Date of Award


Degree Name

Bachelor of Science


Paper Science and Engineering


The following investigation deals with primary clarification by use of froth flotation techniques. A primary amine was compared to a secondary amine in their collection properties at three pH values. pH variation was found to have an effect on the water content in the foam and the amount of solids collected. A higher pH showed less water content in the foam resulting in higher solids content.

The study indicated that sedimentation had better percent solids coupled with it being a less expansive operation enables it to continue while more efficient methods in flotation are sought out.