Removal of heavy metal ions from solution by chemically modified peat: effects of pH, ionic strength and flow rate
Sulfuric acid treated peat possesses a significant cation exchange capacity and can be used as a practical cation exchanger in the column mode. The influences of pH, ionic strength and flow rate on the efficiency of heavy metal ion removal are investigated in the present paper. All solutions consisted of a mixture of eight metal ions: Mn/sup 2/, Co/sup 2 +/, Ni/sup 2 +/, Cu/sup 2 +/, Zn/sup 2 +/, Cd/sup 2 +/, Pb/sup 2 +/ and UO/sub 2//sup 2 +/. The chemically modified peat displayed a high efficiency for simultaneously removing all of these metal ions from solution even when the number of equivalents of exchanger was only in moderate excess over the total number of equivalents of metal ion passed through the column. The columns containing the bound metals could be regenerated by elution with 3N HCl. 23 references, 3 tables.
- Research Organization:
- Colorado School of Mines, Golden
- OSTI ID:
- 5769370
- Journal Information:
- Solvent Extr. Ion Exch.; (United States), Vol. 2:7-8
- Country of Publication:
- United States
- Language:
- English
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CADMIUM
ION EXCHANGE
COBALT
COPPER
LEAD
MANGANESE
NICKEL
PEAT
URANIUM
ZINC
ABSORPTION SPECTROSCOPY
CATIONS
EXPERIMENTAL DATA
EXTRACTION COLUMNS
INDUSTRIAL WASTES
PH VALUE
SULFURIC ACID
WASTE WATER
ACTINIDES
CHARGED PARTICLES
DATA
ELEMENTS
ENERGY SOURCES
EXTRACTION APPARATUSES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
IONS
LIQUID WASTES
METALS
NUMERICAL DATA
ORGANIC MATTER
OXYGEN COMPOUNDS
SEPARATION EQUIPMENT
SPECTROSCOPY
TRANSITION ELEMENTS
WASTES
WATER
400105* - Separation Procedures
052001 - Nuclear Fuels- Waste Processing