Used powdex resin for liquid waste processing

Technical Report · Mon May 01 04:00:00 EDT 1995

OSTI ID:133019

Pearson, C J; Bramblett, J W

Powdex resin has traditionally been used on the Secondary side for condensate polishing. The resins on these polishers are backwashed periodically based on chemical breakthrough or high differential pressure. Upon the backwash, the ion exchange capacity on the powdex resin is not completely exhausted. In the past, this partially used powdex resin was sluiced to a liner and treated as waste for disposal. In an effort to reduce radioactivity being released from segregated, high chemical concentration wastes, the idea of trying used powdex resin was initiated. In 1992, Duke Power Company began processing problem liquid waste streams with used Secondary powdex and subsequent decanting of the waste water for release. the results have shown significant reductions in the activity of this water. This paper will detail the history, method, and the results of using Secondary powdex for liquid radwaste processing. It will also describe the benefits, such as: (1) Processing waste streams not suitable for bead resin demineralizers. (2) Ability to process large volumes of waste water in a short period of time. (3) Recycling media thought to be useless. (4) > 80% Reduction in activity of water processed. (5) Overall curies reduction. (6) Improved bead demineralizer performance.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Williams (Paul) and Associates, Medina, OH (United States)
• OSTI ID: 133019
• Report Number(s): EPRI-TR--105134; CONF-940746--
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
FEASIBILITY STUDIES
ION EXCHANGE
LOW-LEVEL RADIOACTIVE WASTES
NUCLEAR POWER PLANTS
PERFORMANCE TESTING
RADIOACTIVE WASTE PROCESSING
RESINS
WASTE WATER