Activated sludge 100 years and counting : [papers delivered at the Conference Activated Sludge ... 100 Years and Counting! held in Essen Germany June 12th to 14th 2014] Activated Sludge 100 Years and Counting covers the current status of all aspects of the activated sludge process and looks forward to its further development in the future. It celebrates 100 years of the Activated Sludge process from the time that the early developers presented the seminal works that led to its eventual worldwide adoption. The book assembles contributions from renowned world leaders in activated sludge research development technology and application. The objective of the book is to summarise the knowledge of all aspects of the activated sludge process and to present and discuss anticipated future developments.