Answer the following questions as they apply to water treatment:
a) In modern water treatment facilities, why is chlorine predominantly used for disinfecting water?
b) Name some of the most common disinfection by-products that are produced when using chlorine as a disinfectant during water treatment?
c) Discuss the toxic effects of these products.
d) How are these disinfectant bi-products removed during water treatment?
e) Knowing the problems associated with using chlorine, would you change the disinfection step in water treatment? Why or why not?