he SATURN (Solar Assisted Treatment of Urine with Recovery of Nutrients) technology has its origins a doctorate, whose main goal was to develop a pure physicochemical (non-biological), energy-efficient method for nutrient recovery from urine. . During a previous ConcepTT project, the second automated prototype was built and tested. During the tests "in the field" the same recovery percentages were achieved as in the lab. The SATURN technology has thus demonstrated its potential, but in order to be commercially competitive as a spin-off, several technological challenges have to be resolved. In addition, the marketing strategy and the business plan must be further elaborated. The final goal of this project is to establish a spin-off company based on SATURN technology.