Membrane systems have a variety of applications to separate solid and dissolved matter from liquid and is determined by the pore size of the membrane chosen.
- ULTRAFILTRATION
An ultrafiltration membrane has a pore size of around 0.01 μm (micron). Membrane configuration is either outside-in or inside-out, depending on how much solids are present in the fluid. Periodic chemical enhanced backwash (CEB) and clean in place (CIP) is applied in this system to help maintain the effectiveness and lifespan of UF modules. This membrane is used for the removal of suspended solids. - REVERSE OSMOSIS
A reverse osmosis membrane has a pore size of around 0.0001 μm (micron). A high pressure pump is installed to generate high pressure to overcome the natural osmotic pressure and remove dissolved solids and salts contained in the feed water. This membrane is used to remove dissolved solids to achieve the desired water quality at the permeate line. Anti-scalant is dosed to inhibit scaling and fouling of the RO membranes by extending solubility and dispersion.
