LifeStraw
LifeStraw is a water filter . It removes particles such as sediment or microorganisms (bacteria and parasites) from a size of 200 nm.
The filter was designed by Vestergaard Frandsen . The filters were used, for example, after the earthquake in Haiti in 2010 and after the floods in Pakistan in 2010 and in Thailand in 2011.
construction
LifeStraw is a 310 mm long plastic tube with a 30 mm diameter. The water drawn through a straw passes through hollow fibers, which physically filter out particles larger than 200 nm without using chemicals. While the initial model did not remove Giardia intestinalis parasites, it is now 99.9% of the time. One device filters up to 1000 liters of water.
Alternatives
The LifeStraw filter is comparable to the DrinkPure filter from a Swiss company, which also purely physically filters out smaller particles from 90 nm through suction pressure, but does not manage 1000 liters like the Lifestraw filter, but up to 300 liters.
See also
Web links
Individual evidence
- ↑ LifeStraw Features
- ↑ Vestergaard Frandsen: Does LifeStraw filter out parasites like Cryptosporidium and Giardia? ( Memento of the original from July 17, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Longevity and efficacy ( Memento of the original from January 29, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ World Changing: Tools, Models and Ideas for Building a Bright Green Future
