Radium removal from water by manganese dioxide adsorption and diatomaceous-earth filtration. Final report
Abstract
The study reveals that radium adsorption onto precipitated MnO2 followed by diatomaceous earth (DE) filtration is a very effective treatment process for radium-contaminated water. Radium removals in the range of 80% to 97% were observed for performed MnO2 feed concentrations of 0.63 and 1.26 mg/L as Mn in groundwaters with hardness in the range of 100 to 245 mg/L as CaCO3. Radium removal increased slightly with increasing pH whereas it decreased slightly with increasing hardness and iron (II) concentrations. Pilot studies were performed in Lemont, IL using DE filtration on a groundwater containing 12 pCi/L226Ra and 6 pCi/L228. Radium removals for both the pilot plants ranged from 90% to 97% at a MnO2 feed concentration of 1.26 mg/L as Mn, a total hardness of 245 mg/L as CaCO3, and a pH of 6.5. The costs of water treatment by MnO2 adsorption and DE filtration were estimated at $0.71 per 1000 gal for 280,000 gpd plants and $0.47 for 1 Mgd plants.
- Authors:
- Publication Date:
- Research Org.:
- Houston Univ., TX (United States). Dept. of Civil and Environmental Engineering
- OSTI Identifier:
- 5865700
- Report Number(s):
- PB-92-115260/XAB
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: Sponsored by Environmental Protection Agency, Cincinnati, OH. Drinking Water Research Div
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; ADSORBENTS; SORPTIVE PROPERTIES; GROUND WATER; DECONTAMINATION; MANGANESE OXIDES; RADIUM; MATERIALS RECOVERY; ADSORPTION; COST; FILTRATION; PILOT PLANTS; RADIOECOLOGICAL CONCENTRATION; ALKALINE EARTH METALS; CHALCOGENIDES; CLEANING; ECOLOGICAL CONCENTRATION; ELEMENTS; FUNCTIONAL MODELS; HYDROGEN COMPOUNDS; MANAGEMENT; MANGANESE COMPOUNDS; METALS; OXIDES; OXYGEN COMPOUNDS; PROCESSING; RECOVERY; SEPARATION PROCESSES; SORPTION; SURFACE PROPERTIES; TRANSITION ELEMENT COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING; WATER; 540330* - Environment, Aquatic- Radioactive Materials Monitoring & Transport- (1990-); 540130 - Environment, Atmospheric- Radioactive Materials Monitoring & Transport- (1990-)
Citation Formats
Patel, R, and Clifford, D. Radium removal from water by manganese dioxide adsorption and diatomaceous-earth filtration. Final report. United States: N. p., 1991.
Web.
Patel, R, & Clifford, D. Radium removal from water by manganese dioxide adsorption and diatomaceous-earth filtration. Final report. United States.
Patel, R, and Clifford, D. 1991.
"Radium removal from water by manganese dioxide adsorption and diatomaceous-earth filtration. Final report". United States.
@article{osti_5865700,
title = {Radium removal from water by manganese dioxide adsorption and diatomaceous-earth filtration. Final report},
author = {Patel, R and Clifford, D},
abstractNote = {The study reveals that radium adsorption onto precipitated MnO2 followed by diatomaceous earth (DE) filtration is a very effective treatment process for radium-contaminated water. Radium removals in the range of 80% to 97% were observed for performed MnO2 feed concentrations of 0.63 and 1.26 mg/L as Mn in groundwaters with hardness in the range of 100 to 245 mg/L as CaCO3. Radium removal increased slightly with increasing pH whereas it decreased slightly with increasing hardness and iron (II) concentrations. Pilot studies were performed in Lemont, IL using DE filtration on a groundwater containing 12 pCi/L226Ra and 6 pCi/L228. Radium removals for both the pilot plants ranged from 90% to 97% at a MnO2 feed concentration of 1.26 mg/L as Mn, a total hardness of 245 mg/L as CaCO3, and a pH of 6.5. The costs of water treatment by MnO2 adsorption and DE filtration were estimated at $0.71 per 1000 gal for 280,000 gpd plants and $0.47 for 1 Mgd plants.},
doi = {},
url = {https://www.osti.gov/biblio/5865700},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1991},
month = {Fri Nov 01 00:00:00 EST 1991}
}