The CARBIOSEP project, BIOlogical and Separations treatment cartridges, was selected under the FUI 20 call for projects. This project will ensure the development of an in situ biological treatment solution for black water from the toilets. The objective is to replace effluent storage tanks and disinfection, mostly with chemicals, with a bio-membrane reactor in order to recycle flush water and recover the waste produced. Maintenance will be carried out and continuously monitored by a control-command and geolocation system.