RSSCT Adsorptive Media Compare RSSCT = Rapid Small Scale Column Testing  30-60 days test duration  Up to 5 medias / columns  Equipment available.

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Presentation transcript:

RSSCT Adsorptive Media Compare RSSCT = Rapid Small Scale Column Testing  days test duration  Up to 5 medias / columns  Equipment available free from DES and UNH TAC  PWS collects and pays sample analyses  Daily inspection required

Anion Exchange  Simplest onsite regeneration  Must manage alkalinity / corrosion  Dumping happens!  No As III removal

Iron-Arsenic Oxidation Filtration (aka greensand)  20:1 Iron to As ratio  pH ≤7.5  Chlorine or Permanganate feed  High Backwash Rate Pyrolusite medias  Backwash filter or common septic tank

 A to Z list –“A” = Arsenic drinking water page –“R” = Radon in Air page –“R” = Rads drinking water page –“S” = Small PWS Help Center –“U” = Uranium / rads page  Quick Links “Publications/Factsheets” 