What are resin beds in drinking water?

“Ion exchange resin beds, which are part of the treatment unit equipment, are often an attractive growth medium for biological organisms such as bacteria, mold and algae. In some cases, these growths can build up in the resin bed and physically foul the resin. In most cases, however, the concern is that these organisms will contaminate the effluent water leaving the ion exchange system and entering the drinking water supply.”  More information on resin sterilization can be found online.

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1. What are nitrates?
2. What is the concern about nitrate/nitrite in drinking water?
3. What is the treatment for nitrate?
4. What are resin beds in drinking water?
5. Why is water disinfected?
6. What is the filtration process for the disinfection of bacteria in drinking water?
7. What is water chlorination?
8. Is chlorine treatment new?