Patent ID: 9695070
Date: 2017-07-04
CPC Classifications: C02F

Claim:
1. A method of regenerating a capacity of a flow-through capacitor having at least a pair of electrodes spaced from one another to accommodate a flow of water and configured to transfer ions between the pair of electrodes and the water, the method comprising: establishing a target value for a water property concentration in a discharge water stream exiting the flow-through capacitor; measuring a feed value for the water property concentration in a feed water stream entering the flow-through capacitor; calculating an amount of the water property concentration to be added to the feed water stream based on the feed value to achieve the target value for the water property concentration in the discharge water stream; and controlling an amperage of the flow-through capacitor and a flow rate through the flow-through capacitor to add ions to the feed water stream to achieve the target value for the water property concentration in the discharge water stream; wherein an end point of a discharge cycle is established by a comparison of a monitored-current capacity of the flow-through capacitor over the duration of the discharge cycle to a summed-current capacity of the flow-through capacitor that is pre-established.