Fully compliant treatment technologies for acid production from pyrite and acidic waste gas generated in smelting processes
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Acid production from pyrite, as well as acid wastewater generated in non-ferrous metal smelting, generally contains large amounts of heavy metal ions and arsenic ions. The traditional process involving sulfidation, gypsum production using limestone, and two-stage neutralization and oxidation makes it difficult to meet the standards regarding the quality of gypsum sludge and the final effluent; as a result, companies face high costs associated with treating such acidic wastewater and significant legal risks. It is possible to address these issues by exploring technologies that ensure compliance throughout the entire process
We have achieved zero discharge of acidic wastewater from smelting processes; we have practical examples from our own operations, which were established in 2018