Wang، نويسنده , , Yujian and Li، نويسنده , , Hongyu and Li، نويسنده , , Daping، نويسنده ,

3268578

Biosynthesis of natrojarosite by immobilized iron-oxidizing bacteria

10058

Natrojarosite is a very important material. In this paper biosynthesis of pure natrojarosite by immobilized Acidithiobacillus ferrooxidans was described. Scanning electron microscopy (SEM), ICP-AES and XRD analysis revealed the character of natrojarosite. The process is principally influenced by extracellular substances. H+ reduction and the oxidation of Fe2 + can accelerate production of the precipitation. Monovalent cation of the precipitation depends on pH value, especially the type and concentration of monovalent cation in solution. This research thus shows a novel application of A. ferrooxidans.

35

Biosynthesis , Aeration , Immobilized cells , Precipitation , ferrous iron

Studia Iranica

38

38