Question 1:
What are the fundamental differences between primary and secondary treatment of waste-water?
Question 2:
How secondary treatment is taken out?
Question 3:
Write a detail note on various types of filters?
Question 4:
Which difficulties we do come across all through the operation of a tricking filter? How they can be controlled?
Question 5:
Write a detail note on the different modes of aeration in activated sludge procedure.
Question 6:
Illustrate the main difference between trickling filter and Rotating Biological Contractors (RBCs)?