Method for producing calcium carbonate

A method for producing calcium carbonate, the method comprising:

• controlling a pH to be less than or equal to 7 by introducing carbon dioxide into a solution or a slurry comprising calcium and one or more elements selected from the group consisting of iron, manganese, silicon, aluminum, and magnesium;
• precipitating a precipitate in the solution or the slurry with the pH controlled;
• removing the precipitate from the solution or the slurry;
• and
• obtaining calcium carbonate by deaerating the solution or the slurry after the removing.