A number of technologies are being used to capture and remove arsenic from smelting stacks and mine tailings. Air pollution can be controlled effectively using scrubbers, electrostatic precipitators, and baghouses in smelters, which are capable of removing up to 99.7% of the dust and fumes produced during roasting and smelting. [13] Mine tailings and wastewater can be treated with iron compounds, which react with the arsenic and remove it from the water. [14] Arsenic can also be filtered from waste and tailings with iron oxides, clay liners, and activated charcoal filters, which can be disposed of safely. [14] The use of plants, wetlands, and iron nanoparticles to remove arsenic from already contaminated areas is also being studied. [14, 15] - http://www.miningfacts.org/Environment/What-is-the-role-of-arsenic-in-the-mining-industry/
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