How do PerVap® systems work?

Pervaporation process
In the pervaporation process, a liquid mixture contacts the membrane, which preferentially permeates one of the liquid components as a vapor. The vapor enriched in the more permeable component is cooled and condensed, spontaneously generating a vacuum that drives the process. MTR’s pervaporation systems use proprietary membranes to separate dissolved volatile organic compounds (VOCs) from aqueous solutions. The membrane selectively permeates the organic compound, producing a concentrated permeate stream that contains the organic component of interest and an organic-depleted residue stream. The dissolved organic may be a high-value component, such as a food essence, or a contaminant, such as a chlorinated solvent.