Book launch: Applications of Activated Sludge Models - 'Applications of Activated Sludge Models'. The book has been prepared to celebrate the 25th anniversary of Activated Sludge Model Nr. 1 and includes fifteen practical applications of the activated sludge model for optimization, extension, upgrading, retrofitting and troubleshooting of wastewater treatment plants.http://www.unesco-ihe.org/news/book-launch-applications-activated-sludge-models