Filtration process is used
Biological action is used
Neither A nor B
Both A and B
Answer is Right!
Answer is Wrong!
The correct answer is: Both A and B.
A trickling filter is a type of biological wastewater treatment system that uses a bed of rocks or other media to support a biofilm of microorganisms. The microorganisms break down organic matter in the wastewater, and the filtered water is then discharged to the environment.
The filtration process in a trickling filter removes suspended solids from the wastewater. The biological action in a trickling filter removes dissolved organic matter from the wastewater.
Both the filtration process and the biological action are important for the proper functioning of a trickling filter.