1、 Scope of application

Suitable for the clean production transformation of copper and nickel wastewater in the electroplating industry.

2、 Main technical indicators

Key technology: environmental separation and purification system; Three compartment bipolar membrane electrodialysis separation technology.

Technical indicators: Inlet water quality: Nickel concentration: 0.1mg/L~10000mg/L; Effluent quality: nickel concentration ≤ 0.1mg/L; The concentration of the recovered solution (calculated as hexahydrate nickel sulfate) is ≥ 400g/L; The recovered liquid meets the requirements of "Industrial Nickel Sulfate" (HG/T 2824-2009).

3、 Technical characteristics and progressiveness

（1） In the purification process of heavy metal ions (such as nickel, copper, trivalent chromium, etc.), Na+, K+, S02-4, C1-, F -, N03-, etc. in the solution can be separated to ensure the purity and quality reliability of the recovered material, which can be stably returned to the production line for long-term use, thereby ensuring the quality of the plating layer.

（2） In the purification process of heavy metal ions (such as nickel, copper, trivalent chromium, etc.), it is not necessary to add coagulants such as PAC and PAM, which not only saves material costs but also reduces the difficulty of separation and purification in the treatment process.

（3） Membrane components will not experience blockage during use and can be used for a long time, with a lifespan of over five years, greatly saving maintenance costs for membrane components