Optimization of the BioScorodite process for safe Arsenic disposal

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Arsenic is a major contaminant in the non-ferrous metallurgical industry and treatment of arsenic-rich wastewaters is one of the most important environmental issues for the mining and metallurgical industries. Arsenic in metallurgical waste streams originate in particular from complex ores that are mined for copper, lead, zinc, cobalt, gold and silver. The demand for these metals has grown dramatically in the past years, creating a surplus of arsenic.

The immobilization of Arsenic as the very stable mineral  Scorodite (FeAsO42H2O) is the preferred route to safe long-term storage.