is arranged, in part inside the liquid mass and in part outside the liquid mass so as to establish at least a meniscus of the liquid on this solid surface; the shape and/or the size and/or the extension and/or the position and/or the temperature of this meniscus is controlled so that the evaporation of the liquid through said meniscus is controlled; any deposition of these substances is also controlled.