Blue Filter purifies polluted and salty groundwater using natural plant seeds. No power grid, no chemicals, no waste.


Blue Filter uses an innovative plant-based filtration system that treats polluted groundwater naturally, without chemicals, electricity, or environmental harm.
Plant seed-filled molds are placed in water basins or tanks, where they pull contaminants out of the water. The approach earned international recognition for research using chia seeds to remove nitrates.
Three simple ideas make the system resilient exactly where infrastructure has collapsed.
Blue Filter employs an innovative plant-based filtration system that uses natural plant seeds to treat polluted groundwater without chemicals, electricity, or environmental harm. Plant seed-filled molds are placed in water basins or tanks to treat polluted water naturally. The technology gained international recognition for research using chia seeds to remove nitrates.
In Gaza, nitrate levels in groundwater measure up to 10 times higher than WHO standards, only 4% of groundwater is potable, and over 90% of families lack access to safe drinking water. Blue Filter addresses both nitrate contamination from agricultural runoff and sewage, and saltwater intrusion from over-pumping coastal aquifers.
Green technology, chemical-free, no electricity required, sustainable and locally applicable.
Independently measured in field and lab tests. Bars show removal efficiency; qualitative results are marked as removed.
| Contaminant | Removal |
|---|---|
| Nitrates | 98% (94-98% in field and lab tests) |
| Chlorides | 90% |
| Salinity | 70% |
| Heavy metals | Removed (Removed) |
| Pathogens | Removed (Removed) |
Gaza sits on a collapsing coastal aquifer. Decades of over-pumping, agricultural runoff, and sewage have made most of its groundwater unsafe to drink.
Every design choice keeps the system sustainable, affordable, and usable by local communities.
The system works without a power grid, so it keeps running when the grid does not.
Purification is fully plant-based, leaving no chemical residue or hazardous waste.
Natural seeds and simple materials make the process low-cost and low-impact.
Designed to be built, deployed, and maintained by the communities it serves.
Your gift funds filters, repairs, and safe drinking water for families who need it today.