The feed spacer on a spiral wound RO membrane is intended to develop for vortexes for prevention of localized salt concentrations to reduce scaling and generous openings to minimize fouling. A thin feed spacer will allow an increase the membrane area in a standard 8? element which will allow greater water production in that same membrane element. T...

Aqua Membranes has developed membrane feed spacers printed directly on the membrane surface. These spacers are thinner than conventional mesh spacers and allow up to twice as much membrane surface in a standard size element. The spaces can have any shape and are more "open" in design which reduces membrane fouling and making them easier to clean....