Adsorptive-bubble separation classification

The following are the classifications of nonfoaming adsorptive bubble separation ... 

A number of processes that utilise the surface active nature of hydrophobic compounds in separating them from the aqueous phase are described in the literature. Of these the so-called adsorptive bubble separations form a class of techniques that utilise air bubbles to concentrate and separate surface active compounds (i). There are two main classifications of these, viz., foaming and non-foaming separations (2). The focus of attention has mostly b n on foam separations. However, in those cases that involve low concentrations of... 

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