Water filters

From Appropedia
Revision as of 23:37, 1 December 2013 by RyanLLamas (talk | Contributions) (Created page with "==Xela Project Water Filtration== The Xela Project, started by [http://www.aidg.org/ The Appropriate Infrastructure Development Group] began manufacturing water filters after...")
(Difference) ← Older revision | Latest revision (Difference) | Newer revision → (Difference)
Jump to navigation Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Xela Project Water Filtration

The Xela Project, started by The Appropriate Infrastructure Development Group began manufacturing water filters after helping communities in Guatemala to purify their water using nothing but a large drum and gravel. At the bottom of the drum was gravel, with progressively finer layers of sand toward the top. When water was put into the drums, friendly bacteria would grow and kill the harmful bacteria in the water [1].


References

  1. Van Horn, R. (2007). Green and Non-Electric Technology. Phi Delta Kappan, 88(8), 630-631.