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Hexavalent Chromium Removal

ARoChrome: Cr(VI) → Cr(III) solids

– Targeting Cr6+ in water supplies

Successful Application on Hexavalent Chromium Removal – Burbank, CA

Former Aerospace Manufacturing Site with Hexavalent Chromium in Groundwater

  • ARo system installed, no post aeration and filtration steps
  • Ran 205 days on unspiked feed
  • Began Cr(VI) spike to feed, ran 248 days
  • No use of coagulant/filtration steps that could remove additional Cr(III)














Analyte Inlet Final Product
Nitrate-N(mgN/L) 8-9 <0.3
Chromium(VI)(ug/L) 4-6 <1
Chromium total(ug/L) 4-6 3-4
Spiked Cr(VI)(ug/L) 15-25 <1
Chromium total(ug/L) 15-25 7-12
Spiked Cr(VI)(ug/L) 40-50 <2
Chromium total(ug/L) 40-50 15-20


For more information for APTwater technologies on Hexavalent Chromium Removal, please contact APTwater at info@aptwater.com or (916)779-7651.