Hydraid® BioSand Filter

E. Neal Caldwell, John Kevin Hodges

Hydraid is a plastic bodied biosand filter used to purify water.

Product description Brand name and product description

The Hydraid® BioSand Water Filter is a patented, lightweight, household, point-of-use filter powered by gravity. The filter design is inspired by the open-source BioSand Filtration technology but uses a lightweight plastic housing instead of concrete. It is suggested that this technology is more portable, scalable and affordable compared to traditional concrete filters.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Today there are more than 75,000 Hydraid water filters in 46 countries. Specific countries are unknown.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Triple Quest – a collaborative social enterprise between Cascade Engineering and The Windquest Group (a West Michigan private investment fund) partners with entrepreneurs and NGOs in the developing world to make the Hydraid biosand filters available. Hydraid works with the local organizations to import the plastic containers, create the sand filter, and educate users.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

The capital cost of the Hydraid is $25 – $75 USD depending on subsidy. NativeEnergy, offsets costs via carbon credits to help finance filter production and implementation; Program, transportation and education costs are not included. Costs will vary depending on location.

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Membrane filtration systems, Community scale purification systems, Point-of-use filtration equipment, Chlorination and other Biosand Filters

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 6: Clean water and sanitation

Target user(s) Target user/consumer base (country, income segment)

Households without access to clean water.

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