Disinfection

Question 1

Chlorates are water soluble disifection by-products (DBP). What’s the chlorate ion?

Answer 1

ClO3-

Question 2

Chlorate PCV level at customer tap

Answer 2

0.25mg/l

Question 3

Dissolution of chlorine

Answer 3

Chlorine rapidly dissolves in a redox reaction producing two species:
1. HYPOCHLORUS ACID (HOCl)
2. HYDROCHLORIC ACID (HCL)

Question 4

HOCl (hypochlorus acid) dissociates into hypochlorite ions (OCl-) and hydrogen ions (H+)

Answer 4

Free chlorine