DESALINATION SYSTEM AND METHOD

摘要

A desalination system comprises a silica removal apparatus configured to receive a first feed stream for silica removal. The silica removal apparatus comprises first and second electrodes, and a plurality of paired ion exchange membranes disposed between the first and second electrodes to form a plurality of alternating first and second channels. The silica removal apparatus further comprises a plurality of spacers disposed between each pair of the adjacent ion exchange membranes and between the first and second electrodes and the respective ion exchange membranes. Wherein a first member of each pair of the ion exchange membranes is an anion exchange membrane and a second member of each pair of the ion exchange membranes is an anion exchange membranes, a monovalent cation exchange membrane or a bipolar ion exchange membrane, and wherein the first members and the second members are disposed alternately within the plurality of the paired ion exchange membranes.