Under many influent conditions, it is technically feasible to use ion exchange resin or reverse osmosis, and the choice of process should be determined by economic comparison.
In general, the higher the salt content, the more economical the reverse osmosis will be. The lower the amount, the more economical the ion exchange is.
Due to the popularization of reverse osmosis technology, the combination of reverse osmosis + ion exchange process or multi-stage reverse osmosis or reverse osmosis + other deep desalination technology has become a recognized technical and economical more reasonable water treatment solution
