Abstract:
A photoelectrochemical cell according to an embodiment of the present invention comprises a container; a partition dividing the container into a first region and a second region and having a first surface facing the first region and a second surface facing the second region; a first electrolyte contained in the first region; a second electrolyte contained in the second region; a first electrode positioned on the first surface of the partition; a second electrode positioned on the second surface of the partition; a first photocatalyst layer positioned on the first electrode; a second photocatalyst layer positioned on the second electrode; and an electrolyte passage connecting the first region and the second region and allowing the first and second electrolyte to move in one direction.
Abstract:
PURPOSE: An electricity regenerative water softening device and a method for operating the same are provided to treat high concentration of inflow water by regenerating cation exchangers based on an electrochemical method. CONSTITUTION: A method for operating an electricity regenerative water softening device comprises the steps of: supplying inflow water into an ion exchanging chamber (17) of an electricity regenerative water softening device without electric currents; absorbing hard ions; supplying a part of treated water from the ion exchanging chamber into either a first electrolyte chamber (13a) or a second electrolyte chamber (13b); applying electric currents to a first electrode (11a) and a second electrode (11b); and regenerating cation exchangers. [Reference numerals] (AA) Treated water; (BB) Inflow water
Abstract:
PURPOSE: A filter apparatus and the operating method thereof are provided to be effectively applied when the ion concentration is high among the inflow water and improve the efficiency of electricity regeneration of the filter apparatus by reducing the grade of the absorption concentration according to the direction of the flow. CONSTITUTION: The filter apparatus comprises the anode, the cathode, and a pair of ion exchanger which arranged between the anode and the cathode, the fluid path (13), and the ion exchanger (13a) which fills the fluid path. The fluid path positioned between a pair of cation exchange film is spread from the inlet port toward the outlet according to the fluid path. The fluid path has a shape that increases the flow rate per cross section according to the direction of the fluid path. The cross section of the fluid path of the outlet is smaller than the cross section of the fluid path of the inlet. [Reference numerals] (AA) Channel direction (absorption direction); (BB) Recovery direction