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This document summarizes research investigating methods for treating wastewater from electroplating processes containing chromium, nickel, and copper. It examines an iron reduction co-precipitation method that was found to effectively remove hexavelent chromium, decompose metal complexes, and reduce chemical oxygen demand. Testing of wastewater from an electroplating plant found that after treatment using this method, concentrations of chromium, nickel, and copper ions stabilized at around 0.1 ppm on averag

Author

Song Nguyen Nguyen

Language

EN