Water Purification: Harmful Chemicals & Possibilities

  • Thread starter Thread starter repugno
  • Start date Start date
  • Tags Tags
    Water
AI Thread Summary
The discussion centers on the removal of harmful chemicals from drinking water, concluding that complete removal is not feasible. Instead, the focus should be on reducing impurities to acceptable levels. The effectiveness of advanced micromembrane filters is noted, as they can achieve near-pure water, but such technology is rarely applied to tap water unless there are severe health concerns. The conversation emphasizes the importance of defining what constitutes harmful substances in water.
repugno
Messages
78
Reaction score
0
Do they remove all the harmful chemicals in drinking water, is it even possible?
 
Chemistry news on Phys.org
No, not all. The best one can do is to reduce the impurities below some level and stop worrying about them.
 
depends on what you define as harmful.

apparently the really fine micromembrane filters available today can obtain near absolute pure water... although this is never used for tape water unless people died drinking the water by normal filteration. :wink:
 
I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
I'm trying to find a cheap DIY method to etch holes of various shapes through 0.3mm Aluminium sheet using 5-10% Sodium Hydroxide. The idea is to apply a resist to the Aluminium then selectively ablate it off using a diode laser cutter and then dissolve away the Aluminium using Sodium Hydroxide. By cheap I mean resists costing say £20 in small quantities. The Internet has suggested various resists to try including... Enamel paint (only survived seconds in the NaOH!) Acrylic paint (only...
Back
Top