Question

Which of the following is an example of an attached growth reactor?

• A. Trickling filter
• B. Up-flow anaerobic sludge reactor
• C. Lagoon
• D. Aerobic digestion

Hint:

Attached growth reactors, such as trickling filters, provide a surface for microorganisms to grow and degrade contaminants, making them effective for wastewater treatment.

Answer 1

The Correct Option is A

- An attached growth reactor involves the growth of microorganisms on a solid support material, which provides a surface area for microbial attachment.
- A trickling filter is a type of attached growth reactor, where wastewater flows over a bed of microbial-supporting medi(A) 
Conclusion: 
The correct example of an attached growth reactor is the trickling filter, as given by option (A).