SOLETTO D.

Dry biomass of Spirulina platensis re-hydrated for 48 h was employed as a biosorbent in tests of cadmium(II) removal from water. Various concentrations of biomass (from 1 to 4 g l−1) and metal (from 100 to 800 mg l−1) were tested. Low biomass levels (Xo ≤ 2 g l−1) ensured metal removal up to 98% only at Cdo = 100 and 200 mg l−1, while Xo ≥ 2.0...

Dried and 48 h re-hydrated biomass of Spirulina platensis was employed as a biosorbent in tests of chromium(III) removal from water. Various concentrations of biomass (from 1 to 3 g l−1) and metal (from 25 to 200 mg l−1) were tested. Increasing and re-hydrating biomass allowed removing almost entirely up to Cro = 100 mg l−1 of Cr3+ (95% of...