Printed circuit boards are substrates for integrating components in electronic products and are widely used. However, this process produces a large amount of electroplating copper-containing wastewater, and the wastewater will be added with different components due to the process, resulting in unstable copper concentration treatment. In a printed circuit board factory in Hsinchu, the copper concentration in water can be stabilized below the standard of 1.5ppm through the copper removal and recapture agent, and the stability of the treatment is relatively high.

*The picture shows the difference in the remaining concentration of copper in the water using the copper removal recapture agent and ferric chloride