Patent ID: 9102554
Filing Date: 2015-08-11
Classification: C02F

Abstract:
1. An apparatus for removing pollutants from water, the apparatus comprising: a first container having a first water inlet for the water to flow into the container and a water outlet for the water to flow out of the container; a second container having a second water inlet that receives water from the first container; a first plurality of electrodes and a first regulated power supply arranged to apply an electric potential to the first plurality of electrodes to generate flocculating metal ions for removal of the pollutants from the water; a second plurality of electrodes and a second regulated power supply arranged to apply an electric potential to the second plurality of electrodes to generate flocculating metal ions for removal of the pollutants from the water; and a controller arranged to monitor and control the regulated supply, the controller being further arranged to adjust the rate at which water flows through the first water inlet to match a current passing through the water when the electric potential is so applied to provide the water being treated with a predetermined charge dose per unit volume of water; wherein the controller is arranged to determine when one of the first regulated power supply and the second regulated power supply is unable to provide a preset current and in response matching a percentage reduction in the current of the first regulated power supply or the second regulated power supply with the other, and adjust the rate at which water flows through one or more of the first and second water inlet, to provide the water being treated with a predetermined charge dose per unit volume of water.