| 摘要 |
<p>In this magnesium recovery method and this magnesium recovery apparatus, anodically electrolyzed water (7a) and cathodically electrolyzed water (7b) both generated by the electrolysis of seawater are separated from each other, an alkaline material is introduced into the anodically electrolyzed water to adjust the pH value of the anodically electrolyzed water, magnesium is allowed to precipitate in the cathodically electrolyzed water in the form of magnesium hydroxide and is then recovered, the pH-adjusted anodically electrolyzed water and the cathodically electrolyzed water after the fixing of a carbonate salt are joined together, and the joined solution is adjusted to the same pH value as that of seawater and is then discharged. In this manner, magnesium can be recovered from seawater while minimizing an environmental load.</p> |
