Question 25 What disinfection treatment technology is most c
     Question 25 What disinfection treatment technology is most common for US municipal wastewater treatment plants? Oa. UV light b. chilorine dioxide .sodum and calcium hypochlorite d.ozone o disinfoction with chiorine  
  
  Solution
Ans disinfection with chlorine
In us municipal waste water treatment chlorine widely used for disinfection

