Supported liquid membranes for the removal of pharmaceuticals from aqueous solutions

In the following study, extraction of three pharmaceutical compounds: Diclofenac (DCF), ibuprofen (IBP), and carbamazepine (CBZ) by liquid-liquid their transport supported liquid membrane (SLM) using different commercial extractants (Cyanex 923 (Cy923), trioctylamine (TOA), tributylphosphate (TBP), Versatic Acid 10 (neodecanoic acid)) were evaluated. Cy923 was demonstrated to be an efficient extractant for diclofenac removal through a facilitated mechanism from aqueous feed phase stripping hydroxide ions as agent. Around 80 % these pharmaceuticals extracted in 4 h with without extreme alteration pH. As carbamazepine, conditions achieved 10. Variation concentration indicates that higher can obtained 40 Cy923. addition, two polymeric supports (PTFE PVDF) compared selected operational conditions. Finally, lifetime extended soaking material organic solution under vacuum 24 prepared ultrasound-assisted method. Supported membranes present many advantages easily manipulated integrated treatment persistent contaminants water.