2007 - | Dissertation |
1998 - | theses |
2008 | Runner up award des „Sustainability Prize“ der International Water Association (IWA) für „Research excellence in support of sustainable urban water management“ |
2008 - | Specialist Group on sanitation and water management in developing countries, International Water Association chairman |
2004 -2008 | Specialist Group on water and waste technologies and management strategies in developing countries, International Water Association scientific secretary |