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|Type=Tutorial | |Type=Tutorial | ||
|Area=Water | |Area=Water | ||
| − | |Description=<translate>Biosand filter to filter out pathogens in water</translate> | + | |Description=<translate><!--T:1--> Biosand filter to filter out pathogens in water</translate> |
|Difficulty=Medium | |Difficulty=Medium | ||
|Cost=80 | |Cost=80 | ||
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{{ {{tntn|Introduction}} | {{ {{tntn|Introduction}} | ||
| − | |Introduction=<translate>BioSand Filters are field-tested, low-tech, household appliances that use sand, gravel and natural biological processes to filter out pathogens in water, making it safe to drink. | + | |Introduction=<translate><!--T:2--> |
| + | BioSand Filters are field-tested, low-tech, household appliances that use sand, gravel and natural biological processes to filter out pathogens in water, making it safe to drink. | ||
| + | <!--T:3--> | ||
OHorizons, a non-profit international coalition of innovators, has engineered an award-winning breakthrough in the production of concrete BioSand Filters, a Wood Mold, that can be made with 100% locally-sourced materials, tools, and labor, which reduces the financial and technical barriers to BioSand Filter production. The Construction Manual for this Mold is open-source and free to download at http://ohorizons.org/resources/ | OHorizons, a non-profit international coalition of innovators, has engineered an award-winning breakthrough in the production of concrete BioSand Filters, a Wood Mold, that can be made with 100% locally-sourced materials, tools, and labor, which reduces the financial and technical barriers to BioSand Filter production. The Construction Manual for this Mold is open-source and free to download at http://ohorizons.org/resources/ | ||
| + | <!--T:4--> | ||
Including labor each Wood Mold costs between $70-100 and can make around 50 concrete filters in its lifespan. The total material costs for each BioSand Filter (concrete, sand, gravel, outlet tube, diffuser basin, lid, and a clean water storage container) are typically under $25. The filter can clean 44 liters of water per day and serve a family of five in their home for over twenty years if properly maintained. BioSand Filter Treatment Efficiency: Bacteria Up to 98.5%, Viruses 70 to >99%, Protozoa >99.9%, Helminthes Up to 100%, Turbidity 95% <1 NTU</translate> | Including labor each Wood Mold costs between $70-100 and can make around 50 concrete filters in its lifespan. The total material costs for each BioSand Filter (concrete, sand, gravel, outlet tube, diffuser basin, lid, and a clean water storage container) are typically under $25. The filter can clean 44 liters of water per day and serve a family of five in their home for over twenty years if properly maintained. BioSand Filter Treatment Efficiency: Bacteria Up to 98.5%, Viruses 70 to >99%, Protozoa >99.9%, Helminthes Up to 100%, Turbidity 95% <1 NTU</translate> | ||
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{{ {{tntn|Tuto Step}} | {{ {{tntn|Tuto Step}} | ||
| − | |Step_Title=<translate>Wood Mold Construction Manual and Appendix</translate> | + | |Step_Title=<translate><!--T:5--> Wood Mold Construction Manual and Appendix</translate> |
| − | |Step_Content=<translate>The Wood Mold Construction Manual and Appendix are open-source and free to download at http://ohorizons.org/resources/</translate> | + | |Step_Content=<translate><!--T:6--> The Wood Mold Construction Manual and Appendix are open-source and free to download at http://ohorizons.org/resources/</translate> |
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{{ {{tntn|Notes}} | {{ {{tntn|Notes}} | ||
Version du 22 mars 2018 à 19:04
Difficulté
Moyen
Durée
1 jour(s)
Coût
80 USD ($)
Description
Biosand filter to filter out pathogens in water
Introduction
BioSand Filters are field-tested, low-tech, household appliances that use sand, gravel and natural biological processes to filter out pathogens in water, making it safe to drink.
OHorizons, a non-profit international coalition of innovators, has engineered an award-winning breakthrough in the production of concrete BioSand Filters, a Wood Mold, that can be made with 100% locally-sourced materials, tools, and labor, which reduces the financial and technical barriers to BioSand Filter production. The Construction Manual for this Mold is open-source and free to download at http://ohorizons.org/resources/
Including labor each Wood Mold costs between $70-100 and can make around 50 concrete filters in its lifespan. The total material costs for each BioSand Filter (concrete, sand, gravel, outlet tube, diffuser basin, lid, and a clean water storage container) are typically under $25. The filter can clean 44 liters of water per day and serve a family of five in their home for over twenty years if properly maintained. BioSand Filter Treatment Efficiency: Bacteria Up to 98.5%, Viruses 70 to >99%, Protozoa >99.9%, Helminthes Up to 100%, Turbidity 95% <1 NTUÉtape 1 - Wood Mold Construction Manual and Appendix
The Wood Mold Construction Manual and Appendix are open-source and free to download at http://ohorizons.org/resources/
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