Mycelial wastes of Penicillium resulted in great quantities from pharmaceutical industry were studied regarding their ability for heavy metal ions (Cd(II), Pb(II)) removal from synthetic aqueous solutions. Different preliminary treatments were applied to mycelial wastes in order to use them during biosorption experiments. The main parameters of the bio sorption process were studied: pH solution, heavy metal ions and biomass concentrations and the type of metallic salt anion. Equilibrium sorption isotherms of Cd(II) and Pb(II) follow the typical Langmuir adsorption model. The loaded inactive biomass was separated from the aqueous solutions by dissolved air flotation and consequently was submitted to elution for heavy metal ions recovery. The following parameters were studied for the biosorption-flotation process: pH, sorbent-metallic ion contact time and metallic ion concentration in order to obtain an effective separation of the loaded biomass from the aqueous solution.
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