When the turbidity of the filtered water is controlled at 7 NTU and 0.1 NTU respectively, the residual aluminum in the filtered water can be controlled at 0.05 mg/L and 0. 02mg/L accordingly.

• 当控制过滤水的浊度分别为7NTU和0.；1NTU时，过滤水的余铝可分别控制在0