| abstract |
An aluminum automatic measuring apparatus for measuring a high concentration of aluminum containing a solid component and a dissolved component is provided for managing the aluminum concentration in a water purification process. A sample water pump 51 for collecting sample water, an ECR solution pump 57 for adding an eriochrome cyanine red (ECR) solution, an ECR solution tank 56 for storing an ECR solution, and sample water And the first stirring tank 52 to which the ECR solution is supplied, the buffer pump 59 for adding the buffer solution, the buffer tank 58 for storing the buffer solution, and the first stirring tank 52 for stirring and mixing. A second agitation tank 53 to which the liquid and the buffer solution are supplied, and an absorbance measuring device 54 to which the liquid agitated and mixed in the second agitation tank 53 is supplied. [Selection] Figure 1 |