With her company mosan, alumna Mona Mijthab is developing mobile waterless toilets that produce fertiliser from faeces.

When Mona Mijthab, from the tranquil town of Dannigkow near Gommern, studied industrial design at university, she certainly could not have imagined that in a few years she would be making a substantial contribution to improving hygiene in the poorest countries of the world. Then, during an internship at the Society for International Cooperation in Bangladesh, the idea of a portable toilet that everyone could afford manifested itself.

This became MoSan - the inexpensive mobile toilet without water or electricity that also produces fertiliser for plants. Ms Mijthab now lives in Guatemala and is the founder of the social enterprise of the same name. The Mitteldeutscher Rundfunk mdr recently devoted a feature to her.