《Effect of varying piperazine concentration and post-modification on prepared nanofiltration membranes in selectively rejecting organic micropollutants and salts》 was written by Liu, Yan-ling; Zhao, Yang-ying; Wang, Xiao-mao; Wen, Xiang-hua; Huang, Xia; Xie, Yuefeng F.. Synthetic Route of ClNaThis research focused onwastewater treatment piperazine nanofiltration membrane organic micropollutant salt. The article conveys some information:
Nanofiltration (NF) is considered as a promising technol. for the removal of trace organic compounds (TrOCs) for wastewater reclamation, while a simultaneous low rejection of salts is desirable for the ease of using the reclaimed H2O. This study was conducted to exploit the potential of polypiperazine-amide NF membranes in achieving selective separation of TrOCs and NaCl by varying the concentration of the diamine monomer, piperazine (PIP), for interfacial polymerization and by modifying the nascent membrane surface with hydrophilic monomers, diethanolamine (DEA) and monoethanolamine (MEA). Increasing PIP concentration could decrease the membrane pore size and reduce the surface neg. charge d., which led to an increased rejection of xylose and a reduced rejection of NaCl. The grafting of DEA or MEA mols. could further decrease the NaCl rejection, substantially improve the H2O permeability and maintain an effective removal for 8 pharmaceuticals (PhACs). The optimal membrane prepared with a PIP concentration of 2.0% and subsequently modified by MEA exhibited a rejection of NaCl at 33.1% and an average rejection of PhACs at 90.8% in a 10 mmol/L NaCl solution under an applied pressure of 6 bar. The membrane could have an even higher selectivity when the NaCl concentration was increased to higher levels. These results demonstrated the feasibility and versatility of the membrane in separating TrOCs from NaCl for wastewater reclamation. In the part of experimental materials, we found many familiar compounds, such as Sodium chloride(cas: 7647-14-5Synthetic Route of ClNa)
Sodium chloride(cas: 7647-14-5) has been used for the preparation of tris buffered saline, phosphate buffered saline, MPM-2 (mitotic protein monoclonal 2) cell lysis buffer, immunoprecipitation wash buffer, LB (Luria-Bertani) media and dialysis buffer.Synthetic Route of ClNa
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics