Study on a new surfactant for removal of phenol from wastewater by emulsion liquid membrane.
Removal of phenol from wastewater using emulsion liquid membrane (ELM) is studied in present study. A new polyamine-type surfactant was synthesized and used for stabilizing of the emulsion phase. The results for the emulsion made by the synthesized surfactant showed much better stability and performance in the separation process compared to that by conventionally used Span 80. To determine the optimum operation conditions, the effect of several parameters such as emulsifier concentration, concentration of NaOH in the internal phase, oil to internal phase volume ratio, mixing intensity, temperature, solvent type, and stabilizer concentration have been investigated. It was found that under the optimum conditions, more than 98% of phenol can be removed in a single-stage process. The removal efficiency can be increased to 99.8% in a two-stage process.
Mortaheb
Hamid R
HR
Chemistry and Chemical Engineering Research Center of Iran, P.O. Box: 14335-186, Tehran, Iran. mortaheb@ccerci.ac.ir
Amini
Mohammad H
MH
Sadeghian
Fateme
F
Mokhtarani
Babak
B
Daneshyar
Hesam
H
D004655:Emulsions; D008299:Maleic Anhydrides; D008567:Membranes, Artificial; D009821:Oils / Q000737:chemistry; D010636:Phenols / Q000302:isolation & purification*; D011073:Polyamines / Q000737:chemistry; D011095:Polyethylenes; D012972:Sodium Hydroxide / Q000737:chemistry; D013501:Surface-Active Agents / Q000737:chemistry*; D013696:Temperature; D014783:Viscosity; D014865:Waste Disposal, Fluid
D004655:Emulsions; D008299:Maleic Anhydrides; D008567:Membranes, Artificial; D009821:Oils; D010636:Phenols; D011073:Polyamines; D011095:Polyethylenes; D013501:Surface-Active Agents; D012972:Sodium Hydroxide