Metal biosorption – flotation : Application to cadmium removal
Biosorption, using suspended non-living biomass, and ßotation (for consequent solid/liquid separation of the metal-loaded biomass) have been studied in the laboratory as a possible combined process, for the removal of toxic metals (i.e. cadmium) from dilute aqueous solutions. The various parameters of the process were investigated in depth, including re-use of biosorbent. A Þlter aid (contained in the biomass industrial waste used) was found not really to interfere.Z-potential measurements of the aforementioned system were also carried out. Promising results were obtained during continuous-ßow experiments. A ßotation residence time of 4 min was achieved. Metal removal and suspended biomass recovery were generally over 95%.
Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Θετικών Επιστημών, Τμήμα Χημείας
Applied Microbiology and Biotechnology, vol.45  p.569-573 [Published Version]
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