Phenol Extraction from WasteWater Using Emulsion Liquid Membrane: Extraction, Stripping and Breakage Studies

Abstract

Emulsion Liquid Membrane (ELM) has received a lot of interest due to its ease of use and great selectivity for the desired solute. The removal of phenol from aqueous solutions using an emulsion liquid membrane (ELM) has been examined in this work. After adding span80 as a surfactant and xylene as a diluent, the emulsion formulation was completed. According to the preliminary experiment, there is no need to utilize a carrier when preparing the membrane formulation for application. Then, the resulting emulsion was disseminated in the exterior phase to obtain the desired effect. Different factors, such as internal phase concentration, surfactant concentration, homogenizer speed, and stirrer speed, were investigated to see what influence they had. The addition of 4 percent (v/v) span80, 5800 rpm homogenizer speed, and 250 rpm stirring speed resulted in a stable emulsion liquid membrane system, which was then tested for stability. The purpose of this work was to investigate the effectiveness of phenol extraction, stripping in internal phase, and membrane rupture. A concentration of 0.1M NaOH in the internal phase was used in conjunction with a stirring speed of 250 rpm, a feed phase pH of 3.0, and an initial concentration of phenol of 100 mg/L to achieve the highest extraction efficiency. In order to obtain the highest extraction efficiency, stripping efficiency, and membrane breakdown percentages possible, 6 minutes were spent in this environment achieving: 90.82 percent, 92.2 percent, and 1.45 percent, respectively.