Biological iron oxidation by Acidithiobacillus ferrooxidans in a packed-bed bioreactor

M. M. Mesa, M. Macías and D. Cantero

Abstract
The aim of the work described here was to obtain the preliminary kinetic data required to design an industrial bioreactor and to integrate the system into a process to eliminate the H2S present in biogas. An analysis of the evolution of bioreactor performance with time (150 days) was performed in order to assess the feasibility of this technique on an industrial scale. A good oxidation rate was obtained despite the transport problems encountered due to occlusion of the porous support.

This work is licensed under a Creative Commons Attribution 4.0 International License

Keywords
Acidithiobacillus ferrooxidans, immobilization, polyurethane foam, biogas, Hydrogen sulfide