Feasibility Study of a Hybrid Reverse Electrodialysis System for Wastewater Treatment and Energy Production from Reverse Osmosis System Effluent

RO concentrate is often discharged into natural aquatic environments, increasing salinity and threatening marine ecosystems. Recently, new processes have been developed to treat and recover brine from the RO process, with reverse electrodialysis (RED) emerging as a promising solution. RED is an electrical membrane process that separates mineral ions using direct electric current, offering a method to treat high-salinity concentrate from the RO process with moderate energy consumption. In this study, the effluent from the Konarak desalination plant was evaluated for use as feed for the RED system. Results showed that the suspended solids in the effluent were approximately ۱۰,۰۰۰ mg/L, the TDS was around ۵۰,۰۰۰ mg/L, and the water hardness was about ۵ mg/L. The findings indicate that the effluent from the desalination unit is suitable for use in hybrid systems such as RED-RO. The integration of the RED process in desalination plants can lead to a more environmentally friendly approach and achieve greater energy efficiency.

کلیدواژه ها:

Reverse electrodialysis(RED) ، Reverse Osmosis (R.O.) ، Hybrid systems ، Renewable energy ، Wastewater Treatment