Patent ID: 8663445

Claim:
An electrochemical desalination system comprising: a first and a second electrochemical desalination devices each comprising an electrochemical desalination module comprising at least one pair of electrodes and a compartment between each pair of electrodes for receiving an electrolyte solution, each of the first and second electrochemical desalination devices comprising a plurality of successive operation cycles, each cycle comprising a charging mode of operation for charging each pair of electrodes and for adsorbing ions in the electrolyte solution on the electrodes, and a discharging mode of operation for discharging the pair of electrodes and for desorbing ions from the pair of electrodes; and a controller programmed to control the system such that the first and second electrochemical desalination devices have interleaved charging and discharging modes of operation, wherein one of the first and second electrochemical desalination devices is in a discharging mode and the at least one pair of electrodes release electrical current, while the other of the first and second electrochemical desalination devices is in a charging mode of operation and receives the electrical current released from said one of the first and second electrochemical desalination device, wherein the controller is programmed to control the system such that the discharging mode of operation of each of the first and second electrochemical desalination devices comprises a normal discharging mode of operation and a compulsory discharging mode of operation, wherein the controller is further programmed to calculate and determine a normal discharge current, normal discharging time, compulsory discharging current and compulsory discharging time based on a previous operation cycle or the average of several previous operation cycles.