Method and apparatus for regenerating deactivated denitration catalyst

An apparatus for regenerating a deactivated denitration catalyst, comprising:

• a tank having a bottom wall and a surrounding wall which extends upwardly from an outer periphery of said bottom wall to define an inner space;
• a partition wall extending upwardly from said bottom wall to partition said inner space into a reservoir chamber for accommodating a water-contained liquid, and a treatment chamber for accommodating the deactivated denitration catalyst and a washing fluid including the water-contained liquid and entrained carbon dioxide bubbles, said partition wall being configured to permit an excess of the washing fluid in said treatment chamber to overflow into said reservoir chamber through an upper edge of said partition wall, thereby serving a portion of the water-contained liquid;
• a gas supplying device for supplying carbon dioxide;
• and
• a fluid-providing device coupled to provide the washing fluid to said treatment chamber, and including a mixer pump which is configured to mix the carbon dioxide from said gas supplying device and the water-contained liquid from said reservoir chamber so as to obtain the washing fluid, thereby permitting the washing fluid to be provided to said treatment chamber.