Bio Sand Filter

How to build a Bio Sand Filter
The technology was implemented from www.cawst.org and is used all over the world. Essential for basic drinking water without dangerous bacteria's, no running cost and easy to use for everybody. The www.raintree-foundation.org is using these filters in Northern Thailand mostly for poor villages and communities which have limited access to clean water. Proved technology without common power sources and no running cost is a long-term goal of the raintree-foundation. Basic needs like clean and safe drinking water should be more important for everybody.

Category:

Science & Technology

Tags:

• Biosand Water Filter
• Biosand Filter
• BSF
• Water treatment
• slow sand filter
• Thailand
• low
• cost
• water
• treatmentwater
• filter+drinking
• sand
• filter+low
• cost+bio
• filter+cawst