Full-scale radium-removal system for a small community. Research report, 1 October 1985-30 September 1987
A radium-removal treatment plant was constructed for the small community of Redhill Forest in the central mountains of Colorado. The plant consists of iron removal using oxidation, filtration, and settling; radium and hardness removal using ion exchange; and radium removal from the waste brine using Dow Chemical Company's Radium Selective Complexer (RSC). The raw water comes from deep wells and has naturally occuring radium and iron concentrations of about 30-40 pC/L and 7-10 mg/L, respectively, and is aerated before entering the main treatment plant to remove radon gas and carbon dioxide. A unique feature of the plant is the process that removes radium from the waste brine. The process removes only radium from the spent ion-exchange regeneration water by permanently complexing the radium on the RSC. The RSC is replaced when exhausted and sent to a final disposal site that is acceptable to state regulatory agencies. The overall plant reduces radium from about 35 pCi/L to less than 4 pCi/L. The RSC system has consistently removed over 99% of the radium from the spent ion exchange regenerant. The average inflow radium concentration to the RSC was about 1180 pCi/L, and the average effluent was about 9 pCi/L.
- Research Organization:
- Redhill Forest Property Owners Association, Fairplay, CO (USA)
- OSTI ID:
- 6737898
- Report Number(s):
- PB-88-237904/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BRINES
WASTE WATER
DRINKING WATER
WATER TREATMENT
GROUND WATER
RADIUM
REMOVAL
AERATION
COLORADO
IRON
LIQUID WASTES
MANGANESE
PROGRESS REPORT
WASTE DISPOSAL
ALKALINE EARTH METALS
DOCUMENT TYPES
ELEMENTS
FEDERAL REGION VIII
HYDROGEN COMPOUNDS
MANAGEMENT
METALS
NORTH AMERICA
OXYGEN COMPOUNDS
TRANSITION ELEMENTS
USA
WASTE MANAGEMENT
WASTES
WATER
520300* - Environment
Aquatic- Radioactive Materials Monitoring & Transport- (1989)