Our system uses a special material called hydrogel that soaks up dirty water and uses heat from the sun to turn it into clean drinking water. Gravity does the rest — no pump, no power bill.
You pour dirty water into the top of the unit through a simple opening. No pipes or plumbing needed.
The hydrogel inside the unit absorbs the water and traps harmful germs and heavy metals. It works like a sponge that also cleans.
Sunlight heats the hydrogel through a glass cover. The water turns into vapour, leaving the dirt behind. A small solar-powered light keeps working even after sunset.
The vapour turns back into clean liquid water and flows by gravity into a container. Ready to drink.
The hydrogel is made from chitosan — a natural material found in shellfish shells. It is biodegradable and safe for the environment. When combined with another material called polypyrrole, it forms a soft, sponge-like material that soaks up dirty water while trapping germs and heavy metals inside.
When sunlight hits the hydrogel through the glass cover, it heats up and turns the water into vapour. The vapour rises, leaves the contaminants behind, and then cools down to become clean drinking water. The whole process is natural, chemical-free, and uses no electricity.
| Feature | SOLGEL |
|---|---|
| Energy | Needs no electricity — runs on sunlight only. Works off-grid anywhere. |
| Cost | Easily affordable — much cheaper than other purification systems. |
| Maintenance | No moving parts to break. Community members can take care of it themselves. |
| Lifespan | Lasts about 3 years. Designed for household-level use, schools and community water points |
| Output | Up to 23 litres of clean water per day for every square metre of hydrogel. |
