Treatment of Copper Containing Electroplating Wastewater by Electrothermal Tube Electroplating Ion Exchange Method

Treatment of Copper Containing Electroplating Wastewater by Electrothermal Tube Electroplating Ion Exchange Method

Electrochemical method

The electrochemical method for treating copper containing wastewater has the advantages of high efficiency, automatic control, and low sludge volume. Moreover, the treatment of copper containing electroplating wastewater can directly recover metal copper. The treatment has a wide range of adaptability to the copper concentration in the wastewater, especially for wastewater with high concentration (copper mass concentration greater than 1g/L), which has certain economic benefits. However, the current efficiency is lower at low concentrations.

Treatment of Copper Containing Electroplating Wastewater by 2 Ion Exchange Method

Ion exchange method is one of the main methods for treating copper containing wastewater. And various ion exchange agents are constantly evolving and innovating. There are many types of ion exchangers. The effect of complexing agent on the treatment of copper containing electroplating wastewater by this method is relatively small.

1) Ion exchange resin

The ion exchange resin has a good effect on copper removal, and the resin method has been reported for treating high concentration ammonia copper rinse solution; Some factories also use weakly acidic cation exchange resins to treat acidic sulfate copper plating rinsing wastewater; Some enterprises use strong alkaline anion exchange resins to treat pyrophosphate copper plating wastewater, allowing some of the water to be recycled. In addition, chelating resin has advantages such as good selectivity, large adsorption capacity, and fast exchange rate. However, due to the high price of these chelating resins, most of them remain in the experimental stage and are rarely applied on a large scale in industry.

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