[HN Gopher] Water-purifying cup makes drinkable water from creek...
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       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.
        
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       (page generated 2023-08-28 23:00 UTC)