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VEOLIA DK Series ,Industrial High Rejection Nanofiltration Elements.
The D-Series family of proprietary thin-film nanofiltration membrane elements is characterized by an approximate molecular weight cut-off of 150-300 Dalton for uncharged organic molecules. Divalent and multivalent anions are preferentially rejected by the membrane while monovalent ion rejection is dependent upon feed concentration and composition. Since monovalent ions pass through the membrane, they do not contribute to the osmotic pressure, thus enabling D-Series nanofiltration membrane systems to operate at feed pressures below those of RO systems.
Among other applications DK High Rejection NF Elements are used for dye removal/concentration, sodium chloride diafiltration and metals recovery.
Table 1: Element Specification
(1)Average salt rejection after 24 hours operation. Individual flow rate may vary ±25%.
(2) Testing conditions: 2,000ppm MgSO4 solution at 110psi (760 kPa) operating pressure, 77 °F (25°C), 15 % recovery.
(1) Includes interconnector, refer to Technical Bulletin TB1206 .
Table 3: Operating and CIP Parameters
To enquire about prices for authentic industrial water treatment consumables such as RO membranes, NF membranes, UF membranes, ion exchange resins and EDI modules, please use the contact details below.
