Black Crocheted Solar Absorber for Water Purification¶

Membranes & Advanced Filtration • Est. CapEx: Low-cost / Locally fabricated

Technical Overview¶

A novel, low-cost solar evaporator made from black crocheted yarn with a superhydrophilic coating. It efficiently evaporates contaminated water, leaving pollutants behind, and is made from affordable materials.

Key Specifications & Engineering Parameters¶

Parameter	Specification
Category	Membranes & Advanced Filtration
Capital Cost	Low-cost / Locally fabricated
Primary Mechanism	The black crocheted structure absorbs sunlight and converts it to heat. Water wicks through the hydrophilic yarn and evaporates from the heated surface, while contaminants remain in the bulk water. The condensed vapor is collected as purified water.
Target Scale	Household / Village Cluster
Standard Lifespan	10 - 20 Years

Engineering Trade-Offs¶

✅ Advantages⚠️ Limitations

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Cross-Reference & Interactive Tools¶

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