Importance

Loading Importance Indicators...

Abstract

This Gated Electrodialysis GED invention provides desalination of saline water while having only solid waste. The basic structure of an ordinary electrodialysis process is modified so that there is essentially no electrical power losses and no cross-water leakages in the concentrate, dilute, anolyte, and catholyte water distributions systems. Consequently, the concentrate water can be supersaturated while the dilute water can have any concentrations. Furthermore, the new process provides a means of operating such that the circulating concentrate supersaturated water can take tens of hours to flow through an enhanced clarifier. Consequently, there is time for solids to precipitate out of the concentrate supersaturated saline water and drift to the bottom of the enhanced clarifier and/or onto seed crystals before the concentrate water is reused. A representative design of this GED invention is given which is followed by the performance prediction for three examples.

Loading the Abstract Image...

First Claim