ELECTROCHEMICAL SEPARATION SYSTEMS AND METHODS

摘要

Systems and methods for treating water may involve a first electrochemical separation module that includes at least one ion exchange membrane having a first set of performance characteristics, and a second electrochemical separation module that includes at least one ion exchange membrane having a second set of performance characteristics that is different than the first set of performance characteristics. Performance characteristics may relate to at least one of water loss, electrical resistance, and permselectivity. Staged treatment systems and methods may provide improved efficiency.

主权项

1. A water treatment system, comprising:
a feed inlet fluidly connected to a source of water to be treated; a first electrochemical separation module in fluid communication with the feed inlet, the first electrochemical separation module including at least one ion exchange membrane having a first set of performance characteristics; a second electrochemical separation module fluidly connected downstream of the first electrochemical separation module, the second electrochemical separation module including a least one ion exchange membrane having a second set of performance characteristics that is different than the first set of performance characteristics; and a product outlet fluidly connected downstream of the second electrochemical separation module.