Sat, 11/10/2003 / Wed, 15/10/2003

Water Environment Federation

Wed, 19/11/2003 / Sat, 22/11/2003

University of Manitoba (Canada); Ukrainian State University of Chemical Technology (Ucrania); Dnepropetrovsk Municipal Administration (Ucrania)

Tue, 01/06/2004 / Fri, 04/06/2004

International Water Association (IWA)

Tue, 18/11/2003 / Wed, 19/11/2003

Paper Technology Specialists (PTS)

Mon, 26/01/2004 / Thu, 29/01/2004

Asian Institute of Technology

Tue, 09/08/2005 / Tue, 12/08/2008

Instituto Sudafricano del Agua (WISA) y la Asociación Internacional del Agua (IWA)

Wed, 11/05/2005 / Sun, 15/05/2005

Estado Federal de Berlín

Thu, 01/12/2005 / Fri, 02/12/2005

Association of Wastewater Treatment Experts(AWWTE), International Water Association (IWA), Global Water Partnership(GWP), European Water Association (EWA)

Sun, 10/09/2006 / Thu, 14/09/2006

International Water Association

Sun, 19/02/2006 / Wed, 22/02/2006

American Water Works Association (AWWA);Water Environment Federation's (WEF)