Treating industrial wastewater by reverse osmosis

Nitrogen is important for all living matter. However, extreme release of nitrogen into water bodies can lead to the acceleration of eutrophication in natural aquatic environments. Therefore, removal of nitrogen is very important. This article focuses on reviewing the different methods used for nitrogen removal from wastewater, including physicochemical, chemical, bio electrochemical and biological techniques. The review paper examines the differences among the removal methods in terms of duration and overall efficiencies. The combination of different methods is recommended based on the advantages of each method for treating wastewater effectively and economically.