Flotation of Algae, Bacteria and Other Microorganisms

Abstract

Flotation of microorganisms is reviewed while at the same time recent developments in use of these organisms to concentrate heavy metal ions arc noted. Consideration is given to the nature of the organisms' surfaces and how these surfaces should influence their flotation characteristics. Past work on the electrokinetic properties of microorganisms is reviewed. The potential effect of heavy metal ions on surface and flotation properties of the organisms is discussed. Although work has not been performed to date on combining microorganism concentration of metal ions with froth flotation, the combination may prove to be an attractive means of treating metal containing waste streams.