The EDI technology today has advanced to where it is available from suppliers as a component to OEMs that design complete systems similar to the availability of RO membranes. This was first initiated by Electropure, Inc. in the early 1990’s and has been continued by others. However, because of the competitive nature in the industry and a continuation of new products every two to three years, it is unlikely that there will be harmonization of a standard EDI in the near future. The intense competition among suppliers has also simplified the design and significantly decreased the system and module cost. The advancements include removal of the concentrate recirculation system, removal of a brine injection system, and ‘leak free’ designs. Improvements in manufacturing have allowed for higher quality products, improved plastics allowing for heat sanitizable systems, and ion exchange resin configurations allowing for a wider range of applications. Click Here For Complete Article Text
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