Membrane wastewater treatment system and method thereof

A multilayer module for treating a feed solution, the multilayer module comprising:

• a first feed spacer layer having a first end provided adjacent an inlet of the multilayer module and a second end provided adjacent an outlet of the multilayer module to allow the feed solution to pass from the inlet to the outlet of the multilayer module;
• a first membrane layer having a first surface that is in contact with a surface of the first feed spacer layer;
• and
• a permeate spacer layer having a first surface that is in contact with a second surface of the first membrane layer such that water vapor evaporated from the feed solution in the first feed spacer layer passes through the first membrane layer into the permeate spacer layer,
• wherein the outlet of the multilayer module is configured to couple to an expansion chamber such that the expansion chamber receives the water vapor from the permeate spacer layer and the feed solution from the first feed spacer layer,
• whereby a pressure difference is provided between the expansion chamber and the feed spacer layer to cause the feed solution from the feed spacer layer to expand and vaporize into water vapor when the feed solution exits the outlet of the multilayer module.