problem 1: What are the main objectives of equalization and proportioning of the industrial wastes?

problem 2: Illustrate the problems related with proportioning industrial waste into the municipal sewers.

problem 3: Illustrate the three main methods of removing the suspended solids?

problem 4: When must you use the flotation for the elimination of suspended solids?

problem 5: Why and when would you are screening for the suspended solids elimination?

problem 6: What are the significant factors influencing the industrial wastewater sedimentation?

problem 7: Why is it significant to eliminate the colloids from wastes?

problem 8: What do you mean by the term colloids?

problem 9: Are colloids all of one type? If of more than one type, what are the major differences?

problem 10: What is meant by the term zeta potential?

problem 11: For what reasons do we add lime to the industrial wastes for colloidal solids removals?

problem 12: Illustrate the name of the processes which are used for industrial wastewaters treatment?