Superfund Innovative Technology Evaluation (SITE)
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|AMBERSORB® 563 Absorbent Technology
The Ambersorb® 563 is a regenerable adsorbent that treats groundwater contaminated with hazardous organics. Ambersorb® 563 adsorbent has 5 to 10 times the capacity of granular activated carbon (GAC) for low concentrations of volatile organic compounds (VOCs ) and can be regenerated on site using steam. Condensed contaminants are recovered through phase separation. Because Ambersorb® 563 adsorbent has a higher capacity for VOCs than GAC (at low concentrations), the process can operate for significantly longer service times before regeneration is required and can operate at higher flow rate loadings. Ambersorb® 563 adsorbent are hard, nondusting, spherical beads with excellent physical integrity, eliminating handling problems typically associated with GAC. Ambersorb® 563 adsorbent is not prone to bacterial fouling and has extremely low ash levels. It is applicable to any water stream containing contaminants treated with GAC, such as 1,2-dichloroethane, 1,1,1-trichloroethane, tetrachloroethene, vinyl chloride, xylene, toluene, and other VOCs. The technology was evaluated at the Former Pease Air Force Base in New Hampshire. The groundwater was contaminated with vinyle chloride, 1,1-dichloroethene, and trichloroethene. The effluent from the Ambersorb® system consistently met drinking water standards.