Selective adsorption and ion exchange of metal cations and anions with silico-titanates and layered titanates

Journal Article · Fri Jan 01 00:00:00 EST 1993 · Waste Management; (United States)

DOI:https://doi.org/10.1016/0956-053X(93)90080-G· OSTI ID:5571618

Anthony, R G; Philip, C V ^[1]; Dosch, R G ^[2]

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1. Texas A and M Univ., College Station, TX (United States). Dept. of Chemical Engineering
2. Sandia National Labs., Albuquerque, NM (United States)

Metal ions may be removed from aqueous wastes from metal processing plants and from refineries. They may also be used in concentrating radioactive elements found in dilute, aqueous, nuclear wastes. A new series of silico-titanates and alkali titanates are shown to have specific selectivity for cations of lead, mercury, and cadmium and the dichromate anion in solutions with low and high pH. Furthermore, one particular silico-titanate, TAM-5, was found to be highly selective for Cs[sup +] and Sr[sup 2+] in solutions of 5.7 M Na[sup +] and 0.6 M Oh[sup [minus]]. A high potential exists for these materials for removing Cs[sup +] and Sr[sup 2+] from radioactive aqueous wastes containing high concentrations of Na[sup +] at high and low pH.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5571618
• Journal Information: Waste Management; (United States), Vol. 13:5-7; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
CADMIUM
MATERIALS RECOVERY
CESIUM
CHROMIUM
LEAD
MERCURY
STRONTIUM
TITANATES
SOLVENT PROPERTIES
LIQUID WASTES
ALKALI METALS
ALKALINE EARTH METALS
ELEMENTS
MANAGEMENT
METALS
OXYGEN COMPOUNDS
PROCESSING
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management