01-24-2009, 12:07 AM
Deionized water is expensive; it has had all mineral content removed, typically with ion exchange resins filters. It's expensive; you normally find it in chemistry labs.
The water supplied to your home has been remediated with something like sodium hydroxide to precipitate out harmful cations such as lead, mercury, uranium etc. Excessive fluoride can can be removed from water by adding calcium salts to precipitate calcium fluoride out of the water, or fluorides can be removed by adsorption to activated charcoal.
Chelating agents? These are typically used by doctors to treat patients with heavy metal poisoning.
The water supplied to your home has been remediated with something like sodium hydroxide to precipitate out harmful cations such as lead, mercury, uranium etc. Excessive fluoride can can be removed from water by adding calcium salts to precipitate calcium fluoride out of the water, or fluorides can be removed by adsorption to activated charcoal.
Chelating agents? These are typically used by doctors to treat patients with heavy metal poisoning.