Calender
Since 2000 the traditional activated sludge calender of the research center is published. Each year it depicts a different activated sludge organism. In that way we say thanks to our partners, associated persons and friens and wish a "Happy New Year"
Download of Calenders
Calender 2021
Calender 2020
Calender 2019
Calender 2018
Calender 2017
Calender 2016
Calender 2015
Calender 2014
Calender 2013
Calender 2012
Calender 2011
Calender 2010
Calender 2009
Calender 2008
Calender 2007
Calender 2006
Calender 2005