Biosorption of cadmium with brown macroalgae.

摘要: Abstract Sorption experiments for cadmium removal using two brown macroalgae Lessonia nigrescens and Durvillaea antarctica were carried out. Although both types of algae capable retaining cadmium, differences in their performance observed. The optimum pH was 3.7 ± 0.2, to achieve the equilibrium, 5 days contact time necessary biosorbents. maximum experimental uptake obtained similar biosorbents: 95.3 mg Cd g −1 by D. 109.5 mg Cd g L. nigrescens. Langmuir model described equilibrium sorption isotherms very well biosorbents Lagergren pseudo primer order kinetics satisfactorily Ho Mckay second . It found that faster than