Evaluation of a coal biodesulfurization process (semi-continuous mode) on the pilot plant level

The biodesulfurization process of coal from the municipality of Puerto Libertador (Córdoba, Colombia) with high-sulfur content (Spyritic = 1.03%, Sorganic = 0.9%, Ssulfates = 0.1%) was carried out in a 4,000 L stirred tank reactor. A mixed culture of A. ferrooxidans and A. thiooxidans was used. The...