Nanofiltration Membrane Elements
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Nanofiltration (NF), in concept and operation, is much like reverse osmosis. The key difference is the degree of removal of monovalent ions such as chlorides. Reverse osmosis removes the monovalent ions at 98-99% level at 200 psi. Nanofiltration membranes’ removal of monovalent ions varies between 50% to 90% depending on the material and manufacture of the membrane. For this reason, there is a variety of Nanofiltration membranes available. Each type is particularly suited to a certain application and may not be acceptable to a different application.
NF5 Nanofiltration Membrane Elements
NF5 membrane elements are an ideal choice for surface water and groundwater where good organic removal is desired with partial softening.
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