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 |