SEPARATION AND CONCENTRATION OF SALT-SOLUTIONS BY MEMBRANE DISTILLATION WITH A GAS SLIT

Studies on desalination and concentration of sea water and model solut ions were conducted on a flow-type laboratory plant for membrane disti llation with a gas slit. The latter was shown to be efficient enough f or separation and deep concentration of various salt solutions. The se lectivity of separation is virtually independent of the temperature of the process and the rates of the separated flows and is slightly depe ndent on the concentration of the solutions under separation. The expe riments were conducted with commercial Vladipor-2 microfiltration memb ranes.