[HN Gopher] Water-purifying cup makes drinkable water from creek... ___________________________________________________________________ Water-purifying cup makes drinkable water from creeks and streams Author : jdmark Score : 15 points Date : 2023-08-28 21:36 UTC (1 hours ago) (HTM) web link (cockrell.utexas.edu) (TXT) w3m dump (cockrell.utexas.edu) | inportb wrote: | As a result of using this device, you'd drink only the microbes | that are not attracted to your electrode? | JohnFen wrote: | That's a really interesting effect, but as a product, I don't see | how it's superior to modern small form-factor filters from | Sawyer, Katadyn, etc. | | Those don't require electricity, are as good at ridding the water | of microorganisms, and also filter out many harmful non- | biological contaminants. | zwieback wrote: | require replaceable filters, though. I could see that as a | tradeoff. | JohnFen wrote: | True, but those filters last a very long time. The Sawyer | Squeeze (what I use) produces ~1000 gallons of filtered water | before needing replacement[1]. I assume others using the same | technology perform similarly. | | It also filters the water _much_ more quickly. As fast as you | can drink it. | | [1] Assuming you properly maintain it by backflushing every | so often, which is quick and easy, but still necessary. | j0e1 wrote: | > the device was able to remove 99.997% of E. coli bacteria from | 2- to 3-ounce samples taken from Waller Creek in Austin in | approximately 20 minutes, with the capacity to do more. | | Though necessary, is that the only metric needed to label water | potable? | mwcremer wrote: | In CA, _giardia_ is a big concern. | esafak wrote: | What benefits does this offer over a Brita/ZeroWater filter? | cldellow wrote: | Brita/ZeroWater filters make potable water cleaner such that it | tastes better. | | This filter makes non-potable water cleaner such that it won't | kill you/make you seriously ill. ___________________________________________________________________ (page generated 2023-08-28 23:00 UTC)