Radium removal using sorption to filter sand

Journal Article · Wed Apr 01 00:00:00 EST 1987 · J., Am. Water Works Assoc.; (United States)

OSTI ID:5785257

Valentine, R L; Mulholland, T S; Splinter, R C

This study evaluated the use of a novel sand filtration process to sorb radium through the use of a periodic dilute acid rinse to maintain sorptive capacity of filters. Laboratory pilot studies using a partially softened groundwater showed the process capable of reducing /sup 226/Ra concentrations by 80 to 90 percent in the presence of iron flocs when daily rinsing was practiced using rhoH 1 (0.36 percent) or pH 2 (0.04 percent) HCl. Similar removals could be achieved in field studies using water containing 9-11 pCi /sup 226/Ra/L. Removals in the field were less when simultaneous iron and radium removal was attempted. In addition, estimates of the total sorptive capacity of the sand obtained in continuous-flow experiments were generally significantly greater than those predicted based on batch results.

• OSTI ID: 5785257
• Journal Information: J., Am. Water Works Assoc.; (United States), Vol. 79:4
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
GROUND WATER
FILTRATION
RADIOECOLOGICAL CONCENTRATION
RADIUM 226
RADIONUCLIDE MIGRATION
WATER POLLUTION CONTROL
ABSORPTION
ACIDIFICATION
ADSORPTION
DILUTION
FILTERS
HYDROCHLORIC ACID
IRON
PH VALUE
REMOVAL
SAND
WASHING
WATER CHEMISTRY
WATER POLLUTION
WATER TREATMENT
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
CHEMISTRY
CLEANING
CONTROL
ECOLOGICAL CONCENTRATION
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ISOTOPES
MASS TRANSFER
METALS
NUCLEI
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL
RADIOISOTOPES
RADIUM ISOTOPES
SEPARATION PROCESSES
SORPTION
TRANSITION ELEMENTS
WATER
YEARS LIVING RADIOISOTOPES
520300* - Environment
Aquatic- Radioactive Materials Monitoring & Transport- (1989)