COMPARISON BETWEEN SUPPORTED GAS MEMBRANE PROCESS AND SUPPORTED LIQUID MEMBRANE PROCESS FOR THE SEPARATION OF NH3 FROM AQUEOUS-MEDIA CONTAINING NH3 AND CO2

A comparison between the hollow fibre supported gas membrane (SGM) pro cess and the hollow fibre supported liquid membrane (SLM) process for the separation of NH3 from aqueous solutions containing NH3 and CO2 wa s performed. The experimental data as well as the model simulation dem onstrate that the SLM process can remove NH3 from aqueous solutions of NH3 and CO2 at a higher rate than the SGM process when the NH3 loadin g is low or the ratio of NH3 to CO2 is low. This study suggests that t he proper combination of the SGM process and the SLM process can strip NH3 more effectively from aqueous solutions containing NH3 and CO2.