| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing method and an apparatus of a waste liquid including heavy metals in which heavy metals are separated and removed from the waste liquid including heavy metals which includes heavy metals and a complexing agent forming a chelate with heavy metals to obtain a favorable water quality treatment water.SOLUTION: In a processing method of a waste liquid including heavy metals and a complexing agent forming a chelate with heavy metals, an iron salt is added to the waste liquid, then a hydroxide of an alkali metal is added, a solid matter including heavy metals and iron is precipitated, thereby heavy metals are separated and removed from the waste liquid. |
