Systems and methods of membrane separation

This is a water treatment system that prevents its internal membranes from getting clogged. It uses a cylindrical tank containing several spiral-wound membranes and a pump to circulate the water. A central pipe without membranes helps guide the water flow.

Why it matters: Filed before significant advancements in membrane materials and computational fluid dynamics. These could now optimize the spiral-wound module design and circulation for better antifouling performance.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedSpiral-wound membranes, pressure vessel, fluid dynamics

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