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Open letter to Johannesburg Summit                            February 2002
            Division for Sustainable Development, United Nations
Presented for the PREPCOM 2,  28 January - 8 February 2002, New York, USA
By Fax to: 1-917-367 2341 and to all delegates, observers, NGOs and journalists
                                                                                                   (please distribute further to support this initiative)

 

Sustainable Sanitation is a key to Sustainable Development!

  • Conventional sanitation can only operate with high water consumption
  • Conventional sanitation has been developed without consideration of water and fertiliser reuse thus depriving the served region of valuable resources
  • Mixing the small amount of dangerous faecal matter with large amounts of water spreads pathogens to receiving waters - often without treatment as it can be seen all around the world
  • Conventional sewerage systems do flood the streets with raw wastewater in countries with heavy rainy seasons in too many cases               (just to name a few of the many problems) 

replace "sanitation" with "sustainable sanitation"

 

  • Sustainable sanitation is designed for low water consumption (demand side management) and aims for full reuse of water and fertiliser
  • Sustainable sanitation is often based on source control of faecal matter to secure highest hygienic standards and keep it apart from freshwater
  • Sustainable sanitation is adaptable to the socio-economic conditions trough the use of high- to low-tech technologies
  • Sustainable sanitation allows economic water reuse by separate collection and treatment of greywater, the fraction of wastewater not polluted with feacal matter
  • Sustainable sanitation is often decentral and is capable to provide high performance at low costs – user involvement and proper maintenance is a key to success

 
Please do consider these key issues for sustainable developement for the Johannesburg summit!

Prof. Dr.-Ing. Ralf Otterpohl (responsible and available for further information)    otterpohl@tuhh.de
Dirctor, Institute of Municipal and Industrial Wastewater Management, TUHH, Technical University Hamburg, Germany 
Tel. +49-40-42 878-3007,

cellphone +49-173-21 62 048        (mail your support, too)

Prof. Dr. Willi Gujer    gujer@eawag.ch Swiss Federal Institute of Technology, Member of directorate of Swiss Federal Institute for Environmental Science and Technology, EAWAG, Duebendorf, Switzerland

Prof. Dr.-Ing. Peter Krebs     pkrebs@rcs.urz.tu-dresden.de
Director, Institute for Urban Water Management, Dresden University of Technology, Germany

Prof. Dr. Mogens Henze   mh@IMT.DTU.DK
Professor, Head of Department Environment & Resources DTU, Technical University of Denmark


Prof. Dr. Heinz A. Preisig    H.A.Preisig@tue.nl

Professor of Systems & Control Technical University Eindhoven, Eindhoven, The Netherlands

Prof. Dr.-Ing. Raimund Haberl   raimund.haberl@boku.ac.at
Director, Institute of Water Provision, Dept. Sanitary Engineering, Univ. of Agricultiure, Vienna, Austria

Prof. Dr.-Ing. Peter Wilderer   Peter.Wilderer@bv.tu-muenchen.de
Director, Institute of Water Quality Control & Waste Managment, Technical University Munich, Germany


Prof. Dr. Goen Ho   ho@essun1.murdoch.edu.au

Director, Environmental Technology Centre
, Murdoch University, Perth, Australia