_____ treatment of wastewater often involves the use of trickling filters,activated sludge tanks,and various ponds.
A)Primary
B)Secondary
C)Tertiary
D)Final

Question

Quizplus · Accepted Answer

Secondary treatment of wastewater involves the use of biological methods to further remove pollutants from wastewater. This includes the use of trickling filters, activated sludge tanks, and various ponds to help aerobic bacteria break down and absorb contaminants. Primary treatment, on the other hand, involves physical sedimentation to remove large solids and debris, while tertiary treatment uses advanced methods such as chemical coagulation, filtration, and disinfection to further purify wastewater. Final treatment is not a commonly used term in wastewater treatment and does not accurately describe any specific treatment process.

_____ Treatment of Wastewater Often Involves the Use of Trickling