Emulsion liquid membrane (ELM) is an emerging technology to remove the hydrocarbons from industrial wastewater and water. For the first time, the effects of the combination of magnetic nanoparticles and ionic liquid in ELM (water/organic/water) on the removal efficiency of 4-Nitrophenol as an example of hydrocarbons from synthetic wastewater was investigated. The 4-Nitrophenol removal efficiency of 99 % in 1 min was achieved and the emulsion stability was improved significantly to 81 % for 6 hours with the use of combination of surface-modified 0.05 % (W/W) magnetic Fe22O3 nanoparticles and 0.05 % (V/V) ionic liquid [BMIM]+[NTf2]- in ELM. Demulsifying emulsifier particles from the interfaces of the droplets can be enhanced by using a magnetic force without causing a change in the oil phase chemistry. The outcomes of this study can be extended to the removal of other hydrocarbons and polar pollutants from industrial wastewater and water.