Which one of the following is not used to disinfect treated wastewater ready to be released into natural waterways?
A)chlorine gas
B)ammonia
C)ultraviolet light
D)ozone

Question

Quizplus · Accepted Answer

Ammonia is not used to disinfect treated wastewater. It can actually be a byproduct of the treatment process and needs to be removed before releasing the water into natural waterways. Chlorine gas, ultraviolet light, and ozone are all commonly used to disinfect treated wastewater.

Which One of the Following Is Not Used to Disinfect