Wed, 28/09/2005 / Wed, 28/09/2005

Tue, 06/09/2005 / Thu, 08/09/2005

Chartered Institution of Water and Environmental Management (CIWEM)

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

International Water Association

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)

Mon, 06/02/2006 / Wed, 08/02/2006

Dechema

Wed, 20/09/2006 / Fri, 22/09/2006

UNESCO;The Public Research Center– Gabriel Lippmann;FRIEND V;IAHS – International Association of Hydrological Sciences

Wed, 11/01/2006 / Wed, 11/01/2006

The Chartered Institution of Water and Environmental Management (CIWEM)

Tue, 09/05/2006 / Mon, 10/04/2006

IFAES

Tue, 27/06/2006 / Fri, 30/06/2006

Sun, 10/09/2006 / Tue, 12/09/2006

American Water Works Association (AWWA)