Development of ultrafiltration and adsorbents: April-September 1979

Tests were begun on influent from the radioactive waste disposed plant spiked with other actinides, but problems with the laboratory-scale reverse osmosis (RO) unit led to postponement of these tests. Laboratory-scale RO tests on solution spiked with fission products showed very good rejection (98 to 100%) of 60Co, 137Cs, and 131I. A literature search was made for references to actinide and fission product removal from waste streams by adsorbents. A table lists adsorbents and what elements they remove. A cross reference of adsorbents was compiled in a series of tables so that data from different waste treatment reports can be compared. Laboratory column experiments on Co, Cs, and I gave decontamination factors (DF) for several adsorbers. Engineering tests on Am, Pu, U, and Np are reported at several flow rates and at pH values of 3, 7, and 10. DFs for these actinides are reported