Division 44 Environmental Management, Water, Energy, Transport Sector project ecosan ecosan - closing the loop in wastewater management and sanitation Proceedings of the International Symposium, 30-31 October 2000, Bonn, Germany gtz Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH Division 44 Environmental Management, Water, Energy, Transport Sector project ecosan – ecologically and economically sustainable wastewater management and sanitation systems ecosan – closing the loop in wastewater management and sanitation Proceedings of the International Symposium, 30-31 October 2000, Bonn, Germany Edited by: Christine Werner, Jana Schlick, Gernot Witte, Anke Hildebrandt Eschborn 2001 Published by: Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH Postfach 5180, 65726 Eschborn Internet: http://www.gtz.de Division 44 – Environmental Management, Water, Energy, Transport Sector Project ecosan Responsible: Christine Werner Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH Postfach 5180, 65726 Eschborn, Germany Tel.: ++49-6196-79-0 e-mail:
[email protected] Internet: http://www.gtz.de/ecosan Edited by: Christine Werner, Jana Schlick, Gernot Witte, Anke Hildebrandt Print: UnIversum Verlagsanstalt, 65175 Wiesbaden 04/2001 ecological sanitation – symposium, October 2000 gtz Table of Contents page Programme of the International Symposium on Ecological Sanitation „ecosan – closing the loop in waste water management and sanitation” 1 1 Keynote addresses: Sustainable water management – a global challenge for