The invention discloses water treatment equipment for removing carbon dioxide. The water treatment equipment comprises a machine case, controllers arranged in the machine case, a water tank arranged at the upper end of the machine case, electrode heating tubes and a liquid level meter, wherein the electrode heating tubes and the liquid level meter are arranged in the water tank, the upper end of the water tank is open, the water tank is provided with a water inlet tube and a water outlet tube, and a water inlet solenoid valve and a water outlet solenoid valve are mounted on the water inlet tube and the water outlet tube respectively; the electrode heating tubes are electrically connected with the controllers through relays; the liquid level meter, the water inlet solenoid valve and the water outlet solenoid valve are all electrically connected with the controllers. The water treatment equipment can remove carbon dioxide in cleaning process water used in a production process of supercapacitor electrode materials, and has the advantages of being reasonable in structure, easy to operate, high in production efficiency, working stably and saving labor.