Passive biosorption of chromium (VI) using microalgae Spirulina platensis [Biossor??o passiva de cromo (VI) através da microalga Spirulina platensis]

摘要

Effluents containing toxic metals are dangerous and more economical, efficient and environmentally friendly treatments must be studied, with the biosorption process with microbial biomass constituting an efficient solution. Thus, the ability of Spirulina platensis biomass for removing chromium (VI) using passive and active biosorption was evaluated. Inactive microalgae biomass and synthetic solution containing chromium (VI) were used to evaluate important factors in the process and biomass biosorption ability. Results of the experiments showed that microalgae have potential for biosorption of chromium (VI), attaining removal of 100.39 mg g~(-1), and that pH was the variable with the greatest influence on the process.