Cailiao Baohu (Aug 2022)
Study on the Treatment of Nickel - Containing Electroplating Wastewater by Nano - Filtration Membrane
Abstract
In order to provide a reference for the acutal application of nano - filtration membrane in the treatment of electroplating wastewater, a nano - filtration membrane was used to separate the nickel - containing electroplating wastewater, and the effects of operating pressure, operating time, concentration ratio and pH value of wastewater on nanofiltration membrane rejection rate were researched. Results showed that the optimal parameter conditions for the separation of nickel - containing electroplating wastewater by nanofiltration membrane system were as follows: the operating pressure was 0.70 MPa, the operating time was >30 h, the concentration ratio was 2.0 and the wastewater pH value was about 8.0. In this condition, the Ni2+ rejection rate could be about 76%.
Keywords
