| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device of treating a heavy metal-containing waste fluid, the method and device for separating and removing heavy metals from a heavy metal-containing waste fluid that contains a complexing agent in order to obtain treatment water with excellent quality.SOLUTION: This invention provides a method of treating a waste fluid that contains heavy metals and a complexing agent that forms a complex with the heavy metals, the method including the steps of adding acid to the waste fluid for controlling it to around a neutral region of pH 6 or more, and then adding a first flocculant to precipitate and separate a precipitate. |
