ECHO Appropriate Technologies: Water Treatment for drinking water
ECHO, Appropriate Technology Department
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This notebook includes sections of solar disinfection, moringa treatment, sand filtration, Kanchan aresenic filter, ceramic filters and other miscellaneous information.
Notebook with various page numbered sections, illustrated
Informations de publication
- Éditeur: ECHO, Inc.
- Dewey Decimal: 628.109
- Bibliothèque ECHO: 628.109 ECH
- Bibliothèque ECHO Asie: TA.001