Which of the following technologies can be used for sewage treatment?
1. Membrane Bioreactor
2. Moving Bed Biofilm Reactor
3. Sequencing Batch Reactor
Chose the correct answer from the codes given below:

Answer: [D] 1, 2 & 3

All the above. There are three widely used technologies for sewage treatment viz., Membrane Bioreactor, Moving Bed Biofilm Reactor and Sequencing Batch Reactor.

This question is a part of GKToday's Integrated IAS General Studies Module