Nutrient recovery has the potential to avoid emissions compared with conventional fertilizers. However, the technology has different limitations based on location and adaptation of it. For instance, in developing countries like India, WW collection and treatment has not reached 100%, while advanced nutrient recovery systems are far from reaching reality. Nutrient recovery process has complex stages and substages that must be appropriately evaluated for the technology to be used on an industrial scale. Nutrient recovery systems have reached the demonstration level, which is indicated as TRL 4 -6.