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- W5116750 abstract "Improved precipitation and ion-exchange methods are being developed to decontaminate Oak Ridge National Laboratory (ORNL) process wastewaters containing small amounts of {sup 90}Sr and {sup 137}Cs while minimizing waste generation. A wide range of potential processes have been tested in laboratory-scale scouting tests. Based on the data from these scouting tests, several alternative flowsheets have been developed for long-term upgrade of the facility. The primary objective of these proposed flowsheets is to minimize secondary waste generation, particularly liquid wastes, and produce a nonhazardous waste form that can be safely stored with minimum surveillance. The most promising process consists of passing wastewater through a series of columns containing chabazite zeolite, an inorganic ion-exchange material, to remove both cesium and strontium. The flowsheet has the advantage of being a simple, reliable process that produces one type of solid waste. The feasibility of this process has been demonstrated using pilot-scale equipment at the Process Waste Treatment Plant (PWTP). A single near-full-scale column has also been tested at the PWTP for cesium removal. This report summarizes the results of both chabazite tests performed at the PWTP in 1987. 16 refs., 12 figs., 3 tabs." @default.
- W5116750 created "2016-06-24" @default.
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- W5116750 date "1989-12-01" @default.
- W5116750 modified "2023-09-26" @default.
- W5116750 title "Pilot-scale demonstration of process wastewater decontamination using chabazite zeolites" @default.
- W5116750 doi "https://doi.org/10.2172/5066633" @default.
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