Acid mine drainage (AMD) poses a serious environmental challenge which threatens water security and the health of the ecosystem. Notably, an increase in world population puts further strain on water resources. The reclamation of AMD presents an opportunity to ease the burden on the global water demand. Various remediation techniques such as ion exchange, bioremediation and neutralisation exist, however membrane technology exhibits a great potential to be employed as an alternative conventional wastewater treatment technique. Notwithstanding the complex mineral content of AMD, it is envisaged that the application of membrane technology in AMD treatment is an ideal approach. In addition, thin film nanocomposite (TFN) reverse osmosis membranes are ideal for treatment as they are able to reject multi-valent ions which are present in AMD. However, membrane fouling and concentration polarisation limit the application of this technology. The inclusion of hydrophilic nanomaterials such as functionalised carbon nanotubes (CNTs) have shown to increase the anti-fouling ability of the membrane. The rejection and flux for all metals tested will be presented. Furthermore, the effect of operating pressure and feed concentration on membrane performance were studied. The antifouling tests were conducted by measuring the pure water flux recovery after testing. Simulation was done using CAPE-OPEN - open source process simulator and the results will be presented