Patent ID: 11939234
Assignee: BAXTER HEALTHCARE SA
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC C

Claim 0:
1. A method for optimizing efficiency of a water purification apparatus comprising a fluid circuit including a reverse osmosis (RO) unit that provides a permeate flow, and an electrically controlled deionization unit downstream from the RO unit that receives at least part of the permeate flow, the method comprising:
obtaining, using a sensor, a current or voltage value indicative of power consumption by the electrically controlled deionization unit;
determining whether the obtained current or voltage value meets at least one power consumption criterion; and
controlling, using one or more valve units, recirculation of reject water produced by the water purification apparatus based on whether the obtained current or voltage value meets the at least one power consumption criterion, wherein the controlling comprises at least one of:
increasing the recirculation of reject water in response to determining that the obtained current or voltage value indicative of power consumption is below a first threshold, or
decreasing the recirculation of reject water in response to determining that the obtained current or voltage value indicative of power consumption is above a second threshold.