montelatici
Member
The previous poster is correct, if you have iron in your water As will be removed, where the iron levels are not high enough to remove Arsenic the post treatment with Catalytic Carbon (Arsenic Polishing) is required.
Desperate need for help with Whole House Water Treatment...
- Thread starter ChadWright
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ditttohead
Water systems designer, R&D
Huh? Catalytic carbon for arsenic reduction? Please send me the literature on that.
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I have a Centaur Carbon backwashing filter for iron+sulfur.
I had a lab test on my raw water that shows 0.006 mg/L of arsenic. I also had a post-filter (but pre-softener test) and it showed <0.002 mg/L (meaning below the detection level of the test). Hardly impressive, but it is something. In contrast both water tests showed 134 mg/L for Sulfate. The sulfate makes me think my powered anode is not in vain. Silica went from 18.2 mg/L to 18.3 -- essentially no change.
ditttohead
Water systems designer, R&D
The iron collected on the media between backwashes is the arsenic reduction protion, it acts similar to GFH medias.
