problem 1:

In brief describe the 7 factors affecting the action of disinfectants.

problem 2:

Describe and illustrate the significance of disinfection and the four ways by which it is most commonly attained.

problem 3:

In brief describe and discuss the mechanisms of disinfectants.

problem 4:

Describe the following processes:

(i) Trickling filters

(ii) Activated sludge process

(iii) Discuss why disinfection of sludge is significant and list 8 ways how disinfection of sludge can be achieved.

problem 5:

What is the significance of waste transformations in solid waste management?

problem 6:

Discuss and describe the health and safety issues related to the operation of a transfer station.

problem 7:

If you were to locate a transfer station, what are the factors which you would consider?