抄録
Being deduced from the mechanism of dissolving resin in the water, the authors suggested that floating method would be superior to sedimentation method in these treatments. As the results mentioned below, it was confirmed that the above suggestion would be true.
The dissolved resin was made insoluble by the action of polyvalent metallic ions, and then, the deposited resin was negatively charged in the water.
By the addition of cationic polymer coagulant, the resin was bridged and coagulated.
In general, it is considered that resins and coagulants contain some hydrophobic groups in their structure so that they are adsorbed on the surface of bubbles, introduced to the system, and float up on the water surface.
