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Text Revisors: |
Sylvie Peter |
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Brian Clarke |
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Script Processing: |
Brigitte Hauser |
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Illustrations: |
Heidi Bolliger |
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Lydia Zweifel |
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Wey Photo Atelier |
Copyright © by SANDEC (Water & Sanitation in Developing Countries) at EAWAG (Swiss Federal Institute for Environmental Science and Technology), CH-8600 Duebendorf, Switzerland.
Permission is granted for reproduction of this material, in whole or part, for education, scientific or development related purposes except those involving commercial sale, provided that
- full citation of the source is given
- written request is
submitted to SANDEC
ISBN: 3-908001 -67-6
Publisher: Swiss Centre for Development Cooperation in Technology and Management (SKAT), CH-9000 St. Gallen, Switzerland
Distributor: Intermediate Technology Publications (it), 103-105 Southampton Row, London WC1B 4HH, England E-mail: itpubs@gn.apc.org; Fax.: +44-171 -436 2013
SANDEC
SANDEC's Roughing Filter Project was substantially cofinanced by the Swiss Agency for Development and Cooperation (SDC)
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