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Factors Affecting Radium Removal Using Mixed Iron—Manganese Oxides
Author(s) -
Mott Henry V.,
Singh Sarabjit,
Kondapally Venkateshwer R.
Publication year - 1993
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.1551-8833.1993.tb06086.x
Subject(s) - radium , manganese , sorption , chemistry , filtration (mathematics) , aqueous solution , water treatment , inorganic chemistry , nuclear chemistry , environmental chemistry , radiochemistry , adsorption , environmental science , environmental engineering , statistics , mathematics , organic chemistry
Batch experiments confirmed that sorption of radium by a mixed iron‐manganese oxide solid phase shows promise for treating radium‐contaminated water. The capacities of these mixed oxides for sorption of radium depend on the composition of the solid phase, the pH of the aqueous solution, and the presence of competing cations. The removal of the oxide‐radium complexes from aqueous suspension by manganese greensand filtration was also investigated. It was found that influent radium concentrations of 100 pCi/L were reduced to 2–9 pCi/L by this process. Additional study of the fate of radium in manganese greensand filters is recommended before this procedure is used for drinking water treatment.