OHorizons BioSand Filter¶
BioSand & Media Filters • Est. CapEx: $50 USD • Lifespan: 20 Years (Standardized)
Technical Overview¶
A simple, affordable household water filter using sand, gravel, and biological processes to remove pathogens. Designed for off-grid communities, it relies solely on gravity and can last over 25 years.
Key Specifications & Engineering Parameters¶
| Parameter | Specification |
|---|---|
| Category | BioSand & Media Filters |
| Capital Cost (CapEx) | $50 USD |
| Power / Energy | 100% Gravity / Zero Power |
| Target Scale | Household (5–10 people) |
| Standard Lifespan | 20 Years (Standardized) |
| Technology Maturity | Commercially Available |
| Primary Mechanism | Water passes through a sand column where a biological layer (biolayer) forms; pathogens are removed via mechanical trapping, adsorption, predation, and natural death. The biolayer digests pathogens during a pause period between uses. |
Cross-Reference & Interactive Tools¶
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