NASA Testing Breakthrough In Water Safety

Jerry James Stone writes "NASA and University of Utah chemists are developing advanced tech for testing the drinkability of water. The process just began a six-month run aboard the International Space Station. Water will be sampled either from the Space Station's or Shuttle's galley using a syringe. It is then forced through a chemically-imbued membrane, which changes color based on toxicity. The process itself will take about two minutes. It checks drinking water for iodine and silver, which are used to kill unwanted microbes."

Comments

Overstated much?

[MadAnalyst]

The device checks for disinfectant (Ag or I). That is neat and all, but I wouldn't go for a "breakthrough in water safety." Sure, disinfectant means fewer bugs in the water. I won't say that isn't one good indicator of safer drinking water. But there is a host of atomic and molecular toxins that the device does nothing about. The EPA regulates for about 20 different things, bacteria being only a small part of it.

Re:It checks Iodine and Silver content?

[clone53421]

The test won't show whether the sieve is working, it'll just show whether you put the right number of iodine droplets in your bucket of filtered river water. Yeah, this is about as innovative as those paper strips you use to check the chlorine level in your pool.