On Foam Fractionation

Riser Design in Foam Fractionation

The growth of biotechnology has led to renewed interest in the possibility of enriching valuable bioproducts using foam fractionation. This is a separation process in which surface active molecules are separated from a solution by sparging through bubbles of gas. Adsorption of such molecules at the gas/liquid interface causes enrichment in the foam formed above the liquid pool. Previous work ha...

Downstream Processing of Proteins Using Foam Fractionation

Foam Fractionation as a Means to Recover and Fractionate Bioactives

In this research, the optimum conditions for the separation of polyphenols from apple juice (AJ) and the separation of BSA from a BSA/water solution were found by looking at the enrichment ratio (ER) and recovery. A mixture of the AJ and BSA was also studied to see how the different conditions affect separation of either compound. For AJ only, maximum ER was achieved at a feed concentration of ...

Removal of Mercury by Foam Fractionation Using Surfactin, a Biosurfactant

The separation of mercury ions from artificially contaminated water by the foam fractionation process using a biosurfactant (surfactin) and chemical surfactants (SDS and Tween-80) was investigated in this study. Parameters such as surfactant and mercury concentration, pH, foam volume, and digestion time were varied and their effects on the efficiency of mercury removal were investigated. The re...

Theoretical analysis of the performance of a foam fractionation column.

A model system for theory and experiment which is relevant to foam fractionation consists of a column of foam moving through an inverted U-tube between two pools of surfactant solution. The foam drainage equation is used for a detailed theoretical analysis of this process. In a previous paper, we focused on the case where the lengths of the two legs are large. In this work, we examine the appro...