Technology to prevent water contamination?

Question

What technology exists to help humans handle water contamination? Please help. Any answers would be greatly appreciated.

Answer 1

I assume you mean before ingesting the water.  Chlorine/Bleach is used for this, but it is in very low concentrations. Look at any camping store and you will find tablets to add to your water.

Add two drops of household bleach per quart or per liter for clean looking water. Add four drops per quart or per liter for dirty water (16 drops of bleach per gallon of water). Bleach is a widely accepted method of emergency water disinfection, and is recommended by many agencies. Use only regular household liquid bleach that contains 5.25 percent sodium hypochlorite. Do not use scented bleaches, color-safe bleaches, or bleaches with added cleaners.

Stir or agitate water to disperse the bleach.

Wait 30 minutes and repeats the dosages if there is NOT a slight chlorine odor (you should notice a slight chlorine smell). This odor can be lessened by pouring the water between two containers a couple of times.

Otherwise you can boil the water for several minutes, more minutes for higher altitudes. Anything under 2500 feel altitude you only need 10 minutes.

Iodine works but the water tastes bad.