Fabrication of a poly(piperazine-amide)/polysulfone hollow fiber membrane for effective removal of heavy metals in industrial wastewater

摘要

Hexavalent chromium Cr(VI) has been widely used in metal pickling and plating, which induces cancer and coetaneous allergy in the long time exposure. In this work, a novel thin film composite hollow fiber nanofiltration (NF) membrane was developed, which was optimized by time of interfacial polymerization, concentration of monomers and the IP process. In addition, operational conditions, including PH values, temperatures and operational pressures on the NF performance was further investigated to exhibit potential application in the industrial wastewater treatment and obtained resultant water for biomedical use.