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Decontamination of Radioactive Aqueous Effluent by the Calcium‐Ferric Phosphate Process
Author(s) -
Frost Colin R.
Publication year - 1963
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1963.tb01052.x
Subject(s) - clarifier , human decontamination , precipitation , effluent , ferric , aqueous solution , chemistry , phosphate , wastewater , calcium , radiochemistry , lime , nuclear chemistry , waste management , pulp and paper industry , environmental science , environmental chemistry , inorganic chemistry , environmental engineering , metallurgy , materials science , physics , organic chemistry , meteorology , engineering
This article discusses simultaneous precipitation of calcium and ferric phosphates in the waste as one of the processes considered for use in decontaminating low level radioactive aqueous waste in a Dorr sludge blanket clarifier at Lucas Heights, New South Wales, Australia. Pilot plant decontamination experiments were conducted to determine first the effect of lower concentrations of the precipitating ions, PO 4 3‐ (40 ppm), Ca+ + (30 ppm), and Fe 3+ (20 ppm) at lower pH values on radioactive water removal. Second, batch precipitation experiments were conducted to determine the concentration of dosing ions necessary for complete precipitation at a final pH of 9.5.