The result of environmental historian Luke Keogh’s research is published in Flows of Science. Compiled from interviews with scientists and focus groups and nearly 30 hours of recording, Flows of Science is an intimate story of scientists at work. It charts the history of source separation technology at Eawag from 1992 to 2017. Starting with the early influence of sustainable development, and proceeding through projects such as Novaquatis, STUN, VUNA and Blue Diversion, the book charts the pioneering role that Eawag has played in developing source separation.

One of the most compelling streams of this story is the journey that source separation technologies needed to take in order to achieve prominence. From Switzerland to Nepal, then on to Kenya, South Africa, Uganda, source separation technology has arrived back at the NEST building in Dübendorf, Switzerland, bringing new approaches to the Swiss urban water sector.

The book shows that to deliver source separation technology as an innovative new approach to urban water management, it takes teams of people working together over decades.