Mié, 28/09/2005 / Mié, 28/09/2005

Mar, 06/09/2005 / Jue, 08/09/2005

Chartered Institution of Water and Environmental Management (CIWEM)

Jue, 01/12/2005 / Vie, 02/12/2005

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

Dom, 10/09/2006 / Jue, 14/09/2006

International Water Association

Lun, 06/02/2006 / Mié, 08/02/2006

Dechema

Mié, 20/09/2006 / Vie, 22/09/2006

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

Mié, 11/01/2006 / Mié, 11/01/2006

The Chartered Institution of Water and Environmental Management (CIWEM)

Mar, 09/05/2006 / Lun, 10/04/2006

IFAES

Mar, 27/06/2006 / Vie, 30/06/2006

Dom, 10/09/2006 / Mar, 12/09/2006

American Water Works Association (AWWA)