- Sector: Social enterprise
- Residence: Peru
Medem founded X-Runner, a waterless sanitation system created for the slums of Lima, Peru, where regular toilets are unavailable. X-Runner provides an alternative to pit latrines, which are dangerous for human and environmental health. Faeces are collected by X-runner service trucks, before being treated and turned into nutrient-rich soil. Medem is aiming for her clean and water-free toilets to provide a solution for the 72 million urban Latin Americans without access to modern sanitation.