Chlorine is the best ...
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
Chlorine is the best effective, inexpensive, readily available, easy to use all around disinfectant. It works for just about everything except cryptosporidia. Fair for Giardia. Water should be filtered to low turbidity . That will remove crypto and Giardia and will allow most effective use of chlorine. The TOC content determines the DBP production. Low TOC = low DBPs. Ozone is more potent, but it has a lot of drawbacks in costs, need for pretreatment, no disinfectant residual, hard to manage, high energy demand.