ION-REMOVAL FROM WATER USING ACTIVATED CARBON ELECTRODES

摘要

An electrode (10) for deionization of water is made of a continuous activated carbon structure. The activated carbon is derived from a synthetic carbon precursor. The structure has openings, inlet (17) and outlet (16) ends such that water entering the inlet end passes through the openings (12) and exits through the outlet end (16), a conductive coating (17) on at least part of the outer surface of the structure, and a metal wire (19) in contact with the structure (10). A deionization system is made up of the electrodes (10) in series so that the outlet end of one electrode (10) is next to the inlet end of the nearest downstream electrode (10). The metal wire (19) of each electrode is connected to a power source. A method of removing ions from water involves removing air from the system, passing a current through the device, and passing a stream of water containing ions through it to remove the ions.