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