METHOD AND APPARATUS FOR TREATING LIQUID CONTAINING IRON-GROUP METAL IONS, METHOD AND APPARATUS FOR ELECTRODEPOSITION OF CO AND FE, AND METHOD AND APPARATUS FOR DECONTAMINATION OF RADIOACTIVE WASTE ION EXCHANGE RESIN.

摘要

In the electrodeposition treatment of a liquid containing iron-group metal ions, the present invention can achieve, independently of the properties of the liquid, efficient deposition and removal of the iron-group metal ions form the liquid. An anode chamber (2A) provided with an anode (2) and a cathode chamber (3A) provided with a cathode (3) are separated from each other by a cation exchange membrane (5); a liquid containing iron-group metal ions is introduced into the anode chamber (2A), while a catholyte is introduced into the cathode chamber (3A); and an electrical current is applied between the anode (2) and the cathode (3), whereby the iron-group metal ions contained in the liquid in the anode chamber (2A) permeate the cation exchange membrane (5), move into the catholyte in the cathode chamber (3A), and form a deposit of the iron-group metal on the cathode (3).