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U.S. Department of Energy
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Charcoal bed operation for optimal organic carbon removal

Technical Report ·
OSTI ID:133018
 [1];  [2]
  1. Niagara Mohawk Power Corporation, Lycoming, NY (United States)
  2. Chem-Nuclear Systems, Inc., Columbia, SC (United States)
Historically, evaporation, reverse osmosis or charcoal-demineralizer systems have been used to remove impurities in liquid radwaste processing systems. At Nine Mile point, we recently replaced our evaporators with charcoal-demineralizer systems to purify floor drain water. A comparison of the evaporator to the charcoal-demineralizer system has shown that the charcoal-demineralizer system is more effective in organic carbon removal. We also show the performance data of the Granulated Activated Charcoal (GAC) vessel as a mechanical filter. Actual data showing that frequent backflushing and controlled flow rates through the GAC vessel dramatically increases Total Organic Carbon (TOC) removal efficiency. GAC vessel dramatically increases Total Organic Carbon (TOC) removal efficiency. Recommendations are provided for operating the GAC vessel to ensure optimal performance.
Research Organization:
Electric Power Research Inst., Palo Alto, CA (United States); Williams (Paul) and Associates, Medina, OH (United States)
OSTI ID:
133018
Report Number(s):
EPRI-TR--105134; CONF-940746--
Country of Publication:
United States
Language:
English