Biotechnology in the mining and metallurgical industries: cost savings through selective precipitation of metal sulfides
The Paques core technology, marketed under the name THIOPAQ®, consists of various high‑rate biological processes for metal‑sulfur‑water systems, complemented with common solid/liquid and gas separation steps. Sulfur species are converted to sulfide, which is a valuable component as it can be used for metals reduction and precipitation. Selective recovery of valuable metals can be employed, leading to revenue from metal values. In this paper, biotechnological systems for the treatment of metal sulfate solutions and dilute SO2 gases are described.