Patent ID: 6673321
Filing Date: 2004-01-06
Classification: C02F,H04H

Abstract:
A system for removing at least one metal dissolved or suspended in an aqueous solution, the system comprising:a) a treatment chamber, the treatment chamber further comprising: i) a chamber body, the chamber body comprising an insulated inner electrode disposed within an uninsulated outer electrode such that a space is defined between the inner electrode and the outer electrode to accommodate flow of the aqueous solution between the inner electrode and the outer electrode in electrical contact with the uninsulated outer electrode; ii) an inlet pipe, the inlet pipe positioned upstream of the chamber body, wherethrough the aqueous solution enters the chamber body; and iii) an outlet pipe, the outlet pipe positioned downstream of the chamber body, wherethrough the aqueous solution exits the chamber body; b) a voltage source connected in a manner that creates an electric field across the insulated inner electrode and the uninsulated outer electrode, but whereas insulation on the insulated inner electrode is positioned in a manner that prevents electric current flow between the insulated inner electrode and the uninsulated outer electrode; c) a bare electric trickle current conductor positioned in the space between the insulated inner conductor and the uninsulated outer conductor and with space for the aqueous solution to flow between the bare electric trickle current conductor and the uninsulated outer electrode, said bare electric trickle current conductor being connected to a trickle current source in a manner that causes a trickle current to flow in the aqueous solution between the bare electric trickle current conductor and the uninsulated electrode; and d) filtering means positioned downstream of the treatment chamber.