Antimony (Sb) is naturally occurring in small quantities in water. Drinking water standards for antimony is 6 ppb. High levels of antimony are commonly found near coal burning and petroleum refineries, fire retardants, ceramics, and electronic manufacturers. EPA recommends treating antinomy with coagulation/physical filtration and reverse osmosis. Hydrosil recently worked with a company on treating high levels of anatomy and they tried both treating the contaminated water with ferric chloride and pumping and treating it with HS-250-AC. See results below to understand how well HS-250-AC works when treating antimony.
|Raw Water||5 ppm Ferric Chloride||10 ppm Ferric Chloride||20 ppm Ferric Chloride||HS-250-AC|
|Antimony, Total (mg/L)||0.155||0.145||0.142||0.139||0.02|