To further reduce the possibility of biological contamination,MOST treatment plants treat the effluent with
A) fluorine.
B) chlorine.
C) ozone.
D) extreme heat.

Question

Quizplus · Accepted Answer

Chlorine is commonly used in wastewater treatment plants as a disinfectant to kill harmful bacteria and other pathogens. It is effective at low concentrations and relatively inexpensive compared to other treatments. Fluorine can be toxic at higher concentrations and is not commonly used in wastewater treatment. Ozone is effective but expensive and requires specialized equipment. Extreme heat may be used in some treatment processes, but is not typically used as a primary disinfection method due to energy costs.

To Further Reduce the Possibility of Biological Contamination,MOST Treatment Plants