Nanofiltration is a membrane separation process whose cut-off lies between that of reverse osmosis and ultrafiltration. We offer the latest nanofiltration technology in applications including water softening and drinking water treatment. Nanofiltration offer numerous benefits over conventional reverse osmosis systems due to the reduced energy cost and reduction in discharge water, especially where the salt rejection rate is of a lesser concern.
Nanofiltration functions similarly to reverse osmosis, but is generally targeted to remove only divalent (bivalent) and larger ions. Monovalent ions such as sodium and chloride will pass through a nanofiltration membrane, therefore many of its uses involve the de-salting of the process water stream. Haliant Technologies supplies a large range of Nanofiltration systems specifically designed to remove the hardness from water, without the need for ion exchange.
Haliant Technologies provides complete skid mounted nanofiltration systems, designed to be used as water softeners or as an alternative to reverse osmosis. These units are particularly suited in applications where ion exchange water softening is not desirable, due to the presence of monovalent ions, or the environmental problems related to the disposal of brine effluent. To ensure concentrated hardness salts do not foul the membranes, we provide an integrated antiscalant dosing for our nanofiltration systems.
Benefits of Nanofiltration