Elemental release from Kentucky raw and retorted shales by leaching
Conference
·
· Proceedings, Eastern Oil Shale Symposium; (United States)
OSTI ID:6012214
One of the important problems associated with the utilization of eastern oil shales is the potential environmental impact of leaching raw and spent oil shales by rainfall or snow melt. The leaching behavior of up to 38 elements released from both raw and spent shale by contact with water and pH buffered solutions was studied. The raw shales, spent shales and leachates are analyzed by instrumental neutron activation analysis. The samples analyzed to date include representatives of the Sunbury and Cleveland oil shales from Kentucky. Special attention has been directed to elements known to be toxic or involved in important physiological processes. Preliminary results confirm the expectation that trace elements exhibit markedly different release patterns from raw and spent shales. The elements Br, Cd, Co, Mg, Ni, and Zn are removed from both raw and spent shale to the extent of 1-40% by leaching. The transference of trace elements to leachate is also found to be pH dependent. Effects of variables such as retorting temperature and ramping rate on the leaching properties of the spent shale are also presented.
- Research Organization:
- Univ. of Kentucky, Lexington
- OSTI ID:
- 6012214
- Report Number(s):
- CONF-8411130-
- Conference Information:
- Journal Name: Proceedings, Eastern Oil Shale Symposium; (United States) Journal Volume: IMMR84/124
- Country of Publication:
- United States
- Language:
- English
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·
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Related Subjects
04 OIL SHALES AND TAR SANDS
040900* -- Oil Shales & Tar Sands-- Waste management
ACTIVATION ANALYSIS
ALKALINE EARTH METALS
BITUMINOUS MATERIALS
BROMINE
CADMIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COBALT
DISPERSIONS
DISSOLUTION
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FEDERAL REGION IV
FOSSIL FUELS
FUELS
HALOGENS
KENTUCKY
LEACHATES
LEACHING
MAGNESIUM
MATERIALS
METALS
MIXTURES
NICKEL
NONMETALS
NORTH AMERICA
OIL SHALES
SEPARATION PROCESSES
SOLUTIONS
SPENT SHALES
TRANSITION ELEMENTS
USA
ZINC
040900* -- Oil Shales & Tar Sands-- Waste management
ACTIVATION ANALYSIS
ALKALINE EARTH METALS
BITUMINOUS MATERIALS
BROMINE
CADMIUM
CARBONACEOUS MATERIALS
CHEMICAL ANALYSIS
COBALT
DISPERSIONS
DISSOLUTION
ELEMENTS
ENERGY SOURCES
ENVIRONMENTAL IMPACTS
FEDERAL REGION IV
FOSSIL FUELS
FUELS
HALOGENS
KENTUCKY
LEACHATES
LEACHING
MAGNESIUM
MATERIALS
METALS
MIXTURES
NICKEL
NONMETALS
NORTH AMERICA
OIL SHALES
SEPARATION PROCESSES
SOLUTIONS
SPENT SHALES
TRANSITION ELEMENTS
USA
ZINC